:root {
  color-scheme: light;
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #e8edf5;
  --line: #d7dfeb;
  --text: #1c2940;
  --muted: #58677e;
  --accent: #315ec4;
  --accent-2: #5064c9;
  --accent-ink: #ffffff;
  --danger: #b4233a;
  --radius: 16px;
  --player-height: 188px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

body { min-height: 100dvh; overscroll-behavior-y: contain; }

button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
svg { width: 22px; height: 22px; flex: none; }
.sprite { position: absolute; }

h1, h2, p { margin: 0; }

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(var(--safe-top) + 12px) 16px calc(var(--player-height) + var(--safe-bottom) + 24px);
}

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0 14px;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-icon { width: 40px; height: 40px; border-radius: 12px; }
.brand h1 { font-size: 1.45rem; font-weight: 800; letter-spacing: -0.02em; }
.summary { color: var(--muted); font-size: .85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-actions { display: flex; gap: 6px; }

.icon-button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 2px 4px rgba(28, 41, 64, .03);
}
.icon-button:active { background: var(--surface-2); }

/* Add bar */
.add-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }

.web-search { margin: 0 0 14px; }
.search-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.search-form input {
  min-width: 0;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 16px;
}
.search-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.search-form .pill-button { padding: 0 16px; }
.search-help, .search-status { margin: 8px 2px 0; color: var(--muted); font-size: .8rem; line-height: 1.45; }
.search-status:empty { display: none; }
.search-status.error { color: var(--danger); }
.search-results { display: grid; gap: 8px; margin: 10px 0 0; padding: 0; list-style: none; }
.search-results:empty { display: none; }
.search-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.search-result-main { min-width: 0; }
.search-result-title { display: block; overflow: hidden; color: var(--text); font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.search-result-url { display: block; overflow: hidden; margin-top: 3px; color: var(--muted); font-size: .78rem; text-overflow: ellipsis; white-space: nowrap; }
.search-result-description { grid-column: 1 / -1; color: var(--muted); font-size: .82rem; line-height: 1.4; overflow-wrap: anywhere; }
.search-result .pill-button { min-height: 40px; padding: 0 14px; font-size: .85rem; }
.search-result .pill-button[disabled] { cursor: default; }

.pill-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 650;
}
.pill-button svg { width: 20px; height: 20px; }
.pill-button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  box-shadow: 0 4px 10px rgba(49, 94, 196, .16);
}
.pill-button:active { transform: scale(.98); }
.pill-button:disabled { opacity: .5; }

/* Downloads */
.downloads { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 8px; }
.downloads:empty { display: none; }
.download {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.download-name { font-weight: 600; font-size: .92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.download-status { color: var(--muted); font-size: .8rem; grid-column: 1; }
.download.error .download-status { color: var(--danger); }
.download button {
  grid-row: 1 / span 2;
  grid-column: 2;
  border: 0;
  background: var(--surface-2);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: .85rem;
}
.download progress {
  grid-column: 1 / -1;
  width: 100%;
  height: 4px;
  appearance: none;
  border: 0;
  border-radius: 4px;
  background: var(--surface-2);
  overflow: hidden;
}
.download progress::-webkit-progress-bar { background: var(--surface-2); }
.download progress::-webkit-progress-value { background: var(--accent); }
.download progress::-moz-progress-bar { background: var(--accent); }

/* Playlist */
.list-header { display: flex; align-items: baseline; justify-content: space-between; margin: 4px 2px 10px; }
.list-header h2 { font-size: 1rem; font-weight: 750; }
.mode-hint { display: inline-flex; align-items: center; gap: 4px; color: var(--muted); font-size: .8rem; }
.mode-hint svg { width: 16px; height: 16px; }
.mode-hint[hidden] { display: none; }

.track-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.track-list:empty { display: none; }

.track {
  position: relative;
  display: grid;
  grid-template-columns: 36px 1fr auto auto;
  align-items: center;
  gap: 4px;
  min-height: 64px;
  padding: 6px 4px 6px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 2px 4px rgba(28, 41, 64, .025);
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  transition: background .15s, border-color .15s;
}
.track.current { border-color: color-mix(in srgb, var(--accent) 55%, var(--surface)); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); }
.track.missing .track-title { color: var(--muted); }
.track.dragging {
  z-index: 5;
  background: var(--surface-2);
  border-color: var(--line);
  box-shadow: 0 14px 30px rgba(28, 41, 64, .16);
  transition: none;
}
.track.native-dragging { opacity: .55; }
.track.drop-before { box-shadow: inset 0 2px var(--accent); }
.track.drop-after { box-shadow: inset 0 -2px var(--accent); }

