:root {
  --bg: #141414;
  --surface: #181818;
  --surface-soft: #232323;
  --surface-hover: #2f2f2f;
  --surface-strong: #0b0b0b;
  --text: #ffffff;
  --text-soft: #e5e5e5;
  --text-muted: #b3b3b3;
  --line: #2b2b2b;
  --brand: #e50914;
  --primary: #e50914;
  --brand-soft: rgba(229, 9, 20, 0.28);
  --green: #46d369;
  --blue: #3577ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

/* Multi-page navigation and course pages */
.brand {
  font-size: 2rem;
  letter-spacing: 0;
}

.nav-menu {
  position: relative;
}

.nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(18, 18, 18, 0.96);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-menu:hover .nav-submenu,
.nav-menu:focus-within .nav-submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-submenu a {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.nav-submenu a:hover,
.nav-submenu a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.section-link {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 700;
}

.page-main {
  padding: 112px clamp(16px, 4vw, 48px) 90px;
}

.page-header {
  margin-bottom: 28px;
}

.page-header--compact {
  margin-bottom: 18px;
}

.page-header h1 {
  margin: 0;
  color: var(--text);
  font-size: 4.5rem;
  line-height: 1;
}

.page-header p {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.category-strip--wrap {
  flex-wrap: wrap;
  overflow: visible;
  padding-bottom: 0;
}

.category-courses-grid--page {
  margin-top: 18px;
}

.catalog-course-card,
.teacher-card {
  display: block;
}

.author-page__hero-copy h1,
.author-page__hero-copy h2 {
  margin: 0;
  color: var(--text);
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1;
}

.course-hero {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: 8px;
  background: #101010;
}

.course-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(20, 20, 20, 0.9), rgba(20, 20, 20, 0.48), transparent),
    linear-gradient(180deg, transparent 45%, rgba(20, 20, 20, 0.92));
}

.course-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.72);
}

.course-hero__copy {
  position: absolute;
  left: clamp(20px, 4vw, 44px);
  right: clamp(20px, 4vw, 44px);
  bottom: clamp(22px, 5vw, 44px);
  z-index: 1;
  max-width: 850px;
}

.course-hero__copy h1 {
  margin: 0;
  color: var(--text);
  font-size: 3.6rem;
  line-height: 1;
}

.course-hero__copy p {
  margin: 16px 0 0;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.6;
}

.course-hero__copy p a {
  color: var(--text);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.course-player {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 20px;
  margin-top: 22px;
}

.course-player__stage {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: #000000;
}

.course-player__playlist {
  min-width: 0;
}

.course-player__playlist h2 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.5rem;
}

@media (max-width: 960px) {
  .course-player {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-main {
    padding-top: 92px;
  }

  .page-header h1 {
    font-size: 3rem;
  }

  .course-hero {
    min-height: 360px;
  }

  .course-hero__copy h1 {
    font-size: 2.4rem;
  }
}

/* Antigravity pass: camada final inspirada em streaming premium, sem copiar marca proprietaria. */
:root {
  --bg: #050505;
  --surface: #141414;
  --surface-soft: #1f1f1f;
  --surface-hover: #2e2e2e;
  --text: #ffffff;
  --text-soft: #eeeeee;
  --text-muted: #aaa;
  --brand: #e50914;
  --primary: #e50914;
  --line: rgba(255, 255, 255, 0.105);
  --streaming-pad: clamp(18px, 3.7vw, 68px);
  color-scheme: dark;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 18% 0%, rgba(229, 9, 20, 0.13), transparent 34rem),
    linear-gradient(180deg, #050505 0%, #0a0a0a 48%, #141414 100%) !important;
  font-family: "Netflix Sans", "Aptos Display", "Segoe UI Variable Display", "Helvetica Neue", Arial, sans-serif !important;
  text-rendering: geometricPrecision;
}

.top-nav {
  height: 68px !important;
  padding: 0 var(--streaming-pad) !important;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.38) 72%, transparent) !important;
  backdrop-filter: saturate(130%) blur(9px);
  transition: background 220ms ease, box-shadow 220ms ease, height 220ms ease;
}

.top-nav.is-scrolled {
  height: 62px !important;
  background: rgba(5, 5, 5, 0.96) !important;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.62);
}

.brand,
.auth-logo {
  color: var(--brand) !important;
  font-size: clamp(2rem, 2.5vw, 2.65rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.08em !important;
  text-shadow: 0 0 28px rgba(229, 9, 20, 0.34);
}

.nav-links {
  gap: clamp(14px, 1.5vw, 24px) !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.74) !important;
  font-size: 0.9rem !important;
  font-weight: 600 !important;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: #ffffff !important;
}

.nav-submenu {
  border-radius: 4px !important;
  background: rgba(12, 12, 12, 0.96) !important;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.72) !important;
}

.icon-button,
.profile-button {
  border: 0 !important;
  background: transparent !important;
}

.icon-button:hover,
.profile-button:hover {
  background: rgba(255, 255, 255, 0.12) !important;
}

.profile-button {
  border-radius: 4px !important;
  overflow: hidden;
}

.profile-button__initial {
  background: linear-gradient(135deg, #1f64ff, #69a2ff) !important;
}

.hero-banner {
  height: min(100vh, 920px) !important;
  min-height: 680px !important;
  background: #050505 !important;
}

.hero-banner__media img {
  transform: scale(1.04);
  filter: brightness(0.58) saturate(1.14) contrast(1.06) !important;
  animation: antigravityHeroDrift 18s ease-in-out infinite alternate;
}

.hero-banner__overlay--left {
  background:
    linear-gradient(90deg, #050505 0%, rgba(5, 5, 5, 0.9) 21%, rgba(5, 5, 5, 0.42) 58%, transparent 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.34), transparent 32%) !important;
}

.hero-banner__overlay--bottom {
  background:
    linear-gradient(180deg, transparent 45%, rgba(5, 5, 5, 0.88) 78%, var(--bg) 100%),
    radial-gradient(circle at 18% 92%, rgba(229, 9, 20, 0.14), transparent 30rem) !important;
}

.hero-banner__content {
  left: var(--streaming-pad) !important;
  bottom: 16% !important;
  max-width: min(780px, 54vw) !important;
  animation: antigravityCopyIn 700ms cubic-bezier(0.2, 0.78, 0.2, 1) both;
}

.hero-banner__badge {
  border-radius: 3px !important;
  background: rgba(255, 255, 255, 0.14) !important;
  color: #fff !important;
  letter-spacing: 0.34em !important;
  text-transform: uppercase;
}

.hero-banner h1 {
  max-width: 12ch;
  color: #ffffff !important;
  font-size: clamp(3.8rem, 8.1vw, 7.35rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.078em !important;
  line-height: 0.86 !important;
  text-shadow: 0 4px 28px rgba(0, 0, 0, 0.58);
  text-wrap: balance;
}

.hero-banner__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  font-weight: 800;
}

.hero-banner__meta span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
}

.hero-banner__meta span + span::before {
  content: "";
  width: 4px;
  height: 4px;
  margin-right: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.54);
}

.hero-banner__summary {
  max-width: 680px !important;
  color: rgba(255, 255, 255, 0.84) !important;
  font-size: clamp(1rem, 1.28vw, 1.22rem) !important;
  line-height: 1.48 !important;
  text-shadow: 0 3px 20px rgba(0, 0, 0, 0.58);
}

.hero-button {
  min-height: 52px !important;
  border-radius: 4px !important;
  padding: 0 25px !important;
  font-size: 1.04rem !important;
  font-weight: 900 !important;
  letter-spacing: -0.01em;
}

.hero-button--primary {
  color: #050505 !important;
  background: rgba(255, 255, 255, 0.96) !important;
}

.hero-button--primary:hover {
  background: rgba(255, 255, 255, 0.78) !important;
}

.hero-button--secondary {
  color: #fff !important;
  background: rgba(109, 109, 110, 0.72) !important;
  backdrop-filter: blur(12px);
}

.hero-button--secondary:hover {
  background: rgba(109, 109, 110, 0.52) !important;
}

.main-content {
  z-index: 5 !important;
  margin-top: -142px !important;
  padding: 0 var(--streaming-pad) 96px !important;
}

.page-main,
.course-page,
.author-page {
  padding-inline: var(--streaming-pad) !important;
}

.continue-section,
.top-ten-section,
.categories-section,
.teachers-section {
  margin-top: clamp(26px, 4vw, 48px) !important;
}

.section-heading {
  align-items: center !important;
  margin-bottom: 12px !important;
}

.section-heading__title {
  color: #ffffff !important;
  font-size: clamp(1.42rem, 1.9vw, 2.06rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.054em !important;
}

.section-heading__summary {
  color: rgba(255, 255, 255, 0.62) !important;
}

.section-link {
  color: rgba(255, 255, 255, 0.88) !important;
  font-size: 0.95rem !important;
}

.section-link:hover {
  color: #ffffff !important;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.main-content .continue-watching-grid,
.main-content .category-courses-grid,
.main-content .teachers-grid,
.main-content .specialty-grid--home,
.ranked-row {
  display: flex !important;
  grid-template-columns: none !important;
  gap: clamp(10px, 1.05vw, 16px) !important;
  overflow-x: auto !important;
  overflow-y: visible !important;
  padding: 7px 0 34px !important;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 16px, #000 calc(100% - 24px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 16px, #000 calc(100% - 24px), transparent);
}

.main-content .continue-watching-grid::-webkit-scrollbar,
.main-content .category-courses-grid::-webkit-scrollbar,
.main-content .teachers-grid::-webkit-scrollbar,
.main-content .specialty-grid--home::-webkit-scrollbar,
.ranked-row::-webkit-scrollbar {
  display: none;
}

.main-content .category-courses-grid > .catalog-course-card,
.main-content .continue-watching-grid > .continue-card {
  flex: 0 0 clamp(245px, 17vw, 340px) !important;
  scroll-snap-align: start;
}

.main-content .teachers-grid > .teacher-card {
  flex: 0 0 clamp(260px, 19vw, 360px) !important;
  min-height: 390px !important;
}

.main-content .specialty-grid--home > .specialty-card {
  flex: 0 0 clamp(230px, 18vw, 320px) !important;
}

.ranked-row {
  gap: clamp(14px, 1.7vw, 26px) !important;
  padding-left: 6px !important;
}

.ranked-card {
  position: relative;
  display: grid;
  grid-template-columns: clamp(74px, 7vw, 132px) clamp(170px, 13vw, 250px);
  align-items: end;
  flex: 0 0 auto;
  min-height: clamp(128px, 13vw, 210px);
  color: #ffffff;
  scroll-snap-align: start;
  transition: transform 190ms ease, filter 190ms ease;
}

.ranked-card:hover,
.ranked-card:focus-visible {
  z-index: 30;
  transform: translateY(-7px) scale(1.035);
}

.ranked-card__number {
  z-index: 0;
  color: #050505;
  font-size: clamp(7.2rem, 13vw, 15.6rem);
  font-weight: 950;
  letter-spacing: -0.14em;
  line-height: 0.72;
  -webkit-text-stroke: clamp(2px, 0.28vw, 5px) rgba(255, 255, 255, 0.46);
  text-shadow: 0 18px 40px rgba(0, 0, 0, 0.52);
}

.ranked-card__poster {
  position: relative;
  z-index: 1;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 4px;
  background: #181818;
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.62);
}

.ranked-card__poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.08) contrast(1.04);
  transition: transform 220ms ease, filter 220ms ease;
}

.ranked-card:hover .ranked-card__poster img {
  transform: scale(1.05);
  filter: saturate(1.14) contrast(1.08) brightness(0.88);
}

.ranked-card__copy {
  position: absolute;
  left: clamp(82px, 7.6vw, 142px);
  right: 10px;
  bottom: 0;
  z-index: 2;
  padding: 36px 12px 12px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.86));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.ranked-card:hover .ranked-card__copy,
.ranked-card:focus-visible .ranked-card__copy {
  opacity: 1;
  transform: translateY(0);
}

.ranked-card__copy strong,
.ranked-card__copy span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ranked-card__copy strong {
  font-size: 0.9rem;
  font-weight: 900;
}

.ranked-card__copy span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.74rem;
}

