/* ==========================================================================
   Flair Academy — Apple-inspired static templates
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f7;
  --color-bg-tertiary: #e8e8ed;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-text-tertiary: #86868b;
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-success: #34c759;
  --color-on-accent: #ffffff;
  --color-rating: #ff9500;
  --color-media: #1d1d1f;
  --color-media-alt: #434343;
  --color-lesson-active: #ffffff;
  --color-video-play-bg: rgba(255, 255, 255, 0.9);
  --color-video-play-text: #1d1d1f;
  --nav-bg: rgba(255, 255, 255, 0.72);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
  --toggle-track: #e8e8ed;
  --toggle-track-active: #636366;
  --toggle-thumb: #ffffff;
  --toggle-thumb-shadow: rgba(0, 0, 0, 0.12);
  --toggle-icon: #86868b;
  --toggle-icon-active: #1d1d1f;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
  --nav-height: 52px;
  --max-width: 980px;
  --max-width-wide: 1200px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

[data-theme="dark"] {
  --color-bg: #000000;
  --color-bg-secondary: #1d1d1f;
  --color-bg-tertiary: #2c2c2e;
  --color-text: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-text-tertiary: #6e6e73;
  --color-accent: #2997ff;
  --color-accent-hover: #40a9ff;
  --color-border: rgba(255, 255, 255, 0.12);
  --color-media: #000000;
  --color-media-alt: #2c2c2e;
  --color-lesson-active: #2c2c2e;
  --color-video-play-bg: rgba(255, 255, 255, 0.12);
  --color-video-play-text: #f5f5f7;
  --nav-bg: rgba(29, 29, 31, 0.82);
  --nav-mobile-bg: rgba(29, 29, 31, 0.98);
  --toggle-track: #39393d;
  --toggle-track-active: #636366;
  --toggle-thumb: #f5f5f7;
  --toggle-thumb-shadow: rgba(0, 0, 0, 0.45);
  --toggle-icon: #636366;
  --toggle-icon-active: #f5f5f7;
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.55);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  color-scheme: light;
}

[data-theme="dark"] {
  color-scheme: dark;
}

html.theme-transition,
html.theme-transition * {
  transition: background-color 0.4s ease, color 0.25s ease, border-color 0.4s ease,
    box-shadow 0.4s ease, fill 0.25s ease, stroke 0.25s ease !important;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.47059;
  letter-spacing: -0.022em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  text-decoration: underline;
}

ul {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 22px;
}

.container--wide {
  max-width: var(--max-width-wide);
}

.section {
  padding: 80px 0;
}

.section--gray {
  background: var(--color-bg-secondary);
}

.section__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.section__title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 600;
  letter-spacing: -0.003em;
  line-height: 1.08349;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: clamp(17px, 2.5vw, 21px);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.381;
  max-width: 640px;
}

.section__header {
  text-align: center;
  margin-bottom: 56px;
}

.section__header .section__subtitle {
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 22px;
}

.nav__logo {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav__logo:hover {
  text-decoration: none;
  opacity: 0.8;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__links a {
  font-size: 15px;
  color: var(--color-text);
  text-decoration: none;
  opacity: 0.88;
  transition: opacity var(--transition);
}

.nav__links a:hover {
  opacity: 1;
  text-decoration: none;
}

.nav__links a.is-active {
  opacity: 1;
  font-weight: 500;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__actions .btn--small {
  font-size: 14px;
  padding: 10px 18px;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text);
}

.nav__mobile {
  display: none;
}

/* --------------------------------------------------------------------------
   Theme toggle (Apple-style switch)
   -------------------------------------------------------------------------- */

.theme-toggle {
  position: relative;
  flex-shrink: 0;
  width: 56px;
  height: 32px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle:focus-visible .theme-toggle__track {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.theme-toggle__track {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 32px;
  background: var(--toggle-track);
  position: relative;
  transition: background var(--transition);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .theme-toggle__track {
  background: var(--toggle-track-active);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.35);
}

