:root {
  color-scheme: light dark;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --ink: #1f2937;
  --muted: #5f6b7a;
  --brand: #0f766e;
  --brand-soft: #d1fae5;
  --border: #e5e7eb;
  --item-bg: #fbfdff;

  --md-sys-color-surface: var(--surface);
  --md-sys-color-surface-container: var(--surface);
  --md-sys-color-on-surface: var(--ink);
  --md-sys-color-primary: var(--brand);
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-on-primary-container: var(--ink);
  --md-primary-tab-active-indicator-color: var(--brand);
  --md-primary-tab-active-label-text-color: var(--brand);
  --md-primary-tab-inactive-label-text-color: var(--muted);

  --player-glow-strong: rgba(15, 23, 42, 0.16);
  --player-glow-soft: rgba(15, 23, 42, 0);
  --player-accent: #0f766e;
  --player-track: #dbe3ee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Roboto", system-ui, sans-serif;
  background: radial-gradient(circle at top right, #e0f2fe, transparent 42%),
    radial-gradient(circle at 10% 20%, #fef3c7, transparent 36%), var(--bg);
  color: var(--ink);
  padding-bottom: 9.5rem;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  padding: 2.5rem 0 1.4rem;
}

.hero h3 {
  margin: 0;
  font-weight: 700;
}

.hero-text {
  color: var(--muted);
  margin-top: 0.5rem;
}

.section-root {
  padding-bottom: 1rem;
}

.surface-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.tab-shell {
  padding: 0.35rem 0.5rem;
}

md-tabs {
  width: 100%;
}

.panel-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 1rem;
  margin-top: 0.75rem;
}

.panel-content {
  padding: 1rem;
}

.section-heading,
.section-title {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
}

.sound-panel {
  display: none;
}

.sound-panel.active {
  display: block;
}

.category-list {
  display: grid;
  gap: 0.35rem;
}

.category-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.62rem 0.72rem;
  cursor: pointer;
  color: var(--ink);
  background: var(--surface);
  text-align: left;
  text-decoration: none;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.16rem 0.5rem;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.category-item:hover {
  border-color: color-mix(in srgb, var(--brand) 42%, var(--border));
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.category-name {
  font-weight: 600;
  grid-column: 1;
}

.category-meta {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.78rem;
  align-self: start;
  white-space: nowrap;
}

.category-preview {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.category-item.active {
  background: var(--brand-soft);
  color: #064e3b;
  font-weight: 600;
  border-color: color-mix(in srgb, var(--brand) 60%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--brand) 24%, transparent);
}

.category-description {
  color: var(--muted);
  margin: 0 0 1rem;
}

.sounds-grid {
  display: grid;
  gap: 0.75rem;
}

.sound-item {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--item-bg);
  padding: 0.85rem;
}

.sound-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.sound-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.sound-status {
  display: inline-flex;
  margin-top: 0.34rem;
  padding: 0.12rem 0.46rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #065f46;
  background: #d1fae5;
  border: 1px solid #a7f3d0;
}

.sound-status[hidden] {
  display: none !important;
}

.sound-item.is-current {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
}

.sound-item.is-playing {
  background: color-mix(in srgb, var(--brand-soft) 36%, var(--item-bg));
}

.sound-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.44rem 0.72rem;
  background: var(--surface);
  font-weight: 500;
}

.global-player {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  padding: 0.35rem 0 0;
  background: transparent;
  border-top: 0;
  backdrop-filter: none;
  overflow: visible;
}

.player-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(280px, 2fr);
  gap: 1rem;
  align-items: center;
  padding: 0.8rem 1rem;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: 18px 18px 0 0;
  backdrop-filter: blur(10px) saturate(120%);
  box-shadow: none;
}

.player-controls {
  width: 100%;
}

.player-main-controls {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.8rem;
}

.player-play-pause {
  width: 2.55rem;
  height: 2.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--player-accent) 30%, var(--border));
  color: #ffffff;
  background: var(--player-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.player-play-pause .material-symbols-outlined {
  font-size: 1.35rem;
}

.player-timeline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.55rem;
  align-items: center;
}

.player-time {
  color: var(--muted);
  font-size: 0.82rem;
  min-width: 2.4rem;
  text-align: center;
}

.player-seek {
  width: 100%;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}

.player-seek::-webkit-slider-runnable-track {
  height: 0.35rem;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--player-accent) 0%,
    var(--player-accent) var(--seek-fill, 0%),
    var(--player-track) var(--seek-fill, 0%),
    var(--player-track) 100%
  );
}

.player-seek::-moz-range-track {
  height: 0.35rem;
  border-radius: 999px;
  background: var(--player-track);
}

.player-seek::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 999px;
  background: #ffffff;
  border: 2px solid var(--player-accent);
  margin-top: -0.3rem;
}

.player-seek::-moz-range-thumb {
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 999px;
  background: #ffffff;
  border: 2px solid var(--player-accent);
}

.player-header {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.player-icon {
  font-size: 1.15rem;
  color: var(--brand);
}

.player-label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

#player-title {
  margin: 0.2rem 0 0;
}

.player-subtitle {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

#global-audio {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --surface: #111827;
    --ink: #e5e7eb;
    --muted: #9ca3af;
    --brand: #34d399;
    --brand-soft: #064e3b;
    --border: #374151;
    --item-bg: #0b1323;

    --md-sys-color-on-primary: #062a22;
    --md-sys-color-on-primary-container: #d1fae5;
    --md-primary-tab-active-label-text-color: #86efac;
    --md-primary-tab-inactive-label-text-color: #cbd5e1;

    --player-glow-strong: rgba(0, 0, 0, 0.34);
    --player-glow-soft: rgba(0, 0, 0, 0);
    --player-accent: #34d399;
    --player-track: #334155;
  }

  body {
    background: radial-gradient(circle at top right, #1e3a8a44, transparent 42%),
      radial-gradient(circle at 10% 20%, #14532d44, transparent 36%), var(--bg);
  }

  .category-item.active {
    color: #d1fae5;
  }

  .sound-status {
    color: #d1fae5;
    background: #064e3b;
    border-color: #047857;
  }

  .category-item {
    background: #0f172a;
    color: #e5e7eb;
    border-color: #334155;
  }

  .category-item:hover {
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.35);
  }

  .category-meta,
  .category-preview {
    color: #94a3b8;
  }

  .tab-shell {
    background: #111827;
    border-color: #334155;
  }

  audio {
    filter: invert(0.92) hue-rotate(180deg);
  }
}

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

@media (max-width: 700px) {
  .hero {
    padding-top: 1.5rem;
  }

  .sound-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .player-inner {
    grid-template-columns: 1fr;
  }

  .player-main-controls {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .player-play-pause {
    justify-self: start;
  }

  body {
    padding-bottom: 12rem;
  }
}