.catalog-course-card,
.continue-card,
.teacher-card,
.specialty-card {
  border: 0 !important;
  border-radius: 4px !important;
  background: #181818 !important;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28) !important;
  transform-origin: center bottom;
  transition: transform 190ms ease, box-shadow 190ms ease, filter 190ms ease;
  will-change: transform;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible,
.continue-card:hover,
.continue-card:focus-visible,
.teacher-card:hover,
.teacher-card:focus-visible,
.specialty-card:hover,
.specialty-card:focus-visible {
  z-index: 30;
  box-shadow: 0 28px 82px rgba(0, 0, 0, 0.72) !important;
  transform: translateY(-8px) scale(1.055) !important;
}

.catalog-course-card__media,
.continue-card__media {
  aspect-ratio: 16 / 9 !important;
  border-radius: 4px 4px 0 0 !important;
  background:
    radial-gradient(circle at 50% 24%, rgba(229, 9, 20, 0.18), transparent 38%),
    #090909 !important;
}

.catalog-course-card__media img,
.continue-card__media img,
.teacher-card__media img {
  filter: saturate(1.08) contrast(1.04);
  transition: transform 240ms ease, filter 240ms ease;
}

.catalog-course-card:hover img,
.continue-card:hover img,
.teacher-card:hover img {
  transform: scale(1.045);
  filter: saturate(1.16) contrast(1.08) brightness(0.9);
}

.catalog-course-card__index {
  top: auto !important;
  right: 10px !important;
  bottom: 10px !important;
  min-width: 34px !important;
  height: 34px !important;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.66) !important;
  backdrop-filter: blur(8px);
}

.catalog-course-card__body,
.continue-card__body {
  background:
    linear-gradient(180deg, rgba(24, 24, 24, 0.64), #181818 42%) !important;
}

.catalog-course-card__body h3,
.continue-card__body h3 {
  color: #ffffff !important;
  letter-spacing: -0.025em !important;
  text-wrap: balance;
}

.course-progress-line,
.lesson-progress-line {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16) !important;
}

.course-progress-line span,
.lesson-progress-line span {
  background: #e50914 !important;
  box-shadow: 0 0 18px rgba(229, 9, 20, 0.42);
}

.specialty-card {
  background:
    linear-gradient(135deg, rgba(229, 9, 20, 0.22), transparent 42%),
    linear-gradient(180deg, #242424, #151515) !important;
}

.teacher-card__overlay {
  background:
    linear-gradient(180deg, transparent 26%, rgba(0, 0, 0, 0.9) 100%),
    radial-gradient(circle at 20% 18%, rgba(229, 9, 20, 0.14), transparent 30rem) !important;
}

.category-strip {
  padding-block: 4px 16px !important;
  scrollbar-width: none !important;
}

.category-chip {
  min-height: 42px;
  border-radius: 999px !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  background: rgba(255, 255, 255, 0.105) !important;
}

.category-chip:hover,
.category-chip:focus-visible,
.category-chip.is-active {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.23) !important;
}

.course-page .course-hero,
.author-page__hero {
  margin-inline: calc(var(--streaming-pad) * -1);
  border-radius: 0 !important;
  min-height: clamp(420px, 58vh, 690px) !important;
}

.course-hero img,
.author-page__hero img {
  filter: brightness(0.62) saturate(1.12) contrast(1.05) !important;
}

.course-hero::after,
.author-page__hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.94), rgba(0, 0, 0, 0.52) 46%, transparent 84%),
    linear-gradient(180deg, transparent 38%, var(--bg) 100%) !important;
}

.course-hero__copy h1,
.author-page__hero-copy h1,
.author-page__hero-copy h2 {
  font-size: clamp(3rem, 7vw, 6.4rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.078em !important;
}

.course-player__stage {
  border-radius: 5px !important;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.74) !important;
}

.course-player__playlist {
  border: 1px solid rgba(255, 255, 255, 0.075) !important;
  border-radius: 5px !important;
  background: linear-gradient(180deg, rgba(33, 33, 33, 0.94), rgba(16, 16, 16, 0.94)) !important;
}

.playlist-item {
  border: 1px solid transparent !important;
  background: rgba(255, 255, 255, 0.045) !important;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.playlist-item:hover,
.playlist-item:focus-visible,
.playlist-item.is-active {
  border-color: rgba(255, 255, 255, 0.13) !important;
  background: rgba(255, 255, 255, 0.12) !important;
}

.playlist-item.is-active {
  transform: translateX(-2px);
}

.profile-page {
  background:
    radial-gradient(circle at 50% 0%, rgba(229, 9, 20, 0.13), transparent 34rem),
    linear-gradient(180deg, #050505, #111111) !important;
}

.profile-picker h1 {
  font-size: clamp(2.6rem, 5vw, 4.4rem) !important;
  font-weight: 500 !important;
  letter-spacing: -0.055em;
}

.profile-avatar {
  border-radius: 4px !important;
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.42);
}

.auth-card,
.admin-panel {
  border-color: rgba(255, 255, 255, 0.1) !important;
  background: rgba(8, 8, 8, 0.72) !important;
  backdrop-filter: blur(18px);
}

.continue-section,
.top-ten-section,
.categories-section,
.teachers-section,
.specialty-sections,
.author-page__content,
.course-page {
  content-visibility: auto;
  contain-intrinsic-size: 820px;
}

@keyframes antigravityHeroDrift {
  from {
    transform: scale(1.04) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.085) translate3d(-1.2%, -0.8%, 0);
  }
}

@keyframes antigravityCopyIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 900px) {
  .hero-banner {
    min-height: 580px !important;
  }

  .hero-banner__content {
    right: var(--streaming-pad) !important;
    bottom: 13% !important;
    max-width: none !important;
  }

  .main-content {
    margin-top: -88px !important;
  }

  .ranked-card {
    grid-template-columns: 78px 210px;
  }

  .catalog-course-card:hover,
  .catalog-course-card:focus-visible,
  .continue-card:hover,
  .continue-card:focus-visible,
  .teacher-card:hover,
  .teacher-card:focus-visible,
  .specialty-card:hover,
  .specialty-card:focus-visible {
    transform: translateY(-3px) scale(1.02) !important;
  }
}

@media (max-width: 620px) {
  .top-nav {
    padding-inline: 16px !important;
  }

  .nav-links {
    display: none !important;
  }

  .hero-banner {
    min-height: 520px !important;
  }

  .hero-banner h1 {
    font-size: clamp(2.8rem, 16vw, 4.2rem) !important;
  }

  .hero-button {
    width: 100%;
    justify-content: center;
  }

  .section-heading {
    align-items: flex-start !important;
  }

  .ranked-card {
    grid-template-columns: 70px 185px;
  }
}

/* Streaming polish: camada final para aproximar a experiência visual de um app premium de vídeo. */
:root {
  --bg: #070707;
  --surface: #111111;
  --surface-soft: #1a1a1a;
  --surface-hover: #2a2a2a;
  --line: rgba(255, 255, 255, 0.105);
  --text-muted: #a7a7a7;
  --brand-glow: 0 0 26px rgba(229, 9, 20, 0.32);
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 18% 0%, rgba(229, 9, 20, 0.12), transparent 28rem),
    radial-gradient(circle at 82% 8%, rgba(255, 255, 255, 0.055), transparent 26rem),
    linear-gradient(180deg, #050505 0%, #090909 42%, #121212 100%);
  font-family: "Netflix Sans", "Aptos Display", "Segoe UI Variable Display", "Helvetica Neue", sans-serif;
  text-rendering: geometricPrecision;
}

.top-nav {
  height: 72px;
  padding-inline: clamp(18px, 3.4vw, 64px) !important;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.44) 62%, transparent 100%) !important;
  backdrop-filter: saturate(128%) blur(10px);
  transition: background 220ms ease, box-shadow 220ms ease, height 220ms ease;
}

.top-nav.is-scrolled {
  height: 64px;
  background: rgba(5, 5, 5, 0.94) !important;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.5);
}

.brand,
.auth-logo {
  color: #e50914 !important;
  font-weight: 950 !important;
  letter-spacing: -0.075em !important;
  text-shadow: var(--brand-glow);
}

.nav-link {
  color: rgba(255, 255, 255, 0.78) !important;
  font-size: 0.92rem !important;
  transition: color 160ms ease, opacity 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: #ffffff !important;
}

.icon-button,
.profile-button {
  background: rgba(255, 255, 255, 0.055) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  transition: background 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.icon-button:hover,
.profile-button:hover {
  background: rgba(255, 255, 255, 0.15) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
  transform: translateY(-1px);
}

.profile-button {
  overflow: hidden;
  border-radius: 7px !important;
}

.profile-button__initial {
  background: linear-gradient(135deg, #2362ff, #68a4ff) !important;
}

.hero-banner {
  height: min(100vh, 920px) !important;
  min-height: 660px !important;
  background: #050505;
}

.hero-banner__media img {
  transform: scale(1.035);
  filter: brightness(0.58) saturate(1.13) contrast(1.04) !important;
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero-banner__overlay--left {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.94) 0%, rgba(0, 0, 0, 0.72) 34%, rgba(0, 0, 0, 0.16) 72%, transparent 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.34), transparent 30%) !important;
}

.hero-banner__overlay--bottom {
  background:
    linear-gradient(180deg, transparent 45%, rgba(7, 7, 7, 0.9) 82%, var(--bg) 100%),
    radial-gradient(circle at 18% 86%, rgba(229, 9, 20, 0.12), transparent 28rem) !important;
}

.hero-banner__content {
  bottom: 18% !important;
  max-width: min(760px, 52vw) !important;
  animation: heroCopyIn 680ms cubic-bezier(0.2, 0.78, 0.2, 1) both;
}

.hero-banner__badge,
.auth-kicker {
  border-radius: 4px !important;
  background: rgba(255, 255, 255, 0.14) !important;
  color: #ffffff !important;
  letter-spacing: 0.34em !important;
  text-transform: uppercase;
}

.hero-banner h1 {
  max-width: 12ch;
  font-size: clamp(3.8rem, 8.4vw, 7.4rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.075em !important;
  line-height: 0.86 !important;
  text-wrap: balance;
}

.hero-banner__summary {
  max-width: 680px !important;
  color: rgba(255, 255, 255, 0.84) !important;
  font-size: clamp(1rem, 1.35vw, 1.24rem) !important;
  line-height: 1.48 !important;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.48);
}

.hero-button {
  min-height: 52px !important;
  border-radius: 5px !important;
  padding-inline: 24px !important;
  font-weight: 900 !important;
  letter-spacing: -0.01em;
  transition: background 170ms ease, color 170ms ease, transform 170ms ease;
}

.hero-button:hover,
.hero-button:focus-visible {
  transform: translateY(-1px) scale(1.015);
}

.hero-button--primary {
  color: #050505 !important;
  background: rgba(255, 255, 255, 0.96) !important;
}

.hero-button--secondary {
  color: #ffffff !important;
  background: rgba(109, 109, 110, 0.72) !important;
  backdrop-filter: blur(12px);
}

.main-content,
.page-main,
.course-page,
.author-page {
  padding-inline: clamp(18px, 3.4vw, 64px) !important;
}

.main-content {
  margin-top: -130px !important;
}

.categories-section,
.teachers-section,
.continue-section,
.specialty-sections,
.author-page__content,
.course-page {
  content-visibility: auto;
  contain-intrinsic-size: 800px;
}

.section-heading {
  align-items: center !important;
  margin-bottom: 14px !important;
}

.section-heading__title {
  font-size: clamp(1.42rem, 2.05vw, 2.12rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.055em !important;
}

.section-link {
  color: rgba(255, 255, 255, 0.88) !important;
  font-size: 0.96rem;
}

.section-link:hover {
  color: #ffffff !important;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.category-strip {
  padding-block: 4px 14px !important;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18px, #000 calc(100% - 18px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 18px, #000 calc(100% - 18px), transparent);
}

.category-strip::-webkit-scrollbar {
  display: none;
}

.category-chip {
  min-height: 42px;
  border-radius: 999px !important;
  background: rgba(255, 255, 255, 0.105) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.category-chip:hover,
.category-chip:focus-visible,
.category-chip.is-active {
  background: rgba(255, 255, 255, 0.22) !important;
  color: #ffffff !important;
}