.theme-toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--toggle-thumb);
  box-shadow: 0 1px 4px var(--toggle-thumb-shadow), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
  z-index: 2;
}

[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(24px);
}

.theme-toggle__icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  z-index: 1;
  transition: opacity 0.3s ease, color 0.3s ease;
  pointer-events: none;
}

.theme-toggle__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.theme-toggle__icon--sun {
  left: 9px;
  color: var(--toggle-icon-active);
  opacity: 1;
}

.theme-toggle__icon--moon {
  right: 9px;
  color: var(--toggle-icon);
  opacity: 0.45;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  color: var(--toggle-icon);
  opacity: 0.4;
}

[data-theme="dark"] .theme-toggle__icon--moon {
  color: var(--toggle-icon-active);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  border-radius: 980px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition),
    transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
}

.btn--secondary {
  background: transparent;
  color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
}

.btn--secondary:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn--ghost {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.btn--ghost:hover {
  background: var(--color-bg-tertiary);
}

.btn--large {
  padding: 16px 28px;
  font-size: 17px;
}

.btn--small {
  padding: 8px 16px;
  font-size: 12px;
}

.btn--block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  text-align: center;
  padding: 100px 22px 80px;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.not-found-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.not-found-page .not-found {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 22px 64px;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.not-found-page .footer {
  margin-top: auto;
}

.not-found__panel {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(40px, 6vw, 56px) clamp(28px, 5vw, 40px);
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.not-found__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 12px;
}

.not-found__code {
  font-size: clamp(80px, 20vw, 132px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.05em;
  margin: 0 0 16px;
  color: var(--color-text-tertiary);
  opacity: 0.35;
  user-select: none;
}

.not-found__title {
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--color-text);
}

.not-found__text {
  font-size: 17px;
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin: 0 auto 32px;
  max-width: 360px;
}

.not-found__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.not-found__actions .btn {
  min-width: 168px;
}

.hero--compact {
  padding: 72px 22px 56px;
}

.hero__eyebrow {
  font-size: 17px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.hero__title {
  font-size: clamp(40px, 7vw, 64px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.hero__subtitle {
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.33341;
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.hero__visual {
  margin-top: 56px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-media) 0%, var(--color-media-alt) 50%, var(--color-media) 100%);
  aspect-ratio: 16 / 9;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(0, 113, 227, 0.3), transparent 60%);
}

.hero__visual-label {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__visual--interactive {
  cursor: pointer;
}

.hero__visual-video {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero__sound-toggle {
  position: absolute;
  right: 16px;
  bottom: 16px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: background var(--transition), transform var(--transition);
}

.hero__sound-toggle:hover {
  background: rgba(0, 0, 0, 0.72);
  transform: scale(1.05);
}

.hero__sound-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.hero__sound-icon {
  width: 22px;
  height: 22px;
}

.hero__sound-icon--on {
  display: none;
}

.hero__sound-toggle.is-unmuted .hero__sound-icon--muted {
  display: none;
}

.hero__sound-toggle.is-unmuted .hero__sound-icon--on {
  display: block;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.card__image {
  aspect-ratio: 16 / 10;
  background: linear-gradient(145deg, var(--color-media-alt), var(--color-media));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  overflow: hidden;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.card__title {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  line-height: 1.2;
}

.card__text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  flex: 1;
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.card__price {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Features
   -------------------------------------------------------------------------- */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature {
  text-align: center;
  padding: 32px 16px;
}

.feature__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-bg-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.feature__icon svg {
  width: 30px;
  height: 30px;
}

.feature__title {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature__text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Course detail & lessons
   -------------------------------------------------------------------------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb span {
  color: var(--color-text-tertiary);
}

.course-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.course-layout--full {
  grid-template-columns: 1fr;
}

.course-main__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.course-main__desc {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 32px;
}

.lesson-panel {
  margin-bottom: 32px;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.lesson-panel__section + .lesson-panel__section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.lesson-panel__title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 12px;
}