.track-index {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: .85rem;
  font-variant-numeric: tabular-nums;
}
.track.current .track-index { color: var(--accent); }
.eq { display: none; gap: 2px; align-items: flex-end; height: 16px; }
.eq span { width: 3px; background: var(--accent); border-radius: 2px; animation: eq 0.9s ease-in-out infinite; }
.eq span:nth-child(2) { animation-delay: -.3s; }
.eq span:nth-child(3) { animation-delay: -.6s; }
.track.current.playing .eq { display: flex; }
.track.current.playing .num { display: none; }
@keyframes eq { 0%, 100% { height: 4px; } 50% { height: 16px; } }

.track-main {
  min-width: 0;
  padding: 6px 4px;
  border: 0;
  background: none;
  text-align: left;
}
.track-title { font-weight: 650; font-size: .98rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-meta { color: var(--muted); font-size: .8rem; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.badge {
  display: inline-block;
  padding: 0 6px;
  margin-right: 4px;
  border-radius: 6px;
  background: var(--surface-2);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.5;
}
.badge.warn { background: color-mix(in srgb, var(--danger) 10%, var(--surface)); color: var(--danger); }
.badge.video { background: color-mix(in srgb, var(--accent-2) 10%, var(--surface)); color: var(--accent); }

.track-more, .track-grip {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: none;
  color: var(--muted);
}
.track-grip { cursor: grab; touch-action: none; }
.track.dragging .track-grip { cursor: grabbing; color: var(--text); }
.track-more:active, .track-grip:active { background: var(--surface-2); }

body.is-dragging { cursor: grabbing; }
body.is-dragging * { user-select: none; -webkit-user-select: none; }

.empty-state {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 48px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
  color: var(--muted);
}
.empty-state svg { width: 40px; height: 40px; color: var(--accent); }
.empty-state h2 { color: var(--text); font-size: 1.05rem; }
.empty-state p { max-width: 34ch; font-size: .9rem; line-height: 1.45; }
.empty-state[hidden] { display: none; }

/* Player */
.player {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: grid;
  gap: 8px;
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 18px calc(var(--safe-bottom) + 14px);
  border-top: 1px solid var(--line);
  border-radius: 22px 22px 0 0;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 -8px 32px rgba(28, 41, 64, .08);
}

.now-playing { display: flex; align-items: center; gap: 12px; min-width: 0; }
.art {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  flex: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  border-radius: 12px;
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.art:disabled { cursor: default; opacity: 1; }
.art:not(:disabled) { cursor: pointer; }
.art svg { display: none; width: 24px; height: 24px; align-self: center; }
.player.has-video .art span { display: none; }
.player.has-video .art svg { display: block; }
.art[aria-pressed="true"] { box-shadow: inset 0 0 0 2px var(--accent-ink); }

.video-stage {
  position: relative;
  display: grid;
  place-items: center;
  margin: -4px -6px 2px;
  border-radius: 14px;
  overflow: hidden;
  background: #000;
}
.video-stage[hidden] { display: none; }
.video {
  display: block;
  width: 100%;
  max-height: min(36vh, 360px);
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #000;
  cursor: pointer;
}
.video-stage:fullscreen { margin: 0; border-radius: 0; }
.video-stage:fullscreen .video { max-height: 100vh; height: 100%; aspect-ratio: auto; }
.video-tools {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
}
.video-tool {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: rgba(0, 0, 0, .55);
  cursor: pointer;
}
.video-tool[hidden] { display: none; }
.video-tool svg { width: 18px; height: 18px; }
.video-tool:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.art span { width: 4px; height: 30%; background: var(--accent-ink); border-radius: 2px; opacity: .8; }
.art span:nth-child(2) { height: 70%; }
.art span:nth-child(3) { height: 50%; }
.art span:nth-child(4) { height: 85%; }
.player.playing .art span { animation: eq 1s ease-in-out infinite; }
.player.playing .art span:nth-child(2) { animation-delay: -.25s; }
.player.playing .art span:nth-child(3) { animation-delay: -.5s; }
.player.playing .art span:nth-child(4) { animation-delay: -.75s; }
.now-text { min-width: 0; }
.now-title { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.now-sub { color: var(--muted); font-size: .8rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.seek { display: grid; grid-template-columns: 48px 1fr 48px; align-items: center; gap: 8px; }
.time { color: var(--muted); font-size: .75rem; font-variant-numeric: tabular-nums; }
.time:last-child { text-align: right; }

input[type="range"] {
  --progress: 0%;
  width: 100%;
  height: 28px;
  margin: 0;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  touch-action: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(to right, var(--accent) var(--progress), var(--surface-2) var(--progress));
}
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--surface-2); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border: 0;
  border-radius: 50%;
  background: var(--text);
}
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border: 0; border-radius: 50%; background: var(--text); }
input[type="range"]:disabled { opacity: .4; }