.specialty-grid--home,
.category-courses-grid,
.teachers-grid,
.continue-watching-grid {
  gap: clamp(10px, 1.2vw, 18px) !important;
}

.catalog-course-card,
.teacher-card,
.continue-card,
.specialty-card {
  border: 0 !important;
  background: #181818 !important;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24) !important;
  transform-origin: center bottom;
  will-change: transform;
}

.catalog-course-card,
.continue-card {
  border-radius: 4px !important;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible,
.teacher-card:hover,
.teacher-card:focus-visible,
.continue-card:hover,
.continue-card:focus-visible {
  z-index: 20;
  box-shadow: 0 26px 72px rgba(0, 0, 0, 0.72) !important;
  transform: translateY(-7px) scale(1.045) !important;
}

.catalog-course-card__media,
.continue-card__media {
  aspect-ratio: 16 / 9 !important;
  background:
    radial-gradient(circle at 48% 26%, rgba(229, 9, 20, 0.18), transparent 38%),
    #090909 !important;
}

.catalog-course-card__media img,
.continue-card__media img,
.teacher-card__media img {
  filter: saturate(1.08) contrast(1.03);
  transition: transform 260ms ease, filter 260ms ease;
}

.catalog-course-card:hover img,
.continue-card:hover img,
.teacher-card:hover img {
  transform: scale(1.045);
  filter: saturate(1.15) contrast(1.08) brightness(0.92);
}

.catalog-course-card__index {
  top: auto !important;
  right: 10px !important;
  bottom: 10px !important;
  min-width: 34px !important;
  height: 34px !important;
  border: 2px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.64) !important;
  backdrop-filter: blur(8px);
}

.catalog-course-card__body,
.continue-card__body {
  background:
    linear-gradient(180deg, rgba(24, 24, 24, 0.62), #181818 42%) !important;
}

.catalog-course-card__body h3,
.continue-card__body h3 {
  letter-spacing: -0.025em !important;
  text-wrap: balance;
}

.course-progress-line,
.lesson-progress-line {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16) !important;
}

.course-progress-line span,
.lesson-progress-line span {
  background: #e50914 !important;
  box-shadow: 0 0 18px rgba(229, 9, 20, 0.36);
}

.teacher-card {
  min-height: 340px;
  border-radius: 4px !important;
}

.teacher-card__overlay {
  background:
    linear-gradient(180deg, transparent 28%, rgba(0, 0, 0, 0.88) 100%),
    radial-gradient(circle at 20% 18%, rgba(229, 9, 20, 0.14), transparent 34rem) !important;
}

.specialty-card {
  overflow: hidden;
  border-radius: 4px !important;
  background:
    linear-gradient(135deg, rgba(229, 9, 20, 0.18), transparent 38%),
    linear-gradient(180deg, #242424, #161616) !important;
}

.specialty-card:hover,
.specialty-card:focus-visible {
  transform: translateY(-5px) scale(1.025) !important;
}

.course-page .course-hero,
.author-page__hero {
  border-radius: 0 !important;
  margin-inline: calc(clamp(18px, 3.4vw, 64px) * -1);
  min-height: clamp(420px, 58vh, 680px) !important;
}

.course-hero img,
.author-page__hero img {
  filter: brightness(0.62) saturate(1.1) contrast(1.04) !important;
}

.course-hero::after,
.author-page__hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.48) 44%, transparent 82%),
    linear-gradient(180deg, transparent 38%, var(--bg) 100%) !important;
}

.course-hero__copy h1,
.author-page__hero-copy h1,
.author-page__hero-copy h2 {
  font-size: clamp(3rem, 7vw, 6.4rem) !important;
  font-weight: 950 !important;
  letter-spacing: -0.075em;
}

.course-player {
  margin-top: 28px !important;
}

.course-player__stage {
  border-radius: 6px !important;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.74) !important;
}

.course-player__playlist {
  border: 1px solid rgba(255, 255, 255, 0.075) !important;
  border-radius: 6px !important;
  background: linear-gradient(180deg, rgba(33, 33, 33, 0.92), rgba(16, 16, 16, 0.92)) !important;
}

.playlist-item {
  border: 1px solid transparent !important;
  background: rgba(255, 255, 255, 0.045) !important;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.playlist-item:hover,
.playlist-item:focus-visible,
.playlist-item.is-active {
  border-color: rgba(255, 255, 255, 0.13) !important;
  background: rgba(255, 255, 255, 0.12) !important;
}

.playlist-item.is-active {
  transform: translateX(-2px);
}

.profile-page {
  background:
    radial-gradient(circle at 50% 0%, rgba(229, 9, 20, 0.12), transparent 34rem),
    linear-gradient(180deg, #050505, #111111) !important;
}

.profile-picker h1 {
  font-size: clamp(2.6rem, 5vw, 4.4rem) !important;
  font-weight: 500 !important;
  letter-spacing: -0.055em;
}

.profile-avatar {
  border-radius: 4px !important;
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.42);
}

.auth-card,
.admin-panel {
  border-color: rgba(255, 255, 255, 0.1) !important;
  background: rgba(8, 8, 8, 0.72) !important;
  backdrop-filter: blur(18px);
}

@keyframes heroDrift {
  from {
    transform: scale(1.035) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.08) translate3d(-1.2%, -0.8%, 0);
  }
}

@keyframes heroCopyIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 900px) {
  .top-nav {
    height: auto;
  }

  .hero-banner {
    min-height: 580px !important;
  }

  .hero-banner__content {
    max-width: none !important;
    right: 18px !important;
    bottom: 14% !important;
  }

  .hero-banner h1 {
    max-width: 11ch;
  }

  .main-content {
    margin-top: -82px !important;
  }

  .catalog-course-card:hover,
  .catalog-course-card:focus-visible,
  .teacher-card:hover,
  .teacher-card:focus-visible,
  .continue-card:hover,
  .continue-card:focus-visible {
    transform: translateY(-3px) scale(1.015) !important;
  }
}

@media (max-width: 620px) {
  .hero-banner {
    min-height: 520px !important;
  }

  .hero-banner h1 {
    font-size: clamp(2.8rem, 16vw, 4.2rem) !important;
  }

  .hero-button {
    width: 100%;
    justify-content: center;
  }

  .section-heading {
    align-items: flex-start !important;
  }
}

/* Final course player override: keep this after the legacy page styles. */
.course-page {
  padding-top: 86px;
}

.course-page .course-hero {
  min-height: clamp(300px, 42vh, 520px);
}

.course-player {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px) !important;
  align-items: start;
  gap: 18px !important;
}

.course-player__stage {
  border-radius: 0 !important;
  background: #000000;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
}

.course-player__stage::before {
  content: "";
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.course-player__stage > .player-modal__video,
.course-player__stage > .player-modal__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none !important;
  min-height: 0 !important;
}

.course-player__playlist {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 110px);
  overflow: hidden auto;
  padding: 18px;
  border-radius: 10px;
  background: rgba(20, 20, 20, 0.94);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
}

.course-player__playlist::-webkit-scrollbar {
  width: 8px;
}

.course-player__playlist::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.course-player__playlist .player-playlist__list {
  gap: 8px;
}

.course-player__playlist .playlist-item {
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.055);
}

.course-player__playlist .playlist-item:hover,
.course-player__playlist .playlist-item:focus-visible,
.course-player__playlist .playlist-item.is-active {
  background: rgba(255, 255, 255, 0.13);
}

@media (max-width: 960px) {
  .course-player {
    grid-template-columns: 1fr !important;
  }

  .course-player__playlist {
    position: static;
    max-height: none;
  }
}

/* Final course player override: keep this after the legacy page styles. */
.course-page {
  padding-top: 86px;
}

.course-page .course-hero {
  min-height: clamp(300px, 42vh, 520px);
}

.course-player {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px) !important;
  align-items: start;
  gap: 18px !important;
}

.course-player__stage {
  border-radius: 0 !important;
  background: #000000;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
}

.course-player__stage::before {
  content: "";
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.course-player__stage > .player-modal__video,
.course-player__stage > .player-modal__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none !important;
  min-height: 0 !important;
}

.course-player__playlist {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 110px);
  overflow: hidden auto;
  padding: 18px;
  border-radius: 10px;
  background: rgba(20, 20, 20, 0.94);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
}

.course-player__playlist::-webkit-scrollbar {
  width: 8px;
}

.course-player__playlist::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.course-player__playlist .player-playlist__list {
  gap: 8px;
}

.course-player__playlist .playlist-item {
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.055);
}

.course-player__playlist .playlist-item:hover,
.course-player__playlist .playlist-item:focus-visible,
.course-player__playlist .playlist-item.is-active {
  background: rgba(255, 255, 255, 0.13);
}

@media (max-width: 960px) {
  .course-player {
    grid-template-columns: 1fr !important;
  }

  .course-player__playlist {
    position: static;
    max-height: none;
  }
}

/* Final override: keyword strips must be horizontally navigable. */
.category-strip-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: -4px 0 8px;
}

.category-strip-controls[hidden] {
  display: none !important;
}

.category-strip-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--text);
  cursor: pointer;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.category-strip-nav:hover,
.category-strip-nav:focus-visible {
  border-color: rgba(229, 9, 20, 0.72);
  background: rgba(229, 9, 20, 0.82);
  transform: translateY(-1px);
}

.category-strip-nav svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.category-strip--scrollable {
  max-width: 100%;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  padding-bottom: 14px !important;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-color: rgba(255, 255, 255, 0.34) transparent !important;
  scrollbar-width: thin !important;
}

.category-strip--scrollable::-webkit-scrollbar {
  display: block !important;
  height: 8px;
}

.category-strip--scrollable::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.category-strip--scrollable::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.category-strip--scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(229, 9, 20, 0.78);
}

/* Netflix-like course player. */
.course-page {
  padding-top: 86px;
}

.course-page .course-hero {
  min-height: clamp(300px, 42vh, 520px);
}

.course-player {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px) !important;
  align-items: start;
  gap: 18px !important;
}

.course-player__stage {
  border-radius: 0 !important;
  background: #000000;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
}

.course-player__stage::before {
  content: "";
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.course-player__stage > .player-modal__video,
.course-player__stage > .player-modal__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none !important;
  min-height: 0 !important;
}

.course-player__playlist {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 110px);
  overflow: hidden auto;
  padding: 18px;
  border-radius: 10px;
  background: rgba(20, 20, 20, 0.94);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
}

.course-player__playlist::-webkit-scrollbar {
  width: 8px;
}

.course-player__playlist::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.course-player__playlist .player-playlist__list {
  gap: 8px;
}

.course-player__playlist .playlist-item {
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.055);
}

.course-player__playlist .playlist-item:hover,
.course-player__playlist .playlist-item:focus-visible,
.course-player__playlist .playlist-item.is-active {
  background: rgba(255, 255, 255, 0.13);
}

@media (max-width: 960px) {
  .course-player {
    grid-template-columns: 1fr !important;
  }

  .course-player__playlist {
    position: static;
    max-height: none;
  }
}

/* Secure access and Netflix-like profile picker. */
.auth-page,
.profile-page {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.35), #141414 42%),
    radial-gradient(circle at 20% 0%, rgba(229, 9, 20, 0.28), transparent 34%),
    #141414;
}

.auth-shell,
.admin-shell,
.profile-shell {
  min-height: 100vh;
  padding: clamp(28px, 5vw, 54px);
}

.auth-shell {
  display: grid;
  align-content: center;
  justify-items: start;
}

.auth-logo {
  display: inline-block;
  margin-bottom: 28px;
  color: #e50914;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 950;
  letter-spacing: -0.06em;
}

.auth-logo--small {
  margin: 0;
  font-size: 2rem;
}

.auth-card,
.admin-panel {
  width: min(100%, 460px);
  padding: clamp(24px, 4vw, 42px);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.76);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.46);
}

.admin-panel {
  width: min(100%, 980px);
  display: grid;
  gap: 22px;
}

.auth-kicker {
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.auth-card h1,
.admin-panel h1,
.profile-picker h1 {
  margin: 10px 0 12px;
  color: var(--text);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.95;
}

.auth-card p,
.admin-panel p {
  color: var(--text-muted);
  line-height: 1.55;
}

