:root {
  --bg: #f7f4ee;
  --bg-elevated: #ffffff;
  --ink: #1f2a24;
  --ink-soft: #5b6b60;
  --primary: #0f5c3f;
  --primary-dark: #0a3f2b;
  --gold: #b8863b;
  --gold-soft: #f0e2c4;
  --border: #e4ddcc;
  --shadow: 0 4px 20px rgba(15, 92, 63, 0.08);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10201a;
    --bg-elevated: #16281f;
    --ink: #ecf3ee;
    --ink-soft: #9fb3a8;
    --primary: #4fd18f;
    --primary-dark: #2fa86e;
    --gold: #e0b268;
    --gold-soft: #2c2415;
    --border: #24382e;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100%;
}

.hidden { display: none !important; }

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 100px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  padding: 24px 0 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
  white-space: nowrap;
}

.brand-mark {
  font-size: 18px;
  color: var(--gold);
}

.search-wrap {
  position: relative;
  flex: 1 1 240px;
}

.page-search {
  margin-bottom: 8px;
  max-width: 480px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-soft);
  pointer-events: none;
}

.search-wrap input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--ink);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.search-wrap input:focus {
  border-color: var(--primary);
}

.result-count {
  font-size: 12px;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.view {
  padding-top: 24px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.xassida-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
}

.xassida-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-icon {
  font-size: 20px;
  display: block;
  margin-bottom: 10px;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
  padding-right: 24px;
  line-height: 1.4;
}

.card-fav {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--border);
  padding: 0;
  display: flex;
}

.card-fav.active {
  color: var(--gold);
}

.card-fav svg {
  fill: currentColor;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 0 0 20px;
}

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

.detail-header {
  margin-bottom: 16px;
}

.detail-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

#detail-title {
  font-size: 26px;
  margin: 0;
  color: var(--ink);
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.action-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.favorite-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink-soft);
  flex-shrink: 0;
  transition: all 0.15s;
}

.favorite-btn.active {
  color: var(--gold);
  border-color: var(--gold);
}

.favorite-btn.active svg {
  fill: currentColor;
}

.detail-note {
  color: var(--ink-soft);
  font-size: 12px;
  margin: 8px 0 0;
}

.book-frame {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 4px 4px 4px 20px;
  overflow: hidden;
}

.book-spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 16px;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
}

.pdf-frame {
  width: 100%;
  height: 80vh;
  min-height: 500px;
  border: none;
  border-radius: 8px;
  display: block;
  background: #fff;
}

.audio-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.audio-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
}

.play-btn {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.play-btn svg {
  margin-left: 2px;
}

.audio-row-info {
  flex: 1;
  min-width: 0;
}

.audio-row-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.audio-row-source {
  font-size: 12px;
  color: var(--gold);
}

.dl-link {
  flex-shrink: 0;
  color: var(--ink-soft);
  display: flex;
  padding: 6px;
}

.dl-link:hover {
  color: var(--primary);
}

.mini-player {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.mini-player-info {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#mini-audio {
  flex: 1;
  min-width: 200px;
  height: 36px;
}

@media (max-width: 600px) {
  .topbar {
    padding-top: 16px;
  }
  .tabs {
    margin-left: 0;
  }
  #detail-title {
    font-size: 20px;
  }
  .pdf-frame {
    height: 65vh;
  }
}