/* ============================================
   Tamil Learning Module — Page Layouts
   ============================================ */

/* ── Page Container ── */
.page {
  padding: var(--space-2xl) 0;
  animation: pageFadeIn 0.4s ease;
}

.page__header {
  margin-bottom: var(--space-2xl);
}

.page__title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-sm);
}

.page__subtitle {
  color: var(--text-secondary);
  font-size: var(--fs-base);
}

/* ── Language Select Page ── */
.page--language-select {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-2xl);
}

.language-select__wrapper {
  text-align: center;
  max-width: 800px;
  width: 100%;
}

.language-select__title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-sm);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.language-select__subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  margin-bottom: var(--space-3xl);
}

.language-select__grid {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Level Select Page ── */
.page--level-select {
  padding-top: 100px;
}

.level-select__grid {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
}

.level-select__grid .card--select {
  flex: 1;
  min-width: 280px;
  max-width: 380px;
}

/* ── Dashboard Page ── */
.page--dashboard {
  padding-top: 100px;
}

.dashboard__progress-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.dashboard__stage {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  background: var(--bg-card);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}

.dashboard__encourage {
  font-size: var(--fs-sm);
  color: var(--accent-violet);
  font-weight: var(--fw-medium);
}

.dashboard__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.dashboard__card-tags {
  margin-top: var(--space-sm);
}

/* ── Topic Detail Page ── */
.page--topic-detail {
  padding-top: 100px;
}

.topic-detail__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: 960px;
  margin: 0 auto;
}

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

.topic-detail__card .card__icon {
  margin: 0 auto var(--space-base);
}

.topic-detail__rewards {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin: var(--space-base) 0;
}

.topic-detail__reward {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ── Learning Flow Page ── */
.page--learning-flow {
  padding-top: 100px;
}

.learning-flow__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.learning-box {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
}

.learning-box__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.learning-box__number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--text-white);
}

.learning-box__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
}

.learning-box__video {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1a1d2e 0%, #2d3148 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--text-white);
  font-size: 3rem;
  position: relative;
}

.learning-box__video-label {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.6);
  font-weight: var(--fw-medium);
}

.learning-box__summary {
  margin-bottom: var(--space-base);
}

.learning-box__summary h4 {
  margin-bottom: var(--space-sm);
}

.learning-box__bullets {
  padding-left: var(--space-lg);
  list-style: disc;
}

.learning-box__bullets li {
  padding: var(--space-xs) 0;
  color: var(--text-secondary);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
}

.learning-box__upload-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-base);
}

.upload-option {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-primary);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
}

.upload-option:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.upload-option.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

/* ── Leaderboard Page ── */
.page--leaderboard {
  padding-top: 100px;
}

.leaderboard__wrapper {
  max-width: 700px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
  overflow-x: auto;
}

/* ── Achievements Page ── */
.page--achievements {
  padding-top: 100px;
}

.achievements__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-xl);
  max-width: 700px;
  margin: 0 auto;
}

.achievement-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-slow);
}

.achievement-card:hover {
  transform: translateY(-4px);
}

/* ── Header ── */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  padding: 0 var(--space-xl);
}

.app-header__inner {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.app-header__back {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-base);
  color: var(--text-secondary);
}

.app-header__back:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.app-header__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
}

.app-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-stat {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
}

.header-stat--xp {
  background: var(--accent-amber-light);
  color: var(--accent-amber);
}

.header-stat--stars {
  background: var(--accent-violet-light);
  color: var(--accent-violet);
}

.header-stat--name {
  background: var(--accent-teal-light);
  color: var(--accent-teal);
}

.header-progress {
  width: 120px;
}

/* ── Nav Links (in header) ── */
.header-nav {
  display: flex;
  gap: var(--space-xs);
}

.header-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: all var(--transition-base);
  cursor: pointer;
}

.header-nav__link:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.header-nav__link--active {
  background: var(--primary-light);
  color: var(--primary);
}

/* ── Celebration Popup ── */
.celebration-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-celebration);
  animation: fadeIn 0.3s ease;
}

.celebration-popup {
  background: var(--bg-card);
  border-radius: var(--radius-2xl);
  padding: var(--space-4xl);
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.celebration-popup__emoji {
  font-size: 5rem;
  margin-bottom: var(--space-lg);
  animation: bounce 0.6s ease infinite alternate;
}

.celebration-popup__title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-sm);
}

.celebration-popup__text {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .dashboard__grid {
    grid-template-columns: 1fr;
  }

  .topic-detail__grid {
    grid-template-columns: 1fr;
  }

  .language-select__grid {
    flex-direction: column;
    align-items: center;
  }

  .level-select__grid {
    flex-direction: column;
    align-items: center;
  }

  .app-header__right {
    gap: var(--space-sm);
  }

  .header-stat--name {
    display: none;
  }

  .header-progress {
    width: 80px;
  }

  .header-nav {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-base);
  }

  .page__title {
    font-size: var(--fs-xl);
  }

  .card {
    padding: var(--space-lg);
  }

  .card--select {
    padding: var(--space-2xl) var(--space-lg);
    min-width: 220px;
  }

  .celebration-popup {
    padding: var(--space-2xl);
  }
}