.auth-form,
.admin-create-user,
.profile-create {
  display: grid;
  gap: 14px;
}

.auth-form label {
  display: grid;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.86rem;
  font-weight: 700;
}

.auth-form input,
.admin-create-user input,
.profile-create input {
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font: inherit;
  padding: 0 14px;
  outline: none;
}

.auth-form input:focus,
.admin-create-user input:focus,
.profile-create input:focus {
  border-color: rgba(255, 255, 255, 0.52);
  background: rgba(255, 255, 255, 0.14);
}

.auth-form button,
.admin-create-user button,
.profile-create button,
.profile-topbar__actions button {
  min-height: 46px;
  border: 0;
  border-radius: 6px;
  background: var(--brand);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  padding: 0 18px;
}

.auth-muted-link,
.profile-topbar__actions a {
  color: var(--text-muted);
  font-weight: 800;
}

.auth-error {
  margin: 0;
  color: #ff8a8a !important;
  font-weight: 800;
}

.profile-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.profile-topbar__actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.profile-topbar__actions button {
  min-height: 38px;
  background: rgba(255, 255, 255, 0.12);
}

.profile-picker {
  display: grid;
  justify-items: center;
  gap: 26px;
  max-width: 980px;
  margin: 18vh auto 0;
  text-align: center;
}

.profile-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 34px);
}

.profile-card-wrap {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 8px;
}

.profile-card {
  display: grid;
  justify-items: center;
  gap: 14px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  transition: color 180ms ease, transform 180ms ease;
}

.profile-card:hover,
.profile-card:focus-visible {
  color: var(--text);
  transform: translateY(-2px);
}

.profile-avatar {
  display: grid;
  place-items: center;
  width: clamp(120px, 13vw, 180px);
  aspect-ratio: 1;
  border: 4px solid transparent;
  border-radius: 8px;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.38), transparent 18%),
    linear-gradient(135deg, var(--profile-color), #111);
  color: #ffffff;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 950;
}

.profile-card:hover .profile-avatar,
.profile-card:focus-visible .profile-avatar,
.profile-card-wrap.is-selected .profile-avatar {
  border-color: #ffffff;
}

.profile-card strong {
  font-size: clamp(1rem, 2vw, 1.45rem);
  font-weight: 500;
}

.profile-delete {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  text-transform: uppercase;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.profile-delete:hover,
.profile-delete:focus-visible {
  border-color: rgba(229, 9, 20, 0.68);
  background: rgba(229, 9, 20, 0.18);
  color: #ffffff;
  transform: translateY(-1px);
}

.profile-create {
  grid-template-columns: minmax(180px, 300px) auto;
  margin-top: 20px;
}

.admin-create-user {
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  align-items: center;
}

.admin-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
}

.admin-users {
  display: grid;
  gap: 10px;
}

.admin-user-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.admin-user-row div {
  display: grid;
  gap: 3px;
}

.admin-user-row span {
  color: var(--text-muted);
}

@media (max-width: 760px) {
  .profile-create,
  .admin-create-user,
  .admin-user-row {
    grid-template-columns: 1fr;
  }

  .profile-picker {
    margin-top: 8vh;
  }
}

/* Final override: keyword strips must be horizontally navigable. */
.category-strip-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: -4px 0 8px;
}

.category-strip-controls[hidden] {
  display: none !important;
}

.category-strip-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--text);
  cursor: pointer;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.category-strip-nav:hover,
.category-strip-nav:focus-visible {
  border-color: rgba(229, 9, 20, 0.72);
  background: rgba(229, 9, 20, 0.82);
  transform: translateY(-1px);
}

.category-strip-nav svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.category-strip--scrollable {
  max-width: 100%;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  padding-bottom: 14px !important;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-color: rgba(255, 255, 255, 0.34) transparent !important;
  scrollbar-width: thin !important;
}

.category-strip--scrollable::-webkit-scrollbar {
  display: block !important;
  height: 8px;
}

.category-strip--scrollable::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.category-strip--scrollable::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.category-strip--scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(229, 9, 20, 0.78);
}

/* Category keyword strip: desktop-friendly horizontal navigation. */
.category-strip-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: -4px 0 8px;
}

.category-strip-controls[hidden] {
  display: none;
}

.category-strip-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--text);
  cursor: pointer;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.category-strip-nav:hover,
.category-strip-nav:focus-visible {
  border-color: rgba(229, 9, 20, 0.72);
  background: rgba(229, 9, 20, 0.82);
  transform: translateY(-1px);
}

.category-strip-nav svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.category-strip--scrollable {
  max-width: 100%;
  overflow-x: auto !important;
  overflow-y: hidden;
  padding-bottom: 14px !important;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-color: rgba(255, 255, 255, 0.34) transparent;
  scrollbar-width: thin;
}

.category-strip--scrollable::-webkit-scrollbar {
  display: block;
  height: 8px;
}

.category-strip--scrollable::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.category-strip--scrollable::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.category-strip--scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(229, 9, 20, 0.78);
}

/* Search lesson highlights kept last to win over legacy card overrides. */
.catalog-course-card__body .catalog-course-card__lesson-hit {
  margin-top: 8px !important;
  color: #dcfff3 !important;
  font-size: 0.78rem !important;
  font-weight: 800 !important;
  line-height: 1.3 !important;
  background: rgba(46, 229, 157, 0.13) !important;
  border: 1px solid rgba(46, 229, 157, 0.18) !important;
  border-radius: 8px !important;
  padding: 6px 8px !important;
}

.search-results-list--lessons .search-result {
  border-color: rgba(46, 229, 157, 0.16);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.11), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
}

.search-results-list--lessons .search-result:hover {
  border-color: rgba(46, 229, 157, 0.34);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.18), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.09);
}

/* Search lesson highlights kept last to win over legacy card overrides. */
.catalog-course-card__body .catalog-course-card__lesson-hit {
  margin-top: 8px !important;
  color: #dcfff3 !important;
  font-size: 0.78rem !important;
  font-weight: 800 !important;
  line-height: 1.3 !important;
  background: rgba(46, 229, 157, 0.13) !important;
  border: 1px solid rgba(46, 229, 157, 0.18) !important;
  border-radius: 8px !important;
  padding: 6px 8px !important;
}

.search-results-list--lessons .search-result {
  border-color: rgba(46, 229, 157, 0.16);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.11), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
}

.search-results-list--lessons .search-result:hover {
  border-color: rgba(46, 229, 157, 0.34);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.18), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.09);
}

/* Final search lesson highlights */
.catalog-course-card__lesson-hit {
  margin-top: 8px !important;
  color: #dcfff3 !important;
  font-size: 0.78rem !important;
  font-weight: 800 !important;
  line-height: 1.3 !important;
  background: rgba(46, 229, 157, 0.13);
  border: 1px solid rgba(46, 229, 157, 0.18);
  border-radius: 8px;
  padding: 6px 8px;
}

.search-results-list--lessons .search-result {
  border-color: rgba(46, 229, 157, 0.16);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.11), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
}

.search-results-list--lessons .search-result:hover {
  border-color: rgba(46, 229, 157, 0.34);
  background:
    linear-gradient(135deg, rgba(46, 229, 157, 0.18), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.09);
}

/* Final course card hover overlay override */
.catalog-course-card {
  position: relative !important;
  isolation: isolate;
  overflow: hidden !important;
  border: 1px solid rgba(255, 255, 255, 0.06) !important;
  border-radius: 10px !important;
  background: #0f0f0f !important;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.24) !important;
  transform-origin: center bottom;
  transition:
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1),
    box-shadow 220ms ease,
    border-color 220ms ease !important;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible {
  z-index: 30;
  border-color: rgba(255, 255, 255, 0.22) !important;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.62) !important;
  transform: translateY(-8px) scale(1.055) !important;
}

.catalog-course-card__media {
  position: relative !important;
  overflow: hidden !important;
  border-radius: inherit !important;
}

.catalog-course-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.16), transparent 34%),
    linear-gradient(180deg, transparent 35%, rgba(20, 20, 20, 0.36) 62%, rgba(20, 20, 20, 0.84));
  transition: opacity 220ms ease;
}

.catalog-course-card:hover .catalog-course-card__media::after,
.catalog-course-card:focus-visible .catalog-course-card__media::after {
  opacity: 1;
}

.catalog-course-card__media img {
  transform: scale(1);
  transition:
    transform 260ms cubic-bezier(0.2, 0.82, 0.2, 1),
    filter 260ms ease !important;
}

.catalog-course-card:hover .catalog-course-card__media img,
.catalog-course-card:focus-visible .catalog-course-card__media img {
  filter: brightness(0.72) saturate(1.08);
  transform: scale(1.08) translateY(-1.5%);
}

.catalog-course-card__media > .course-progress-line {
  position: absolute !important;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  height: 4px;
  margin: 0 !important;
  border-radius: 0 !important;
  background: rgba(255, 255, 255, 0.14);
}

.catalog-course-card__body {
  position: absolute !important;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 6;
  display: grid !important;
  gap: 7px;
  max-height: 82%;
  padding: 42px 14px 14px !important;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(22, 22, 22, 0), rgba(22, 22, 22, 0.72) 28%, rgba(22, 22, 22, 0.96) 100%);
  backdrop-filter: blur(5px);
  transform: translateY(18px);
  transition:
    opacity 200ms ease,
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1);
  scrollbar-width: none;
}

.catalog-course-card__body::-webkit-scrollbar {
  display: none;
}

.catalog-course-card:hover .catalog-course-card__body,
.catalog-course-card:focus-visible .catalog-course-card__body {
  opacity: 1;
  transform: translateY(0);
}

.catalog-course-card__body h3 {
  display: block !important;
  margin: 0 !important;
  color: #ffffff !important;
  font-size: clamp(0.88rem, 0.88vw, 1.02rem) !important;
  font-weight: 900 !important;
  line-height: 1.18 !important;
  letter-spacing: -0.02em;
  overflow: visible !important;
  text-overflow: unset !important;
  white-space: normal !important;
  -webkit-line-clamp: unset !important;
  line-clamp: unset !important;
}

.catalog-course-card__body p {
  margin: 0 !important;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: 0.76rem !important;
  line-height: 1.35 !important;
}

.catalog-course-card__meta {
  display: flex !important;
  flex-wrap: wrap;
  gap: 6px !important;
  margin-top: 2px !important;
  color: rgba(255, 255, 255, 0.78) !important;
  font-size: 0.72rem !important;
}

.catalog-course-card__meta span {
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
}

.catalog-course-card__body > .course-progress-line {
  margin-top: 4px !important;
}

@media (hover: none) {
  .catalog-course-card__body {
    opacity: 1;
    padding-top: 54px !important;
    transform: translateY(calc(100% - 72px));
  }

  .catalog-course-card:focus-visible .catalog-course-card__body,
  .catalog-course-card:active .catalog-course-card__body {
    transform: translateY(0);
  }
}

/* Netflix-style course cards: clean cover, details only on hover/focus. */
.catalog-course-card {
  position: relative !important;
  isolation: isolate;
  overflow: hidden !important;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px !important;
  background: #0f0f0f !important;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.24);
  transform-origin: center bottom;
  transition:
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1),
    box-shadow 220ms ease,
    border-color 220ms ease,
    filter 220ms ease !important;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible {
  z-index: 30;
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.62);
  transform: translateY(-8px) scale(1.055) !important;
}

.catalog-course-card__media {
  position: relative !important;
  overflow: hidden !important;
  border-radius: inherit;
}

.catalog-course-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.16), transparent 34%),
    linear-gradient(180deg, transparent 35%, rgba(20, 20, 20, 0.36) 62%, rgba(20, 20, 20, 0.84));
  transition: opacity 220ms ease;
}

.catalog-course-card:hover .catalog-course-card__media::after,
.catalog-course-card:focus-visible .catalog-course-card__media::after {
  opacity: 1;
}

.catalog-course-card__media img {
  transform: scale(1);
  transition:
    transform 260ms cubic-bezier(0.2, 0.82, 0.2, 1),
    filter 260ms ease !important;
}

.catalog-course-card:hover .catalog-course-card__media img,
.catalog-course-card:focus-visible .catalog-course-card__media img {
  filter: brightness(0.72) saturate(1.08);
  transform: scale(1.08) translateY(-1.5%);
}

