:root {
  --bg: #0f1115;
  --bg2: #161b24;
  --card: rgba(12, 18, 27, 0.74);
  --line: rgba(148, 180, 206, 0.26);
  --text: #e8edf3;
  --muted: #9ab0c6;
  --accent: #16c6b7;
  --accent-2: #f4a259;
  --danger: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Plus Jakarta Sans", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #19344e 0, transparent 35%),
    radial-gradient(circle at 90% 0%, #4d2e1f 0, transparent 30%),
    linear-gradient(145deg, var(--bg), var(--bg2));
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.2;
  pointer-events: none;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px clamp(16px, 4vw, 54px);
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-switch button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}

.lang-switch button.active {
  border-color: transparent;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #091117;
  font-weight: 700;
}

.layout {
  width: min(1160px, calc(100% - 36px));
  margin: 10px auto 140px;
  display: grid;
  gap: 18px;
}

.hero h1 {
  margin: 8px 0;
  max-width: 840px;
  font-size: clamp(1.8rem, 4.2vw, 3.4rem);
  font-family: "Space Grotesk", sans-serif;
}

.tagline,
.subtitle,
.meta {
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  backdrop-filter: blur(16px);
}

.card h2 {
  margin: 0 0 12px;
  font-family: "Space Grotesk", sans-serif;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.form-grid {
  display: grid;
  gap: 10px;
}

.file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

input,
select,
button {
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 11px 14px;
  font-size: 0.95rem;
}

select {
  color-scheme: dark;
}

select option {
  background-color: #0f1520;
  color: var(--text);
}

select option:checked {
  background-color: #1f5eb8;
  color: #ffffff;
}

input::placeholder {
  color: #7f95a8;
}

button {
  cursor: pointer;
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  border: none;
  color: #0a1621;
  font-weight: 700;
}

.upload-dropzone {
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 16px;
  background: #080b11;
  min-height: 180px;
  padding: 20px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 8px;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

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

.upload-dropzone.is-dragover {
  border-color: var(--accent);
  background: #0c1420;
  transform: translateY(-1px);
}

.upload-dropzone-text {
  margin: 0;
  font-weight: 600;
}

.upload-choose-btn {
  border: none;
  background: #f1f2f4;
  color: #101217;
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 700;
}

.upload-filename {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.results,
.playlists {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.track-item,
.playlist-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
}

.track-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.track-title {
  font-weight: 700;
}

.track-sub {
  color: var(--muted);
  font-size: 0.9rem;
}

.track-left {
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}

.track-meta {
  min-width: 0;
}

.track-title,
.track-sub {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-play-btn {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #0f1520;
  color: #ffffff;
  cursor: pointer;
  font-size: 1.05rem;
  padding: 0;
  flex: 0 0 42px;
}

.track-play-btn.is-active {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  color: #0b1118;
  border-color: transparent;
}

.track-play-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.track-item audio {
  display: none !important;
}

.playlist-track-list {
  margin-top: 8px;
  display: grid;
  gap: 6px;
}

.playlist-track-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: center;
}

.playlist-track-btn {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #111925;
  color: #fff;
  cursor: pointer;
  padding: 0;
  font-size: 0.88rem;
}

.playlist-track-btn.is-active {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  color: #0b1118;
  border-color: transparent;
}

.playlist-track-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.playlist-track-name {
  color: var(--text);
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

a.source-link {
  color: #95ebff;
  text-decoration: none;
}

.warn {
  color: var(--danger);
}

.player-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: #121212;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 8px 14px;
}

.player-bar.is-empty {
  opacity: 0.92;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.player-icon-btn,
.player-main-btn {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: #1f1f1f;
  color: #fff;
  cursor: pointer;
  padding: 0;
}

.player-icon-btn {
  width: 34px;
  height: 34px;
  font-size: 0.95rem;
}

.player-main-btn {
  width: 40px;
  height: 40px;
  font-size: 1rem;
  background: linear-gradient(140deg, #ff7e2f, #ff5500);
  color: #fff;
  border: none;
}

.player-art-wrap {
  width: 56px;
  height: 56px;
  border-radius: 6px;
  overflow: hidden;
  flex: 0 0 56px;
  background: #242424;
}

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

.player-center {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.player-meta {
  display: flex;
  gap: 10px;
  align-items: baseline;
  min-width: 0;
}

.player-track-title {
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-track-artist {
  color: var(--muted);
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-progress-wrap {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
}

.player-time {
  font-size: 0.8rem;
  color: var(--muted);
  min-width: 34px;
  text-align: center;
}

#playerSeek {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}

#playerSeek::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff5500 var(--seek-progress, 0%), #4f4f4f var(--seek-progress, 0%));
}

#playerSeek::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #ff5500;
  border: none;
  margin-top: -4px;
}

#playerSeek::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: #4f4f4f;
}

#playerSeek::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: #ff5500;
}

.player-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

#playerVolume {
  width: 94px;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}

#playerVolume::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff5500 var(--volume-progress, 90%), #4f4f4f var(--volume-progress, 90%));
}

#playerVolume::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #ff5500;
  border: none;
  margin-top: -3px;
}

#playerVolume::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: #4f4f4f;
}

#playerVolume::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: #ff5500;
}

@media (max-width: 920px) {
  .split {
    grid-template-columns: 1fr;
  }

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

  .player-bar {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .player-art-wrap {
    display: none;
  }

  .player-right {
    justify-content: space-between;
  }
}