.lesson-panel__text {
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text-secondary);
  white-space: pre-wrap;
}

.lesson-materials {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lesson-material {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 28px;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.lesson-material:hover {
  border-color: color-mix(in srgb, var(--color-accent) 40%, var(--color-border));
  background: var(--color-bg-tertiary);
  text-decoration: none;
  transform: translateY(-1px);
}

.lesson-material__badge {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

.lesson-material__badge--pdf {
  background: rgba(255, 59, 48, 0.12);
  color: #ff3b30;
}

.lesson-material__badge--doc {
  background: rgba(0, 113, 227, 0.12);
  color: var(--color-accent);
}

.lesson-material__badge--sheet {
  background: rgba(52, 199, 89, 0.12);
  color: #34c759;
}

.lesson-material__badge--image {
  background: rgba(175, 82, 222, 0.12);
  color: #af52de;
}

.lesson-material__badge--archive {
  background: rgba(255, 149, 0, 0.12);
  color: #ff9500;
}

.lesson-material__body {
  min-width: 0;
}

.lesson-material__name {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-material__meta {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.lesson-material__action {
  font-size: 18px;
  line-height: 1;
  color: var(--color-accent);
  text-align: center;
}

@media (max-width: 640px) {
  .lesson-panel {
    padding: 18px;
  }

  .lesson-material {
    grid-template-columns: 40px minmax(0, 1fr) 24px;
    gap: 12px;
    padding: 10px 12px;
  }

  .lesson-material__badge {
    width: 40px;
    height: 40px;
    font-size: 10px;
  }
}

.video-player {
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.video-player__play {
  width: 72px;
  height: 72px;
  background: var(--color-video-play-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--color-video-play-text);
  cursor: default;
}

.video-player__label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

.video-player__status {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  pointer-events: none;
}

.video-player:has(.video-player__video) .video-player__status[hidden] {
  display: none;
}

.lesson-list {
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.lesson-list__header {
  padding: 20px 24px;
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.lesson-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  transition: background var(--transition);
}

.lesson-item:last-child {
  border-bottom: none;
}

.lesson-item:hover {
  background: var(--color-bg-tertiary);
  text-decoration: none;
}

.lesson-item.is-active {
  background: var(--color-lesson-active);
  box-shadow: inset 3px 0 0 var(--color-accent);
}

.lesson-item__num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.lesson-item.is-active .lesson-item__num,
.lesson-item.is-complete .lesson-item__num {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.lesson-item.is-complete .lesson-item__num {
  background: var(--color-success);
}

.lesson-item__info {
  flex: 1;
  min-width: 0;
}

.lesson-item__title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}

.lesson-item__duration {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.lesson-item__lock {
  font-size: 14px;
  opacity: 0.4;
}

.lesson-item__done {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-success);
  opacity: 0.95;
}

.progress-card {
  margin-top: 18px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}

.progress-card__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.progress-card__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.progress-card__subtitle {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.course-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.purchase-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.purchase-card__price {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 4px;
}

.purchase-card__note {
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-bottom: 24px;
}

.purchase-card__features {
  margin-bottom: 24px;
}

.purchase-card__features li {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.purchase-card__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Forms (auth & contact)
   -------------------------------------------------------------------------- */

.form-page {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 22px;
  background: var(--color-bg-secondary);
}

.form-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  box-shadow: var(--shadow-md);
}

.form-card--wide {
  max-width: 560px;
}

.form-card__title {
  font-size: 28px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.form-card__subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 17px;
  color: var(--color-text);
  background: var(--color-bg-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  background: var(--color-bg);
  border-color: var(--color-accent);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.form-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.form-divider::before,
.form-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.checkbox-group input {
  margin-top: 3px;
  accent-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Reviews
   -------------------------------------------------------------------------- */

.reviews-stats {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: center;
  padding: 40px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  margin-bottom: 48px;
}