.catalog-course-card__media > .course-progress-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  height: 4px;
  margin: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.14);
}

.catalog-course-card__body {
  position: absolute !important;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 6;
  display: grid;
  gap: 7px;
  max-height: 82%;
  padding: 42px 14px 14px !important;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(22, 22, 22, 0), rgba(22, 22, 22, 0.72) 28%, rgba(22, 22, 22, 0.96) 100%);
  backdrop-filter: blur(5px);
  transform: translateY(18px);
  transition:
    opacity 200ms ease,
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1);
  scrollbar-width: none;
}

.catalog-course-card__body::-webkit-scrollbar {
  display: none;
}

.catalog-course-card:hover .catalog-course-card__body,
.catalog-course-card:focus-visible .catalog-course-card__body {
  opacity: 1;
  transform: translateY(0);
}

.catalog-course-card__body h3 {
  display: block !important;
  margin: 0 !important;
  color: #ffffff !important;
  font-size: clamp(0.88rem, 0.88vw, 1.02rem) !important;
  font-weight: 900 !important;
  line-height: 1.18 !important;
  letter-spacing: -0.02em;
  overflow: visible !important;
  text-overflow: unset !important;
  white-space: normal !important;
  -webkit-line-clamp: unset !important;
  line-clamp: unset !important;
}

.catalog-course-card__body p {
  margin: 0 !important;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: 0.76rem !important;
  line-height: 1.35 !important;
}

.catalog-course-card__meta {
  display: flex !important;
  flex-wrap: wrap;
  gap: 6px !important;
  margin-top: 2px !important;
  color: rgba(255, 255, 255, 0.78) !important;
  font-size: 0.72rem !important;
}

.catalog-course-card__meta span {
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
}

.catalog-course-card__body > .course-progress-line {
  margin-top: 4px;
}

@media (hover: none) {
  .catalog-course-card__body {
    opacity: 1;
    padding-top: 54px !important;
    transform: translateY(calc(100% - 72px));
  }

  .catalog-course-card:focus-visible .catalog-course-card__body,
  .catalog-course-card:active .catalog-course-card__body {
    transform: translateY(0);
  }
}

/* Final nav hover bridge: keeps submenu open while moving the mouse down. */
.nav-submenu {
  top: 100% !important;
  z-index: 200 !important;
  padding: 20px 8px 8px !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.nav-submenu::before {
  content: "";
  position: absolute;
  inset: 12px 0 0;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(18, 18, 18, 0.97);
  box-shadow: var(--shadow);
}

/* Intelligent specialty and search layer */
.specialty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.specialty-grid--home {
  margin-bottom: 18px;
}

.specialty-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background:
    radial-gradient(circle at top right, rgba(229, 9, 20, 0.18), transparent 42%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
}

.specialty-card__main {
  display: block;
  min-height: 210px;
  padding: 20px;
  color: var(--text);
  text-decoration: none;
}

.specialty-card__eyebrow,
.specialty-block__header span {
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.specialty-card h3 {
  margin: 12px 0 10px;
  color: var(--text);
  font-size: 1.55rem;
  line-height: 1;
}

.specialty-card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.45;
}

.specialty-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.specialty-card__meta span,
.specialty-card__chips a {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--text);
  font-size: 0.78rem;
  text-decoration: none;
}

.specialty-card__meta span {
  padding: 6px 10px;
}

.specialty-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 20px 20px;
}

.specialty-card__chips a {
  padding: 7px 10px;
  color: var(--text-soft);
}

.specialty-card:hover {
  border-color: rgba(229, 9, 20, 0.45);
  transform: translateY(-2px);
  transition: border-color 180ms ease, transform 180ms ease;
}

.specialty-sections {
  display: grid;
  gap: 20px;
  margin-top: 18px;
}

.specialty-block {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.specialty-block__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.specialty-block__header h2 {
  margin: 6px 0;
  color: var(--text);
  font-size: 1.8rem;
}

.specialty-block__header p {
  margin: 0;
  color: var(--text-muted);
}

.specialty-block__header a {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.smart-search {
  display: flex;
  gap: 10px;
  width: min(100%, 860px);
  margin-top: 26px;
}

.smart-search input {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  padding: 16px 18px;
}

.smart-search input:focus {
  border-color: rgba(229, 9, 20, 0.8);
  box-shadow: 0 0 0 4px rgba(229, 9, 20, 0.18);
}

.smart-search button {
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: white;
  cursor: pointer;
  font-weight: 900;
  padding: 0 26px;
}

.search-section {
  margin-top: 34px;
}

body:not(.has-search-query) .search-section--results {
  display: none;
}

.search-section h2 {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 1.55rem;
}

.search-results-list {
  display: grid;
  gap: 10px;
}

.search-result {
  display: block;
  padding: 16px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  text-decoration: none;
}

.search-result:hover {
  background: rgba(255, 255, 255, 0.14);
}

.search-result__type {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.search-result strong {
  display: block;
  font-size: 1rem;
}

.search-result p,
.empty-state {
  margin: 6px 0 0;
  color: var(--text-muted);
}

.catalog-course-card__media img,
.catalog-course-card__fallback,
.course-row__thumb img,
.course-row__thumb-fallback {
  position: absolute;
  inset: 0;
}

@media (max-width: 768px) {
  .smart-search {
    flex-direction: column;
  }

  .smart-search button {
    min-height: 52px;
  }

  .specialty-block__header {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Premium category redesign */
body {
  font-family: "Netflix Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(229, 9, 20, 0.18), transparent 26%),
    radial-gradient(circle at 82% 18%, rgba(255, 255, 255, 0.06), transparent 24%),
    #101010;
}

.brand,
.hero-banner__content h1,
.page-header h1,
.section-heading__title,
.category-page-heading h2,
.course-carousel__header h2,
.specialty-card h3 {
  font-family: "Netflix Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  letter-spacing: -0.035em;
}

.page-header--compact {
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-header--compact h1 {
  max-width: 980px;
  font-size: clamp(4rem, 9vw, 8.5rem);
  line-height: 0.86;
}

.page-header--compact p {
  max-width: 760px;
  color: #d6d6d6;
  font-size: 1.04rem;
}

.category-strip {
  gap: 12px;
  padding: 18px 0 24px;
}

.category-chip {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.category-chip:hover,
.category-chip.is-active {
  border-color: rgba(229, 9, 20, 0.85);
  background: #e50914;
}

.catalog-course-card {
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  background: #191919;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible {
  border-color: rgba(255, 255, 255, 0.18);
  background: #242424;
  transform: translateY(-4px);
}

.catalog-course-card__media {
  aspect-ratio: 300 / 427;
  background:
    linear-gradient(135deg, rgba(229, 9, 20, 0.13), transparent),
    #0a0a0a;
}

.catalog-course-card__media img {
  object-fit: cover;
  padding: 0;
  background: #090909;
}

.catalog-course-card__body {
  min-height: 118px;
  padding: 13px 14px 15px;
}

.catalog-course-card__body h3 {
  display: -webkit-box;
  min-height: 2.7em;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 0.93rem;
  font-weight: 800;
}

.catalog-course-card__index {
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.3);
}

.category-carousel-stack {
  display: grid;
  gap: 34px;
  margin-top: 8px;
}

.course-carousel {
  min-width: 0;
}

.course-carousel__header,
.category-page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.course-carousel__header h2,
.category-page-heading h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.55rem, 2.8vw, 2.45rem);
  line-height: 0.98;
}

.course-carousel__header p {
  margin: 7px 0 0;
  color: var(--text-muted);
}

.course-carousel__header a {
  flex: 0 0 auto;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

.course-carousel__viewport {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0, black 4%, black 96%, transparent 100%);
}

.course-carousel__track {
  display: flex;
  gap: 14px;
  width: max-content;
}

.course-carousel__track.is-looping {
  animation: eduflix-marquee 220s linear 3s infinite;
}

.course-carousel:hover .course-carousel__track {
  animation-play-state: paused;
}

.course-carousel .catalog-course-card {
  flex: 0 0 clamp(172px, 14vw, 230px);
}

@keyframes eduflix-marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-50% - 7px));
  }
}

.all-category-courses {
  margin-top: 52px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.category-page-heading span {
  color: var(--brand);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.all-category-courses__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.all-category-courses__list .course-row {
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.07);
}

.course-row__thumb {
  flex-basis: 84px;
  width: 84px;
  height: auto;
  aspect-ratio: 300 / 427;
}

.course-row__thumb img {
  object-fit: cover;
  background: #090909;
}

@media (max-width: 760px) {
  .page-header--compact h1 {
    font-size: 3.5rem;
  }

  .course-carousel__header,
  .category-page-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .course-carousel .catalog-course-card {
    flex-basis: 170px;
  }

  .course-row__thumb {
    flex-basis: 72px;
    width: 72px;
  }
}

/* Performance layer: Netflix feel without rendering the whole catalog at once */
.course-carousel__viewport {
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 8px;
  scroll-behavior: smooth;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
}

.course-carousel__viewport::-webkit-scrollbar {
  display: none;
}

.course-carousel__track,
.course-carousel__track.is-looping {
  animation: none !important;
  will-change: auto;
}

.course-carousel .catalog-course-card {
  scroll-snap-align: start;
}

.catalog-course-card,
.course-row,
.teacher-card,
.specialty-card,
.course-carousel {
  content-visibility: auto;
}

.catalog-course-card {
  contain-intrinsic-size: 300px 300px;
}

.course-row {
  contain-intrinsic-size: 760px 96px;
}

.teacher-card,
.specialty-card {
  contain-intrinsic-size: 280px 360px;
}

.load-more-shell {
  display: flex;
  justify-content: center;
  grid-column: 1 / -1;
  padding: 18px 0 8px;
}

.category-carousel-stack .load-more-shell {
  padding: 4px 0 20px;
}

.load-more-button {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 13px 22px;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.load-more-button:hover,
.load-more-button:focus-visible {
  border-color: rgba(229, 9, 20, 0.7);
  background: rgba(229, 9, 20, 0.86);
  transform: translateY(-1px);
}

.course-carousel__shell {
  position: relative;
}

.carousel-nav {
  position: absolute;
  top: 0;
  bottom: 8px;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  border: 0;
  color: #ffffff;
  cursor: pointer;
  opacity: 0;
  transition: opacity 180ms ease, background 180ms ease;
}

.carousel-nav--prev {
  left: 0;
  background: linear-gradient(90deg, rgba(16, 16, 16, 0.96), rgba(16, 16, 16, 0));
}

.carousel-nav--next {
  right: 0;
  background: linear-gradient(270deg, rgba(16, 16, 16, 0.96), rgba(16, 16, 16, 0));
}

.course-carousel__shell:hover .carousel-nav,
.carousel-nav:focus-visible {
  opacity: 1;
}

.carousel-nav svg {
  width: 42px;
  height: 42px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.55));
}

.carousel-nav:hover {
  background-color: rgba(0, 0, 0, 0.24);
}

@media (max-width: 760px) {
  .carousel-nav {
    width: 42px;
    opacity: 1;
  }

  .carousel-nav svg {
    width: 32px;
    height: 32px;
  }
}

/* Final cover ratio override: iDent course covers are poster-like, close to 300x427. */
.catalog-course-card__media {
  aspect-ratio: 300 / 427 !important;
}

.catalog-course-card__media img {
  object-fit: cover !important;
}

.course-carousel .catalog-course-card {
  flex-basis: clamp(172px, 14vw, 230px) !important;
}

.course-row__thumb {
  flex: 0 0 84px !important;
  width: 84px !important;
  height: auto !important;
  aspect-ratio: 300 / 427 !important;
}

.course-row__thumb img {
  object-fit: cover !important;
}

@media (max-width: 760px) {
  .course-carousel .catalog-course-card {
    flex-basis: 170px !important;
  }

  .course-row__thumb {
    flex-basis: 72px !important;
    width: 72px !important;
  }
}

/* Progress layer */
.course-progress-line {
  position: relative;
  width: 100%;
  height: 4px;
  margin-top: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.course-progress-line span,
.lesson-progress-line span,
.course-progress-panel__bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #e50914 0%, #ff474f 48%, #2ee59d 100%);
  box-shadow: 0 0 14px rgba(229, 9, 20, 0.28);
  transition: width 240ms ease;
}