.controls { display: flex; align-items: center; justify-content: space-between; padding: 0 4px; }
.ctrl {
  position: relative;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--text);
}
.ctrl svg { width: 26px; height: 26px; }
.ctrl:active { background: var(--surface-2); }
.ctrl:disabled { opacity: .35; }
.ctrl.toggle { color: var(--muted); }
.ctrl.toggle svg { width: 22px; height: 22px; }
.ctrl.toggle[aria-pressed="true"], .ctrl.toggle[data-repeat="all"], .ctrl.toggle[data-repeat="one"] { color: var(--accent); }
.ctrl.toggle[aria-pressed="true"]::after, .ctrl.toggle[data-repeat="all"]::after, .ctrl.toggle[data-repeat="one"]::after {
  position: absolute;
  bottom: 6px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}
.repeat-one {
  position: absolute;
  top: 9px;
  right: 8px;
  display: none;
  min-width: 14px;
  height: 14px;
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: .62rem;
  font-weight: 800;
  line-height: 14px;
}
.ctrl[data-repeat="one"] .repeat-one { display: block; }
.ctrl.play {
  width: 64px;
  height: 64px;
  background: var(--text);
  color: var(--bg);
}
.ctrl.play:active { background: #344766; }
.ctrl.play svg { width: 30px; height: 30px; }

/* Sheets */
dialog.sheet {
  width: 100%;
  max-width: 560px;
  max-height: 90dvh;
  margin: auto auto 0;
  padding: 0;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background: var(--surface);
  color: var(--text);
  overflow: auto;
}
dialog.sheet[open] { animation: sheet-in .22s ease-out; }
dialog.sheet::backdrop { background: rgba(28, 41, 64, .32); backdrop-filter: blur(3px); }
@keyframes sheet-in { from { transform: translateY(40px); opacity: 0; } to { transform: none; opacity: 1; } }
@media (min-width: 640px) {
  dialog.sheet { margin: auto; border-bottom: 1px solid var(--line); border-radius: 24px; }
}

.sheet-body { display: grid; gap: 14px; padding: 22px 20px calc(var(--safe-bottom) + 20px); }
.sheet-body h2 { font-size: 1.15rem; overflow-wrap: anywhere; }
.hint { color: var(--muted); font-size: .9rem; line-height: 1.45; }
.hint.small { font-size: .8rem; margin-top: -8px; }
.field { display: grid; gap: 6px; }
.field span { font-size: .85rem; font-weight: 600; }
.field em, .check em { color: var(--muted); font-style: normal; font-weight: 400; }
.field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  font-size: 16px;
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.check { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.check input { width: 22px; height: 22px; accent-color: var(--accent); }
.form-error { color: var(--danger); font-size: .85rem; min-height: 1em; }
.form-error:empty { display: none; }

.sheet-actions { display: flex; justify-content: flex-end; gap: 10px; }
.sheet-actions .pill-button { flex: 1; }
.sheet-actions.stacked { flex-direction: column; }

.sheet-menu { display: grid; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.sheet-menu button {
  min-height: 50px;
  padding: 0 16px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: none;
  text-align: left;
  font-weight: 550;
}
.sheet-menu button:last-child { border-bottom: 0; }
.sheet-menu button:active { background: var(--surface-2); }
.sheet-menu button[hidden] { display: none; }
.sheet-menu button:disabled { color: var(--muted); }
.sheet-menu .danger { color: var(--danger); }

.details { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: .85rem; }
.details dt { color: var(--muted); }
.details dd { margin: 0; overflow-wrap: anywhere; }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--player-height) + var(--safe-bottom) + 16px);
  z-index: 30;
  max-width: min(92vw, 480px);
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--text);
  color: var(--bg);
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(28, 41, 64, .18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.error { background: var(--danger); color: #ffffff; }

button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 600px) and (min-height: 600px) {
  .app {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
  }
  .playlist-panel { flex: 1; display: flex; flex-direction: column; }
  .empty-state { flex: 1; align-content: center; }
}

@media (max-height: 560px) {
  .player {
    gap: 6px;
    padding: 8px 18px calc(var(--safe-bottom) + 8px);
  }
  .now-playing { gap: 10px; }
  .art { width: 36px; height: 36px; }
  .now-sub { display: none; }
  .seek { gap: 6px; }
  .ctrl { width: 44px; height: 44px; }
  .ctrl.play { width: 54px; height: 54px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}