.reviews-stats__score {
  text-align: center;
}

.reviews-stats__number {
  font-size: 64px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
}

.reviews-stats__stars {
  font-size: 20px;
  color: var(--color-rating);
  margin: 8px 0;
  letter-spacing: 2px;
}

.reviews-stats__count {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.rating-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rating-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.rating-bar__track {
  flex: 1;
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.rating-bar__fill {
  height: 100%;
  background: var(--color-rating);
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  background: var(--color-bg-secondary);
  padding: 48px 0 24px;
  margin-top: auto;
}

.footer--compact {
  padding: 20px 0;
}

.footer--compact .footer__bottom {
  border-top: none;
  padding-top: 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.footer__brand {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer__desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 280px;
}

.footer__heading {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
}

.footer__links li {
  margin-bottom: 10px;
}

.footer__links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.footer__bottom--social {
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.book-social--footer {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */

.text-center {
  text-align: center;
}

.mt-24 {
  margin-top: 24px;
}

.mt-48 {
  margin-top: 48px;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 980px;
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

.badge--new {
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-accent);
}

.badge--popular {
  background: rgba(255, 149, 0, 0.12);
  color: var(--color-rating);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1068px) {
  .features {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .course-layout {
    grid-template-columns: 1fr;
  }

  .course-sidebar {
    position: static;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .reviews-stats {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 734px) {
  .nav__links,
  .nav__actions .btn {
    display: none;
  }

  .nav__actions .theme-toggle {
    display: block;
  }

  .nav__toggle {
    display: block;
  }

  .nav__mobile {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--nav-mobile-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 24px 22px;
    flex-direction: column;
    gap: 16px;
  }

  .nav__mobile.is-open {
    display: flex;
  }

  .nav__mobile a {
    font-size: 19px;
    color: var(--color-text);
    text-decoration: none;
    padding: 8px 0;
  }

  .nav__mobile button.nav-auth-out {
    font: inherit;
    font-size: 19px;
    color: var(--color-text);
    text-align: left;
    background: none;
    border: none;
    padding: 8px 0;
    cursor: pointer;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-card {
    padding: 32px 24px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }
}

/* --------------------------------------------------------------------------
   Book a show
   -------------------------------------------------------------------------- */

.hero__subtitle em {
  font-style: italic;
}

.book-show-page {
  scroll-snap-type: y proximity;
  scroll-padding-top: calc(var(--nav-height) + 16px);
}

.show-slide {
  scroll-snap-align: start;
}

.show-slide__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 48px;
  align-items: center;
}

.show-slide__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.show-slide__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.show-slide__text {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-top: 12px;
  max-width: 640px;
}

.show-slide__media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-tertiary);
  box-shadow: var(--shadow-md);
  position: relative;
  line-height: 0;
}

/* Photos: natural proportions, no crop */
.show-slide__media:has(.show-slide__img:not(.show-slide__img--gif)) {
  aspect-ratio: auto;
  background: #0d0d0d;
}

.show-slide__media:not(:has(.show-slide__img)):not(:has(.show-slide__video))::after {
  content: "Photo";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  aspect-ratio: 3 / 2;
  min-height: 240px;
}

.show-slide__img:not(.show-slide__img--gif) {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 560px);
  object-fit: contain;
  object-position: center;
}

/* GIF / video: frame matches clip aspect → no letterboxing */
.show-slide__media--motion {
  background: #111;
  margin-inline: auto;
  width: 100%;
}

.show-slide__media--portrait {
  aspect-ratio: 9 / 16;
  max-width: min(100%, 380px);
  max-height: min(78vh, 640px);
}

.show-slide__media--landscape {
  aspect-ratio: 16 / 9;
  max-height: min(52vh, 420px);
}

.show-slide__img--gif,
.show-slide__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.show-promo {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 48px;
  align-items: center;
}

.show-promo__copy .section__header {
  text-align: left;
  margin-bottom: 0;
}

.show-promo__copy .section__subtitle {
  margin-left: 0;
  margin-right: 0;
  max-width: none;
}