.catalog-course-card .course-progress-line {
  margin-top: 14px;
}

.course-row .course-progress-line {
  max-width: 420px;
}

.course-progress-panel {
  display: grid;
  gap: 12px;
  margin: -4px 0 16px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background:
    radial-gradient(circle at 12% 0%, rgba(229, 9, 20, 0.22), transparent 34%),
    rgba(255, 255, 255, 0.045);
}

.course-progress-panel__summary {
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.course-progress-panel__bar,
.lesson-progress-line {
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.course-progress-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.course-progress-button {
  appearance: none;
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 800;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.08);
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.course-progress-button:hover,
.course-progress-button:focus-visible {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.course-progress-button--danger {
  color: #ffb7bb;
  border-color: rgba(229, 9, 20, 0.34);
  background: rgba(229, 9, 20, 0.14);
}

.playlist-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid transparent;
}

.playlist-item.is-active {
  border-color: rgba(255, 255, 255, 0.14);
}

.playlist-item.is-completed {
  border-color: rgba(46, 229, 157, 0.18);
  background:
    linear-gradient(90deg, rgba(46, 229, 157, 0.12), rgba(255, 255, 255, 0.035)),
    #2f2f2f;
}

.playlist-item__status {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 3px;
  border: 2px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.18);
}

.playlist-item.is-started .playlist-item__status,
.playlist-item.is-active .playlist-item__status {
  border-color: rgba(229, 9, 20, 0.92);
  background: rgba(229, 9, 20, 0.86);
}

.playlist-item.is-completed .playlist-item__status {
  border-color: rgba(46, 229, 157, 0.95);
  background: #2ee59d;
  box-shadow: 0 0 18px rgba(46, 229, 157, 0.42);
}

.playlist-item.is-completed .playlist-item__status::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 1px;
  width: 4px;
  height: 7px;
  border: solid #07130e;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.playlist-item__body {
  min-width: 0;
  flex: 1;
}

.playlist-item__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.playlist-item__state {
  flex: 0 0 auto;
  padding: 3px 7px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.68rem;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.08);
}

.playlist-item.is-completed .playlist-item__state {
  color: #06110c;
  background: #2ee59d;
}

.lesson-progress-line {
  margin-top: 10px;
  height: 3px;
}

/* Login, stable submenu, and continue watching */
.auth-locked {
  min-height: 100vh;
  overflow: hidden;
  background: #050505;
}

.auth-locked .app-shell,
.auth-locked .footer {
  opacity: 0;
  pointer-events: none;
  user-select: none;
}

.login-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--text);
}

.login-gate__backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.52)),
    radial-gradient(circle at 78% 18%, rgba(229, 9, 20, 0.42), transparent 28%),
    url("https://images.unsplash.com/photo-1606811971618-4486d14f3f99?auto=format&fit=crop&q=80&w=1800") center/cover;
  filter: saturate(1.12);
}

.login-gate__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 1120px);
}

.login-gate__brand {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--brand);
  font-family: "Netflix Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: clamp(2.1rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.08em;
}

.login-card {
  display: grid;
  gap: 16px;
  width: min(100%, 440px);
  padding: clamp(24px, 5vw, 42px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(10, 10, 10, 0.82);
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(18px);
}

.login-card__eyebrow {
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-card h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  line-height: 0.92;
}

.login-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.login-card label {
  display: grid;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.86rem;
  font-weight: 800;
}

.login-card input {
  width: 100%;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9px;
  color: var(--text);
  font: inherit;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.login-card input:focus {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
}

.login-card__button {
  margin-top: 6px;
  padding: 14px 16px;
  border: 0;
  border-radius: 9px;
  color: #ffffff;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  background: var(--brand);
  transition: transform 180ms ease, background-color 180ms ease;
}

.login-card__button:hover,
.login-card__button:focus-visible {
  background: #f21a25;
  transform: translateY(-1px);
}

.login-card__error {
  padding: 10px 12px;
  border-radius: 8px;
  color: #ffd5d8;
  font-size: 0.86rem;
  font-weight: 800;
  background: rgba(229, 9, 20, 0.2);
}

.login-card__hint {
  font-size: 0.78rem;
}

.profile-button__initial {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: #ffffff;
  font-weight: 900;
}

.nav-submenu {
  top: 100% !important;
  z-index: 200;
  padding: 20px 8px 8px !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.nav-submenu::before {
  content: "";
  position: absolute;
  inset: 12px 0 0;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(18, 18, 18, 0.97);
  box-shadow: var(--shadow);
}

.continue-section {
  margin-bottom: 42px;
}

.continue-watching-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.continue-card {
  display: grid;
  overflow: hidden;
  border-radius: 12px;
  background: linear-gradient(180deg, #2a2a2a, #191919);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.35);
  transition: transform 180ms ease, background-color 180ms ease;
}

.continue-card:hover,
.continue-card:focus-visible {
  transform: translateY(-3px);
}

.continue-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #080808;
}

.continue-card__media img,
.continue-card__fallback {
  width: 100%;
  height: 100%;
}

.continue-card__media img {
  display: block;
  object-fit: cover;
  filter: brightness(0.78);
}

.continue-card__fallback {
  display: grid;
  place-items: center;
  color: rgba(229, 9, 20, 0.58);
}

.continue-card__icon {
  width: 34px;
  height: 34px;
}

.continue-card__play {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  color: #000000;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.continue-card__play-icon {
  width: 17px;
  height: 17px;
  fill: currentColor;
  stroke: none;
}

.continue-card__body {
  padding: 14px;
}

.continue-card__body span {
  color: var(--green);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.continue-card__body h3 {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.3;
}

.continue-card__body p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

@media (max-width: 720px) {
  .login-card {
    width: 100%;
  }

  .continue-watching-grid {
    grid-template-columns: 1fr;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

::selection {
  color: var(--text);
  background: var(--brand);
}

body.overlay-open {
  overflow: hidden;
}

body,
button,
input,
a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  background: transparent;
  padding: 0;
}

a {
  text-decoration: none;
}

img {
  max-width: 100%;
}

svg {
  display: block;
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app-shell {
  min-height: 100vh;
}

.top-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(16px, 4vw, 48px);
  transition: background-color 220ms ease;
}

.top-nav.is-scrolled {
  background: var(--bg);
}

.top-nav__left,
.top-nav__right,
.nav-links,
.hero-banner__actions,
.teacher-card__actions,
.teacher-modal__hero-meta,
.teacher-modal__actions,
.footer__links {
  display: flex;
  align-items: center;
}

.top-nav__left {
  gap: 28px;
}

.top-nav__right {
  gap: 18px;
}

.brand {
  color: var(--brand);
  font-size: clamp(1.85rem, 2vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-links {
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.96rem;
  cursor: pointer;
  transition: color 180ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
}

.icon-button,
.profile-button,
.teacher-modal__close,
.player-modal__close,
.teacher-card__action,
.course-row__thumb-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-button,
.profile-button {
  width: 36px;
  height: 36px;
  cursor: pointer;
}

.icon-button svg,
.profile-button svg {
  width: 20px;
  height: 20px;
}

.profile-button {
  border-radius: 6px;
  background: var(--blue);
}

.hero-banner {
  position: relative;
  height: min(95vh, 900px);
  min-height: 620px;
}

.hero-banner__media,
.hero-banner__media img,
.hero-banner__overlay,
.teacher-modal__hero img,
.teacher-modal__hero-overlay,
.teacher-card__overlay,
.teacher-card__media::after,
.course-row__thumb::after {
  position: absolute;
  inset: 0;
}

.hero-banner__media {
  overflow: hidden;
}

.hero-banner__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5);
}

.hero-banner__overlay--left {
  background: linear-gradient(90deg, rgba(20, 20, 20, 0.84) 0%, rgba(20, 20, 20, 0.42) 38%, transparent 72%);
}

.hero-banner__overlay--bottom {
  background: linear-gradient(180deg, transparent 55%, rgba(20, 20, 20, 0.88) 82%, var(--bg) 100%);
}

.hero-banner__content {
  position: absolute;
  left: clamp(16px, 4vw, 48px);
  bottom: 15%;
  z-index: 1;
  max-width: min(680px, calc(100% - 32px));
}

.hero-banner__badge {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-banner h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(3.3rem, 8vw, 5.8rem);
  font-weight: 800;
  line-height: 0.95;
}

.hero-banner__summary {
  margin: 18px 0 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 2vw, 1.35rem);
  line-height: 1.6;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-banner__actions {
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    transform 180ms ease,
    opacity 180ms ease;
}

.hero-button:hover,
.hero-button:focus-visible {
  transform: translateY(-1px);
}

.hero-button svg {
  width: 20px;
  height: 20px;
}

.hero-button--primary {
  background: #ffffff;
  color: #000000;
}

.hero-button--primary svg {
  fill: currentColor;
  stroke: none;
}

.hero-button--primary:hover,
.hero-button--primary:focus-visible {
  background: #e6e6e6;
}

.hero-button--secondary {
  background: rgba(109, 109, 110, 0.7);
  color: var(--text);
  backdrop-filter: blur(14px);
}

.hero-button--secondary:hover,
.hero-button--secondary:focus-visible {
  background: rgba(109, 109, 110, 0.84);
}

.hero-button--small {
  min-height: 44px;
  padding-inline: 18px;
}

.hero-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.main-content {
  position: relative;
  z-index: 2;
  margin-top: -96px;
  padding: 0 0 90px;
}

.categories-section,
.teachers-section,
.author-page {
  padding: 0 clamp(16px, 4vw, 48px);
}

.categories-section {
  margin-bottom: 44px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading__title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
}

.section-heading__icon {
  color: var(--brand);
}

.section-heading__icon svg {
  width: 18px;
  height: 18px;
}

.section-heading__summary {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.category-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 0 16px;
  scrollbar-width: none;
}

.category-strip::-webkit-scrollbar {
  display: none;
}

.category-chip,
.keyword-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.12);
  transition:
    background-color 180ms ease,
    transform 180ms ease;
}

.category-chip:hover,
.category-chip:focus-visible,
.keyword-pill:hover,
.keyword-pill:focus-visible,
.category-chip.is-active {
  background: var(--brand);
  transform: translateY(-1px);
}

.category-chip strong {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.76rem;
}

.category-courses-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.catalog-course-card {
  overflow: hidden;
  border-radius: 6px;
  text-align: left;
  cursor: pointer;
  background: #252525;
  transition:
    background-color 180ms ease,
    transform 180ms ease;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible {
  background: #333333;
  transform: translateY(-2px);
}

.catalog-course-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #101010;
}

.catalog-course-card__media img,
.catalog-course-card__fallback {
  width: 100%;
  height: 100%;
}

.catalog-course-card__media img {
  display: block;
  object-fit: cover;
}

.catalog-course-card__fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(229, 9, 20, 0.58);
}

.catalog-course-card__fallback-icon {
  width: 34px;
  height: 34px;
}

.catalog-course-card__index {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  color: #000000;
  font-size: 0.82rem;
  font-weight: 800;
  background: #ffffff;
}

.catalog-course-card__body {
  padding: 12px 14px 14px;
}

.catalog-course-card__body h3 {
  margin: 0;
  color: var(--text);
  font-size: 0.96rem;
  line-height: 1.35;
}

.catalog-course-card__body p,
.catalog-course-card__meta {
  color: var(--text-muted);
}

.catalog-course-card__body p {
  margin: 6px 0 0;
  font-size: 0.82rem;
}

.catalog-course-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
  font-size: 0.78rem;
}

.teachers-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.teacher-card {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 220ms ease, z-index 220ms ease;
}

.teacher-card:hover,
.teacher-card:focus-visible {
  z-index: 3;
  transform: scale(1.05);
}

.teacher-card__media {
  position: relative;
  aspect-ratio: 2 / 3;
  background:
    radial-gradient(circle at top left, rgba(229, 9, 20, 0.3), transparent 32%),
    linear-gradient(180deg, #313131, #191919);
}

.teacher-card__media img,
.course-row__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.teacher-card__media::after {
  content: "";
  background: linear-gradient(180deg, transparent 28%, rgba(0, 0, 0, 0.12) 56%, rgba(0, 0, 0, 0.84) 100%);
  transition: background 180ms ease;
}