.show-promo__media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: #0d0d0d;
  line-height: 0;
}

.show-promo__media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 560px);
  object-fit: contain;
  object-position: center;
}

.book-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
}

.book-form-card {
  margin: 0;
  box-shadow: var(--shadow-md);
}

.book-success {
  margin-top: 24px;
  font-size: 17px;
  color: var(--color-success);
}

.book-error {
  margin-top: 18px;
  font-size: 15px;
  color: #ff3b30;
  line-height: 1.5;
}

.book-again {
  margin-top: 18px;
}

.book-aside {
  padding-top: 8px;
}

.book-aside__text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.book-aside__text a {
  color: var(--color-text);
  font-weight: 500;
}

.book-social {
  display: flex;
  gap: 16px;
}

.book-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: background var(--transition), transform var(--transition);
}

.book-social a:hover {
  background: var(--color-bg-tertiary);
  transform: translateY(-2px);
  text-decoration: none;
}

.book-social svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 734px) {
  .show-promo {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .show-slide__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .show-slide__inner,
  .show-promo {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .show-slide__img:not(.show-slide__img--gif),
  .show-promo__media img {
    max-height: none;
  }

  .show-slide__media--portrait {
    max-width: 100%;
    max-height: none;
  }

  .show-slide__media--landscape {
    max-height: none;
  }

  .book-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .book-aside {
    padding-top: 0;
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
  }
}

/* OAuth buttons */
.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.btn-oauth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), box-shadow var(--transition);
}

.btn-oauth:hover {
  background: var(--color-bg-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-oauth svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.auth-message {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: 20px;
}

.auth-message--error {
  background: rgba(255, 59, 48, 0.12);
  color: #ff3b30;
}

.auth-message--ok {
  background: rgba(52, 199, 89, 0.12);
  color: var(--color-success);
}

.card--soon {
  pointer-events: none;
  opacity: 0.72;
}

.card--soon:hover {
  transform: none;
  box-shadow: none;
}

.badge--available {
  background: rgba(52, 199, 89, 0.15);
  color: var(--color-success);
}

.badge--soon {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-secondary);
}

[data-theme="dark"] .badge--soon {
  background: rgba(255, 255, 255, 0.1);
}

/* Dashboard & Admin */
.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.dash-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.dash-profile {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dash-profile__eyebrow {
  margin: 0;
}

.dash-profile__name-row {
  display: flex;
  align-items: center;
  gap: 20px;
}

.dash-profile__name {
  margin: 0;
  line-height: 1.1;
}

.dash-profile__details {
  padding-left: 100px;
}

@media (max-width: 520px) {
  .dash-profile__details {
    padding-left: 0;
  }
}

.avatar-wrap {
  position: relative;
  flex-shrink: 0;
  width: 80px;
  height: 80px;
}

.avatar-wrap .avatar {
  position: absolute;
  inset: 0;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-bg-secondary);
  box-sizing: border-box;
}

.avatar-wrap .avatar--photo {
  object-fit: cover;
}

.avatar--placeholder {
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-secondary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2386868b'%3E%3Cpath fill-rule='evenodd' d='M7.5 6a4.5 4.5 0 1 1 9 0 4.5 4.5 0 0 1-9 0ZM3.751 20.105a8.25 8.25 0 0 1 16.498 0 .75.75 0 0 1-.437.695A18.683 18.683 0 0 1 12 22.5c-2.786 0-5.433-.608-7.812-1.7a.75.75 0 0 1-.437-.695Z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 44px 44px;
}

.avatar--placeholder[hidden] {
  display: none !important;
}

.avatar-wrap .avatar--photo:not([hidden]) {
  z-index: 2;
}

.avatar__icon {
  width: 44px;
  height: 44px;
  color: #86868b;
  flex-shrink: 0;
}

[data-theme="dark"] .avatar--placeholder {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23a1a1a6'%3E%3Cpath fill-rule='evenodd' d='M7.5 6a4.5 4.5 0 1 1 9 0 4.5 4.5 0 0 1-9 0ZM3.751 20.105a8.25 8.25 0 0 1 16.498 0 .75.75 0 0 1-.437.695A18.683 18.683 0 0 1 12 22.5c-2.786 0-5.433-.608-7.812-1.7a.75.75 0 0 1-.437-.695Z' clip-rule='evenodd'/%3E%3C/svg%3E");
}

[data-theme="dark"] .avatar__icon {
  color: #a1a1a6;
}

.avatar-upload-btn {
  margin-top: 10px;
  cursor: pointer;
}

.dash-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border-radius: var(--radius-xl);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.dash-tab {
  border: none;
  background: transparent;
  padding: 10px 16px;
  border-radius: 980px;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.dash-tab.is-active {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.dash-panel {
  min-height: 120px;
}

.dash-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.course-progress-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.course-progress-card__top {
  padding: 22px 22px 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.course-progress-card__title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  color: var(--color-text);
}

.course-progress-card__meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.course-progress-card__body {
  padding: 0 22px 22px;
}

.progress-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--color-bg-secondary);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.progress-bar__fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-accent), rgba(41, 151, 255, 0.6));
  border-radius: 999px;
  transition: width 0.4s ease;
}

.progress-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}

.progress-row__left {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.progress-row__right {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.course-progress-card__actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cert-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.cert-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.cert-card__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.cert-card__meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.cert-card__actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 8px;
}

.settings-form .btn {
  margin-top: 8px;
}

.form-hint {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 8px 0 0;
}

.form-alert {
  margin: 0 0 16px;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 15px;
  line-height: 1.5;
}

.form-alert[hidden] {
  display: none !important;
}

.form-alert--success {
  background: rgba(52, 199, 89, 0.14);
  border: 1px solid rgba(52, 199, 89, 0.35);
  color: #1a7f37;
}

.form-alert--error {
  background: rgba(255, 59, 48, 0.1);
  border: 1px solid rgba(255, 59, 48, 0.35);
  color: #c41e3a;
}

.form-alert--info {
  background: rgba(0, 122, 255, 0.08);
  border: 1px solid rgba(0, 122, 255, 0.25);
  color: var(--color-text);
}

[data-theme="dark"] .form-alert--success {
  color: #3dd68c;
}

[data-theme="dark"] .form-alert--error {
  color: #ff6b6b;
}

.form-hint--success {
  color: #1a7f37;
}

.form-hint--error {
  color: #c41e3a;
}

[data-theme="dark"] .form-hint--success {
  color: #3dd68c;
}

[data-theme="dark"] .form-hint--error {
  color: #ff6b6b;
}

.payments-table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}

.payments-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.payments-table th,
.payments-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.payments-table th {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.payments-table a {
  color: var(--color-accent);
  text-decoration: none;
}

.payments-table a:hover {
  text-decoration: underline;
}

.lesson-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.lesson-nav--next-only {
  justify-content: flex-end;
}

.lesson-nav .btn.is-hidden,
.lesson-nav .btn[hidden] {
  display: none !important;
}

.exam-videos-intro {
  max-width: 640px;
  margin-bottom: 24px;
}

.exam-videos-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.exam-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.exam-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.exam-card__tag {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.exam-card__title {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.exam-card__hint {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.exam-card__submission {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.exam-card__meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.exam-card__note {
  font-size: 14px;
  color: var(--color-text);
  margin: 0;
  padding: 12px 14px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.exam-card__video {
  width: 100%;
  max-height: 360px;
  border-radius: var(--radius-lg);
  background: #000;
  margin-top: 8px;
}

.exam-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.exam-upload-form {
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.exam-panel {
  margin-top: 24px;
  padding: 24px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.exam-panel__text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 20px;
}

.exam-panel--locked {
  text-align: center;
}

.lesson-item--exam .lesson-item__num {
  color: var(--color-accent);
  font-size: 14px;
}