.teacher-card__fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.teacher-card__overlay {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
  background: linear-gradient(180deg, transparent 25%, rgba(0, 0, 0, 0.82) 100%);
  opacity: 0;
  transition: opacity 220ms ease;
}

.teacher-card:hover .teacher-card__overlay,
.teacher-card:focus-visible .teacher-card__overlay {
  opacity: 1;
}

.teacher-card__name {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
}

.teacher-card__specialty {
  margin: 4px 0 0;
  color: #d1d5db;
  font-size: 0.76rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.teacher-card__actions {
  gap: 8px;
  margin-top: 12px;
}

.teacher-card__action {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 999px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.28);
}

.teacher-card__action--filled {
  background: #ffffff;
  color: #000000;
}

.teacher-card__action-icon {
  width: 14px;
  height: 14px;
}

.teacher-card__action--filled .teacher-card__action-icon {
  fill: currentColor;
  stroke: none;
}

.teacher-modal,
.player-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
}

.player-modal {
  z-index: 140;
}

.teacher-modal[hidden],
.player-modal[hidden],
.hero-banner[hidden],
.categories-section[hidden],
.teachers-section[hidden],
.author-page[hidden] {
  display: none !important;
}

.author-page {
  padding-top: 96px;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  margin-bottom: 18px;
  color: var(--text);
  cursor: pointer;
}

.access-notice-stack {
  position: relative;
  z-index: 32;
  display: grid;
  gap: 10px;
  width: min(1100px, calc(100% - 32px));
  margin: 92px auto -46px;
}

.access-notice {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
}

.access-notice strong {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.access-notice span {
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.5;
}

.access-notice--info {
  background: rgba(42, 76, 155, 0.32);
}

.access-notice--warning {
  background: rgba(155, 110, 42, 0.32);
}

.access-notice--error {
  background: rgba(155, 42, 42, 0.36);
}

.course-issue-card {
  margin: 16px 0 18px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(34, 34, 34, 0.9), rgba(19, 19, 19, 0.96));
}

.course-issue-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.course-issue-card__head strong {
  display: block;
  color: var(--text);
  font-size: 0.96rem;
}

.course-issue-card__head p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.course-issue-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.course-issue-form textarea {
  width: 100%;
  min-height: 112px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  resize: vertical;
}

.course-issue-feedback {
  margin: 12px 0 0;
  font-size: 0.84rem;
  line-height: 1.45;
}

.course-issue-feedback.is-success {
  color: #8ce4a8;
}

.course-issue-feedback.is-error {
  color: #ff9b9b;
}

.admin-console-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(120, 120, 120, 0.16), transparent 32%),
    linear-gradient(180deg, #111111, #080808 62%);
}

.admin-console {
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 70px;
}

.admin-console__topbar,
.admin-console__topbar-actions,
.panel-field-grid,
.panel-switches,
.panel-form-actions,
.panel-user-card__head,
.panel-ticket__head,
.panel-user-meta,
.admin-console__stats,
.admin-console__grid {
  display: flex;
}

.admin-console__topbar {
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.admin-console__topbar-actions {
  align-items: center;
  gap: 12px;
}

.admin-console__topbar-actions a,
.admin-console__topbar-actions button {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

.admin-console__shell {
  display: grid;
  gap: 22px;
}

.admin-console__hero,
.admin-console__card,
.panel-stat,
.panel-user-card,
.panel-ticket {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(17, 17, 17, 0.92);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.28);
}

.admin-console__hero,
.admin-console__card {
  border-radius: 24px;
}

.admin-console__hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.8fr);
  gap: 22px;
  padding: 28px;
}

.admin-console__hero h1,
.admin-console__card h2 {
  margin: 8px 0 0;
}

.admin-console__hero p {
  margin: 12px 0 0;
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.6;
}

.admin-console__hero-note {
  align-self: center;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(229, 9, 20, 0.18), rgba(61, 61, 61, 0.32));
}

.admin-console__hero-note strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.admin-console__hero-note span {
  color: var(--text-soft);
  line-height: 1.55;
}

.admin-console__stats {
  flex-wrap: wrap;
  gap: 14px;
}

.panel-stat {
  flex: 1 1 160px;
  min-height: 118px;
  padding: 18px 20px;
  border-radius: 22px;
}

.panel-stat span {
  display: block;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.panel-stat strong {
  display: block;
  margin-top: 14px;
  font-size: 2rem;
}

.admin-console__grid {
  gap: 20px;
  align-items: flex-start;
}

.admin-console__grid > * {
  flex: 1 1 0;
}

.admin-console__card {
  padding: 24px;
}

.admin-console__card--users {
  padding-bottom: 10px;
}

.admin-console__card-head {
  margin-bottom: 18px;
}

.panel-form,
.panel-user-list,
.panel-ticket-list {
  display: grid;
  gap: 14px;
}

.panel-field-grid {
  flex-wrap: wrap;
  gap: 14px;
}

.panel-field-grid label {
  display: grid;
  gap: 8px;
  flex: 1 1 220px;
}

.panel-field-grid__full {
  flex-basis: 100%;
}

.panel-field-grid span,
.panel-switches label,
.panel-ticket__meta {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.panel-field-grid input,
.panel-form textarea,
.panel-form select {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.panel-form textarea {
  min-height: 104px;
  resize: vertical;
}

.panel-switches {
  flex-wrap: wrap;
  gap: 14px;
}

.panel-switches label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
}

.panel-form-actions {
  gap: 12px;
  flex-wrap: wrap;
}

.panel-user-card,
.panel-ticket {
  padding: 18px;
  border-radius: 20px;
}

.panel-user-card__head,
.panel-ticket__head {
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.panel-user-card__head h3,
.panel-ticket__head strong {
  margin: 0;
}

.panel-user-card__head p,
.panel-ticket__head p,
.panel-ticket__message {
  margin: 6px 0 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.panel-user-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.panel-user-meta {
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 14px 0 18px;
}

.panel-user-meta span,
.panel-ticket__meta span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
}

.panel-ticket__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
}

.panel-device-block {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.panel-device-block strong {
  font-size: 0.9rem;
}

.panel-device-list {
  display: grid;
  gap: 10px;
}

.panel-device-item,
.panel-device-list__empty {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 0.82rem;
}

.panel-device-item strong {
  color: var(--text);
}

.panel-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel-badge--active,
.panel-badge--lifetime {
  background: rgba(22, 155, 88, 0.18);
  color: #8ce4a8;
}

.panel-badge--expired,
.panel-badge--blocked {
  background: rgba(229, 9, 20, 0.16);
  color: #ffb0b5;
}

.panel-badge--device,
.panel-badge--open,
.panel-badge--in_progress {
  background: rgba(61, 112, 255, 0.16);
  color: #a8c6ff;
}

.panel-badge--resolved {
  background: rgba(107, 107, 107, 0.22);
  color: #e3e3e3;
}

@media (max-width: 980px) {
  .admin-console__hero,
  .admin-console__grid {
    grid-template-columns: 1fr;
    display: grid;
  }
}

@media (max-width: 720px) {
  .access-notice-stack {
    width: calc(100% - 24px);
    margin-top: 86px;
  }

  .course-issue-card__head,
  .admin-console__topbar,
  .panel-user-card__head,
  .panel-ticket__head {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-console {
    width: calc(100% - 20px);
    padding-top: 18px;
  }

  .panel-user-card__badges {
    justify-content: flex-start;
  }
}

.back-button svg {
  width: 20px;
  height: 20px;
}

.author-page__hero {
  position: relative;
  min-height: 460px;
  overflow: hidden;
  border-radius: 8px;
  background:
    radial-gradient(circle at top left, rgba(229, 9, 20, 0.26), transparent 28%),
    linear-gradient(180deg, #2b2b2b, #111111);
}

.author-page__hero img,
.author-page__hero-overlay {
  position: absolute;
  inset: 0;
}

.author-page__hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.58);
}

.author-page__hero-overlay {
  background:
    linear-gradient(90deg, rgba(20, 20, 20, 0.88) 0%, rgba(20, 20, 20, 0.28) 58%, transparent 100%),
    linear-gradient(180deg, transparent 40%, #141414 100%);
}

.author-page__hero-copy {
  position: absolute;
  left: clamp(20px, 4vw, 44px);
  right: clamp(20px, 4vw, 44px);
  bottom: clamp(22px, 5vw, 48px);
  max-width: 760px;
}

.author-page__hero-copy h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1;
}

.author-page__hero-copy p {
  margin: 18px 0 0;
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.65;
}

.author-page__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.author-stat {
  min-width: 120px;
  padding: 12px 14px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.44);
}

.author-stat span,
.author-stat strong {
  display: block;
}

.author-stat span {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.author-stat strong {
  margin-top: 4px;
  font-size: 1.1rem;
}

.author-page__content {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  margin-top: 28px;
}

.author-page__profile {
  align-self: start;
}

.author-page__profile img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  background: #242424;
}

.author-page__profile h3 {
  margin: 18px 0 8px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.45;
}

.author-page__profile p,
.author-page__profile a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.author-page__profile p {
  margin: 0 0 14px;
}

.author-page__profile a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.author-page__main h3 {
  margin: 26px 0 18px;
  color: var(--text);
  font-size: 1.6rem;
}

.author-page__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.keyword-pill--static {
  cursor: default;
}

.keyword-pill--static:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: none;
}

.author-page__courses {
  display: grid;
  gap: 14px;
}

.teacher-modal__backdrop,
.player-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
}

.teacher-modal__panel,
.player-modal__panel {
  position: relative;
  z-index: 1;
  width: min(100% - 32px, 1000px);
  max-height: calc(100vh - 32px);
  margin: 16px auto;
  overflow: hidden auto;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
}

.player-modal__panel {
  width: min(100% - 32px, 1180px);
}

.teacher-modal__close,
.player-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.65);
  cursor: pointer;
}

.teacher-modal__close svg,
.player-modal__close svg {
  width: 22px;
  height: 22px;
}

.teacher-modal__hero {
  position: relative;
  height: 420px;
  background:
    radial-gradient(circle at top left, rgba(229, 9, 20, 0.26), transparent 28%),
    linear-gradient(180deg, #353535, #161616);
}

.teacher-modal__hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.75);
}

.teacher-modal__hero-overlay {
  background:
    linear-gradient(180deg, transparent 8%, rgba(24, 24, 24, 0.16) 54%, var(--surface) 100%),
    linear-gradient(90deg, rgba(24, 24, 24, 0.56) 0%, rgba(24, 24, 24, 0.16) 50%, transparent 100%);
}

.teacher-modal__hero-copy {
  position: absolute;
  left: 32px;
  right: 88px;
  bottom: 28px;
}

.teacher-modal__hero-copy h2 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1;
}

.teacher-modal__hero-meta {
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  font-weight: 700;
}

.teacher-modal__relevance {
  color: var(--green);
}

.quality-pill {
  padding: 2px 6px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.7rem;
}

.teacher-modal__body {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(220px, 0.95fr);
  gap: 32px;
  padding: 32px;
}

.teacher-modal__bio,
.player-modal__summary {
  margin: 0;
  color: var(--text-soft);
  font-size: 1.02rem;
  line-height: 1.7;
}

.teacher-modal__actions {
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.teacher-courses {
  margin-top: 36px;
}

.teacher-courses h3,
.player-playlist h4 {
  margin: 0 0 20px;
  color: var(--text);
  font-size: 1.65rem;
  font-weight: 700;
}

.teacher-courses__list,
.player-playlist__list {
  display: grid;
  gap: 14px;
}

.course-row {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 16px;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  background: #2f2f2f;
  transition: background-color 180ms ease, transform 180ms ease;
}

.course-row:hover,
.course-row:focus-visible,
.playlist-item:hover,
.playlist-item:focus-visible,
.playlist-item.is-active {
  background: #3d3d3d;
}

.course-row__index {
  flex: 0 0 18px;
  color: #8c8c8c;
  font-size: 1.05rem;
  font-weight: 700;
}

.course-row__thumb {
  position: relative;
  flex: 0 0 96px;
  width: 96px;
  height: 56px;
  overflow: hidden;
  border-radius: 6px;
  background: var(--surface-strong);
}