.lesson-item--exam.is-active {
  border-color: var(--color-accent);
  background: var(--color-bg-secondary);
}

.review-form-section {
  padding-top: 48px;
  padding-bottom: 56px;
}

.review-form-panel {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: clamp(28px, 5vw, 56px);
  overflow: hidden;
}

.review-form-panel__intro {
  max-width: 640px;
  margin-bottom: 36px;
}

.review-form-panel__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--color-text);
}

.review-form-panel__subtitle {
  font-size: 17px;
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin: 0;
}

.review-form__rating-block {
  text-align: center;
  padding: 32px 24px;
  margin-bottom: 32px;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.review-form__rating-block .form-label {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.star-rating {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(6px, 1.5vw, 14px);
}

.star-rating__star {
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(44px, 8vw, 56px);
  height: clamp(44px, 8vw, 56px);
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: transform 0.15s ease, background 0.15s ease;
}

.star-rating__star:hover {
  transform: scale(1.12);
  background: rgba(0, 113, 227, 0.08);
}

.star-rating__star:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.star-rating__icon {
  width: 100%;
  height: 100%;
  fill: var(--color-border);
  transition: fill 0.15s ease, filter 0.15s ease;
}

.star-rating__star.is-active .star-rating__icon,
.star-rating__star.is-selected .star-rating__icon {
  fill: #f5b301;
  filter: drop-shadow(0 2px 6px rgba(245, 179, 1, 0.35));
}

[data-theme="dark"] .star-rating__star.is-active .star-rating__icon,
[data-theme="dark"] .star-rating__star.is-selected .star-rating__icon {
  fill: #ffd60a;
}

.review-form__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.review-form__message {
  margin-bottom: 28px;
}

.review-form__textarea {
  min-height: 160px;
  font-size: 16px;
  line-height: 1.55;
}

.review-form__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
}

.review-form__footer .form-hint {
  margin: 0;
  flex: 1;
  min-width: 200px;
}

.form-label__optional {
  font-weight: 400;
  color: var(--color-text-tertiary);
  text-transform: none;
  letter-spacing: 0;
}

@media (max-width: 900px) {
  .review-form__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 734px) {
  .review-form__footer {
    flex-direction: column;
    align-items: stretch;
  }

  .review-form__footer .btn {
    width: 100%;
  }
}

.cert-view {
  display: flex;
  justify-content: center;
  padding: 8px 0 24px;
}

.cert-template {
  width: 100%;
  display: flex;
  justify-content: center;
}

.cert-template__frame {
  position: relative;
  width: min(1024px, 100%);
  container-type: inline-size;
  line-height: 0;
  /* Measured from certificate-template.png (1024×723) */
  --cert-line-name: 44.5%;
  --cert-line-date: 89.2%;
  --cert-clearance: 1%;
}

.cert-template__bg {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

.cert-template__layer {
  position: absolute;
  inset: 0;
  line-height: 1.35;
  font-family: Georgia, "Times New Roman", Times, serif;
  color: #111;
  pointer-events: none;
}

.cert-template__layer > * {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  text-align: center;
  box-sizing: border-box;
}

.cert-template__school {
  top: 11.5%;
  width: 78%;
  font-size: 4.1cqw;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.cert-template__intro {
  top: 20.5%;
  width: 80%;
  font-size: 1.65cqw;
  line-height: 1.35;
  color: #222;
}

.cert-template__name {
  top: auto;
  bottom: calc(100% - var(--cert-line-name) + var(--cert-clearance));
  width: 68%;
  font-size: 4.4cqw;
  font-style: italic;
  font-weight: 700;
  line-height: 1.15;
}

.cert-template__body {
  top: 52%;
  width: 44%;
  font-size: 1.85cqw;
  line-height: 1.5;
  color: #222;
}

.cert-template__body strong {
  display: block;
  margin-top: 0.45cqw;
  font-size: 2.35cqw;
  font-weight: 700;
  font-style: italic;
}

.cert-template__date {
  top: auto;
  bottom: calc(100% - var(--cert-line-date) + var(--cert-clearance));
  width: 42%;
  font-size: 2.15cqw;
  font-style: italic;
  font-weight: 700;
  line-height: 1.2;
}

.cert-paper {
  width: min(900px, 100%);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--color-bg-secondary), var(--color-bg));
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 56px 48px;
  text-align: center;
}

.cert-paper__brand {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
}

.cert-paper__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.cert-paper__subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 22px;
}

.cert-paper__course {
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 36px;
}

.cert-paper__meta {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.cert-paper__meta span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 6px;
}

.cert-paper__meta strong {
  font-size: 14px;
  color: var(--color-text);
}

@media print {
  .nav,
  #btn-print {
    display: none !important;
  }

  body {
    background: #fff !important;
  }

  .cert-paper {
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }

  html.cert-print-page,
  html.cert-print-page body {
    width: 100%;
    height: auto;
    margin: 0 !important;
    padding: 0 !important;
    background: #fff !important;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  html.cert-print-page body {
    display: block !important;
    min-height: 0 !important;
  }

  html.cert-print-page .section,
  html.cert-print-page .container,
  html.cert-print-page .cert-view {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  html.cert-print-page .text-center.mt-24 {
    display: none !important;
  }

  html.cert-print-page .cert-view {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 0;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  html.cert-print-page .cert-template {
    width: 100%;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  html.cert-print-page .cert-template__frame {
    width: 100%;
    max-width: none;
    margin: 0;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  html.cert-print-page .cert-template__bg {
    width: 100%;
    height: auto;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  html.cert-print-page .cert-template__layer > * {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
}

.admin-panel {
  padding: 80px 0;
}

.admin-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.admin-stat {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  min-width: 140px;
}

.admin-stat__num {
  display: block;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 4px;
}

.admin-table-wrap {
  overflow-x: auto;
  margin-bottom: 48px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.admin-table th {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.admin-form-grid .form-input,
.admin-form-grid .form-select {
  font-size: 14px;
  padding: 10px 12px;
}

.admin-block {
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.admin-block:last-child {
  border-bottom: none;
}

.admin-block__title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 20px;
}

.admin-editor {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.admin-form-box {
  margin: 16px 0 24px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.admin-details summary {
  cursor: pointer;
  list-style: none;
  margin-bottom: 16px;
}

.admin-details summary::-webkit-details-marker {
  display: none;
}

.admin-hint {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

.admin-field-hint {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 6px;
}

.admin-poster-preview {
  margin: 8px 0 12px;
  max-width: 320px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
}

.admin-poster-preview img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

.form-input--file {
  padding: 10px 12px;
  font-size: 14px;
}

.form-input--file::file-selector-button {
  margin-right: 12px;
  padding: 6px 14px;
  border: none;
  border-radius: 980px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
}

.admin-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-editor__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.admin-modal[hidden],
.admin-editor[hidden],
.video-player[hidden],
.is-hidden {
  display: none !important;
}

.admin-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.admin-panel-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.admin-lesson-editor {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.admin-lesson-editor__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.admin-attachments {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.admin-attachment {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-secondary);
}

.admin-attachment a {
  font-weight: 500;
}

.admin-upload-progress {
  margin-top: 10px;
}

.admin-upload-progress__track {
  height: 8px;
  border-radius: 999px;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.admin-upload-progress__bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--color-accent);
  transition: width 0.15s ease;
}

.admin-upload-progress__text {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.admin-upload-progress__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
}

.admin-back-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.admin-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.admin-modal__card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.video-player__iframe,
.video-player__video {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius-lg);
}

.video-player:has(.video-player__iframe),
.video-player:has(.video-player__video) {
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-player:has(.video-player__iframe) .video-player__play,
.video-player:has(.video-player__video) .video-player__play {
  display: none;
}