.course-row__thumb::after {
  content: "";
  background: rgba(0, 0, 0, 0.18);
}

.course-row__thumb-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: rgba(229, 9, 20, 0.55);
}

.course-row__thumb-icon {
  width: 26px;
  height: 26px;
}

.course-row__thumb-play {
  position: absolute;
  inset: 0;
  z-index: 1;
  color: var(--text);
  opacity: 0;
  transition: opacity 180ms ease;
}

.course-row:hover .course-row__thumb-play,
.course-row:focus-visible .course-row__thumb-play {
  opacity: 1;
}

.course-row__thumb-play-icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
  stroke: none;
}

.course-row__content {
  min-width: 0;
  flex: 1;
}

.course-row__title-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.course-row__title-line h4 {
  margin: 0;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.35;
}

.course-row__title-line span,
.course-row__content p,
.muted-label,
.teacher-modal__stat-line,
.playlist-item__meta,
.footer {
  color: var(--text-muted);
}

.course-row__title-line span {
  flex: 0 0 auto;
  font-size: 0.78rem;
  font-weight: 600;
}

.course-row__content p {
  margin: 6px 0 0;
  font-size: 0.82rem;
  line-height: 1.45;
}

.course-row__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.course-row__keywords span {
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
}

.teacher-modal__aside {
  display: grid;
  gap: 16px;
  align-content: start;
  font-size: 0.95rem;
  line-height: 1.65;
}

.teacher-modal__stats {
  display: grid;
  gap: 8px;
}

.player-modal__video-shell {
  position: relative;
  background: #000000;
}

.player-modal__video,
.player-modal__frame {
  display: block;
  width: 100%;
  max-height: 62vh;
  min-height: 280px;
  background: #000000;
}

.player-modal__frame {
  height: 62vh;
  border: 0;
}

.player-modal__video[hidden],
.player-modal__frame[hidden] {
  display: none;
}

.player-modal__notice {
  position: absolute;
  inset: auto 20px 20px;
  padding: 14px 16px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: var(--text-soft);
}

.player-modal__meta {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 24px 12px;
}

.player-modal__eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.player-modal__meta h3 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 800;
}

.player-modal__link {
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.player-playlist {
  padding: 12px 24px 24px;
}

.playlist-item {
  width: 100%;
  padding: 14px 16px;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  background: var(--surface-soft);
  transition: background-color 180ms ease;
}

.playlist-item__title {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
}

.playlist-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 8px;
  font-size: 0.8rem;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: var(--text-muted);
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
}

.empty-state--modal {
  padding-inline: 20px;
}

.footer {
  padding: 40px 16px 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.9rem;
}

.footer p {
  margin: 0;
}

.footer__links {
  justify-content: center;
  gap: 22px;
  margin-top: 20px;
  flex-wrap: wrap;
  font-size: 0.84rem;
}

.noscript-warning {
  padding: 14px;
  text-align: center;
  background: var(--brand);
}

@media (min-width: 640px) {
  .teachers-grid,
  .category-courses-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .teachers-grid,
  .category-courses-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .teachers-grid,
  .category-courses-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .teacher-modal__body {
    grid-template-columns: 1fr;
  }

  .author-page__content {
    grid-template-columns: 1fr;
  }

  .author-page__profile {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 18px;
  }

  .player-modal__meta {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .top-nav {
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .nav-links {
    display: none;
  }

  .top-nav__left {
    gap: 0;
  }

  .top-nav__right {
    gap: 14px;
  }

  .hero-banner {
    min-height: 540px;
  }

  .hero-banner__content {
    left: 16px;
    right: 16px;
    max-width: none;
  }

  .hero-banner__overlay--left {
    background: linear-gradient(180deg, rgba(20, 20, 20, 0.28) 0%, rgba(20, 20, 20, 0.22) 42%, rgba(20, 20, 20, 0.92) 100%);
  }

  .main-content {
    margin-top: -70px;
  }

  .author-page {
    padding-top: 84px;
  }

  .author-page__hero {
    min-height: 380px;
  }

  .teacher-modal__panel,
  .player-modal__panel {
    width: calc(100% - 16px);
    max-height: calc(100vh - 16px);
    margin: 8px auto;
  }

  .teacher-modal__hero {
    height: 300px;
  }

  .teacher-modal__hero-copy {
    left: 20px;
    right: 64px;
    bottom: 20px;
  }

  .teacher-modal__body,
  .player-modal__meta,
  .player-playlist {
    padding-inline: 20px;
  }

  .course-row {
    gap: 12px;
    padding: 14px;
  }

  .course-row__thumb {
    flex-basis: 84px;
    width: 84px;
    height: 50px;
  }

  .course-row__title-line {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .teachers-grid {
    gap: 12px;
  }

  .teacher-card__overlay {
    opacity: 1;
    padding: 12px;
    background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.74) 100%);
  }

  .teacher-card__actions {
    margin-top: 10px;
  }

  .hero-button {
    width: 100%;
  }

  .hero-banner__actions {
    align-items: stretch;
  }

  .course-row {
    align-items: start;
  }

  .course-row__index {
    padding-top: 16px;
  }

  .author-page__profile {
    display: block;
  }

  .author-page__profile img {
    max-width: 180px;
  }

  .footer__links {
    gap: 14px;
  }
}

/* Final course card hover overlay override */
.catalog-course-card {
  position: relative !important;
  isolation: isolate;
  overflow: hidden !important;
  border: 1px solid rgba(255, 255, 255, 0.06) !important;
  border-radius: 10px !important;
  background: #0f0f0f !important;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.24) !important;
  transform-origin: center bottom;
  transition:
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1),
    box-shadow 220ms ease,
    border-color 220ms ease !important;
}

.catalog-course-card:hover,
.catalog-course-card:focus-visible {
  z-index: 30;
  border-color: rgba(255, 255, 255, 0.22) !important;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.62) !important;
  transform: translateY(-8px) scale(1.055) !important;
}

.catalog-course-card__media {
  position: relative !important;
  overflow: hidden !important;
  border-radius: inherit !important;
}

.catalog-course-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.16), transparent 34%),
    linear-gradient(180deg, transparent 35%, rgba(20, 20, 20, 0.36) 62%, rgba(20, 20, 20, 0.84));
  transition: opacity 220ms ease;
}

.catalog-course-card:hover .catalog-course-card__media::after,
.catalog-course-card:focus-visible .catalog-course-card__media::after {
  opacity: 1;
}

.catalog-course-card__media img {
  transform: scale(1);
  transition:
    transform 260ms cubic-bezier(0.2, 0.82, 0.2, 1),
    filter 260ms ease !important;
}

.catalog-course-card:hover .catalog-course-card__media img,
.catalog-course-card:focus-visible .catalog-course-card__media img {
  filter: brightness(0.72) saturate(1.08);
  transform: scale(1.08) translateY(-1.5%);
}

.catalog-course-card__media > .course-progress-line {
  position: absolute !important;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  height: 4px;
  margin: 0 !important;
  border-radius: 0 !important;
  background: rgba(255, 255, 255, 0.14);
}

.catalog-course-card__body {
  position: absolute !important;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 6;
  display: grid !important;
  gap: 7px;
  max-height: 82%;
  padding: 42px 14px 14px !important;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(22, 22, 22, 0), rgba(22, 22, 22, 0.72) 28%, rgba(22, 22, 22, 0.96) 100%);
  backdrop-filter: blur(5px);
  transform: translateY(18px);
  transition:
    opacity 200ms ease,
    transform 220ms cubic-bezier(0.2, 0.82, 0.2, 1);
  scrollbar-width: none;
}

.catalog-course-card__body::-webkit-scrollbar {
  display: none;
}

.catalog-course-card:hover .catalog-course-card__body,
.catalog-course-card:focus-visible .catalog-course-card__body {
  opacity: 1;
  transform: translateY(0);
}

.catalog-course-card__body h3 {
  display: block !important;
  margin: 0 !important;
  color: #ffffff !important;
  font-size: clamp(0.88rem, 0.88vw, 1.02rem) !important;
  font-weight: 900 !important;
  line-height: 1.18 !important;
  letter-spacing: -0.02em;
  overflow: visible !important;
  text-overflow: unset !important;
  white-space: normal !important;
  -webkit-line-clamp: unset !important;
  line-clamp: unset !important;
}

.catalog-course-card__body p {
  margin: 0 !important;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: 0.76rem !important;
  line-height: 1.35 !important;
}

.catalog-course-card__meta {
  display: flex !important;
  flex-wrap: wrap;
  gap: 6px !important;
  margin-top: 2px !important;
  color: rgba(255, 255, 255, 0.78) !important;
  font-size: 0.72rem !important;
}

.catalog-course-card__meta span {
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
}

.catalog-course-card__body > .course-progress-line {
  margin-top: 4px !important;
}

@media (hover: none) {
  .catalog-course-card__body {
    opacity: 1;
    padding-top: 54px !important;
    transform: translateY(calc(100% - 72px));
  }

  .catalog-course-card:focus-visible .catalog-course-card__body,
  .catalog-course-card:active .catalog-course-card__body {
    transform: translateY(0);
  }
}

/* Final overrides for the multi-page version */
.category-strip-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: -4px 0 8px;
}

.category-strip-controls[hidden] {
  display: none !important;
}

.category-strip-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: var(--text);
  cursor: pointer;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.category-strip-nav:hover,
.category-strip-nav:focus-visible {
  border-color: rgba(229, 9, 20, 0.72);
  background: rgba(229, 9, 20, 0.82);
  transform: translateY(-1px);
}

.category-strip-nav svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.category-strip--scrollable {
  max-width: 100%;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  padding-bottom: 14px !important;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-color: rgba(255, 255, 255, 0.34) transparent !important;
  scrollbar-width: thin !important;
}

.category-strip--scrollable::-webkit-scrollbar {
  display: block !important;
  height: 8px;
}

.category-strip--scrollable::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.category-strip--scrollable::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.category-strip--scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(229, 9, 20, 0.78);
}

.brand {
  font-size: 2rem;
  letter-spacing: 0;
}

.nav-menu {
  position: relative;
}

.nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(18, 18, 18, 0.96);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-menu:hover .nav-submenu,
.nav-menu:focus-within .nav-submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-submenu a {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.nav-submenu a:hover,
.nav-submenu a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.section-link {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 700;
}

.page-main {
  padding: 112px clamp(16px, 4vw, 48px) 90px;
}

.page-header {
  margin-bottom: 28px;
}

.page-header--compact {
  margin-bottom: 18px;
}

.page-header h1 {
  margin: 0;
  color: var(--text);
  font-size: 4.5rem;
  line-height: 1;
}

.page-header p {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.category-strip--wrap {
  flex-wrap: wrap;
  overflow: visible;
  padding-bottom: 0;
}

.category-courses-grid--page {
  margin-top: 18px;
}

.catalog-course-card,
.teacher-card {
  display: block;
}

.author-page__hero-copy h1,
.author-page__hero-copy h2 {
  margin: 0;
  color: var(--text);
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1;
}

.course-hero {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: 8px;
  background: #101010;
}

.course-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(20, 20, 20, 0.9), rgba(20, 20, 20, 0.48), transparent),
    linear-gradient(180deg, transparent 45%, rgba(20, 20, 20, 0.92));
}

.course-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.72);
}

.course-hero__copy {
  position: absolute;
  left: clamp(20px, 4vw, 44px);
  right: clamp(20px, 4vw, 44px);
  bottom: clamp(22px, 5vw, 44px);
  z-index: 1;
  max-width: 850px;
}

.course-hero__copy h1 {
  margin: 0;
  color: var(--text);
  font-size: 3.6rem;
  line-height: 1;
}

.course-hero__copy p {
  margin: 16px 0 0;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.6;
}

.course-hero__copy p a {
  color: var(--text);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.course-player {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 20px;
  margin-top: 22px;
}

.course-player__stage {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: #000000;
}

.course-player__playlist {
  min-width: 0;
}

.course-player__playlist h2 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.5rem;
}

@media (max-width: 960px) {
  .course-player {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-main {
    padding-top: 92px;
  }

  .page-header h1 {
    font-size: 3rem;
  }

  .course-hero {
    min-height: 360px;
  }

  .course-hero__copy h1 {
    font-size: 2.4rem;
  }
}