:root {
  --bg: #040712;
  --bg-elevated: #060a16;
  --bg-elevated-soft: #090f1f;
  --accent: #16a34a;
  --accent-soft: rgba(22, 163, 74, 0.16);
  --accent-soft-strong: rgba(22, 163, 74, 0.55);
  --accent-soft-muted: rgba(148, 163, 184, 0.18);
  --accent-contrast: #e5e7eb;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.3);
  --radius-lg: 18px;
  --radius-pill: 1e5px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --shadow-subtle: 0 1px 0 rgba(148, 163, 184, 0.1);
  --transition-fast: 150ms ease-out;
  --transition-medium: 220ms ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: radial-gradient(circle at top, #020617 0, #020617 42%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

button,
input {
  font-family: inherit;
}

.app {
  min-height: 100vh;
  max-width: 100%;
  margin: 0;
  padding: 16px 16px 96px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 14px 18px;
  border-radius: 20px;
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.95),
      rgba(2, 6, 23, 0.96)
    );
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.28);
  align-items: stretch;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 14px;
  background: radial-gradient(circle at 20% 20%, #16a34a, #a5f3fc 50%, #000);
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(22, 163, 74, 0.45);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: inherit;
  border: 1px solid rgba(15, 23, 42, 0.45);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-title {
  font-size: 1.05rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.search-bar {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.search-bar input {
  flex: 1;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.32);
  padding: 10px 14px;
  font-size: 0.9rem;
  background: radial-gradient(
    circle at top left,
    rgba(15, 23, 42, 0.9),
    rgba(15, 23, 42, 0.98)
  );
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast), background var(--transition-medium);
}

.search-bar input::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.search-bar input:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.5);
  background: radial-gradient(
    circle at top left,
    rgba(22, 101, 52, 0.35),
    rgba(15, 23, 42, 0.98)
  );
}

.search-bar button {
  border-radius: 999px;
  border: 0;
  padding: 0 18px;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-contrast);
  background: radial-gradient(circle at top left, #16a34a, #0e7490);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 14px 35px rgba(22, 163, 74, 0.45);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    filter var(--transition-fast), background-position var(--transition-fast);
  background-size: 180% 180%;
  background-position: 0% 50%;
}

.search-bar button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 45px rgba(22, 163, 74, 0.55);
  background-position: 100% 50%;
}

.search-bar button:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.4);
  filter: brightness(0.95);
}

.app-main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 2.2fr);
  gap: 16px;
  align-items: stretch;
}

.sidebar {
  background: linear-gradient(160deg, var(--bg-elevated), #020617);
  border-radius: 22px;
  padding: 16px 16px 18px;
  border: 1px solid rgba(51, 65, 85, 0.8);
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 16px;
}

.section-title {
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.9);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-row button {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--accent-soft-muted);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-muted);
  font-size: 0.78rem;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast),
    color var(--transition-fast), transform var(--transition-fast);
}

.pill-row button:hover {
  transform: translateY(-1px);
  border-color: rgba(34, 197, 94, 0.6);
  color: var(--accent-contrast);
}

.pill-row .pill-active {
  background: var(--accent-soft);
  border-color: rgba(34, 197, 94, 0.9);
  color: var(--accent-contrast);
}

.meta-stats {
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(31, 41, 55, 0.9);
  background: radial-gradient(circle at top left, #020617, #020617 35%, #020617);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 10px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.stat-value {
  font-size: 0.95rem;
}

.content {
  background: linear-gradient(160deg, var(--bg-elevated-soft), #020617 65%);
  border-radius: 22px;
  padding: 12px 14px 12px;
  border: 1px solid rgba(22, 101, 52, 0.55);
  box-shadow: var(--shadow-soft);
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.status-bar {
  min-height: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 4px 2px 8px;
}

.status-bar.status-loading {
  color: var(--accent-contrast);
}

.status-bar.status-error {
  color: #fecaca;
}

.status-bar.status-success {
  color: #bbf7d0;
}

.track-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: auto;
  flex: 1;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: #020617 #020617;
}

.track-list::-webkit-scrollbar {
  width: 8px;
}

.track-list::-webkit-scrollbar-track {
  background: #020617;
}

.track-list::-webkit-scrollbar-thumb {
  background: #020617;
  border-radius: 999px;
  border: 1px solid rgba(31, 41, 55, 0.9);
}

.track-list::-webkit-scrollbar-thumb:hover {
  background: #030712;
}

.track-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1.6fr) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 14px;
  cursor: pointer;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(15, 23, 42, 0.9);
  transition: background var(--transition-fast), border-color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast);
}

.track-row:hover {
  background: rgba(17, 24, 39, 0.9);
  border-color: rgba(34, 197, 94, 0.75);
  transform: translateY(-1px);
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.8);
}

.track-row-active {
  background: radial-gradient(circle at left, var(--accent-soft-strong), #0f172a);
  border-color: rgba(34, 197, 94, 0.95);
}

.track-index {
  width: 24px;
  text-align: right;
  font-size: 0.78rem;
  color: rgba(148, 163, 184, 0.85);
}

.track-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.track-name {
  font-size: 0.86rem;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.track-artist {
  font-size: 0.75rem;
  color: rgba(148, 163, 184, 0.95);
}

.track-extra {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge {
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.95);
}

.track-duration-cell {
  font-size: 0.78rem;
  color: rgba(209, 213, 219, 0.9);
}

.empty-state {
  margin-top: 14px;
  padding: 18px 16px 16px;
  border-radius: 16px;
  border: 1px dashed rgba(148, 163, 184, 0.55);
   background: radial-gradient(circle at top left, rgba(34, 197, 94, 0.2), #020617);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.empty-state h3 {
  font-size: 0.9rem;
  margin: 0 0 4px;
  color: #e5e7eb;
}

.player-shell {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 14px;
  width: min(1120px, 100% - 18px);
  border-radius: 999px;
  border: 1px solid rgba(31, 41, 55, 0.9);
  padding: 10px 14px;
  background: radial-gradient(circle at top left, #020617, #020617 40%, #020617);
  box-shadow: var(--shadow-soft);
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 2.1fr) minmax(0, 1.3fr);
  gap: 10px;
  align-items: center;
}

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

.cover {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  background: radial-gradient(circle at center, #111827, #020617);
  border: 1px solid rgba(31, 41, 55, 0.9);
}

.cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.cover-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(148, 163, 184, 0.9);
  font-size: 1.3rem;
}

.cover-has-image img {
  display: block;
}

.cover-has-image .cover-placeholder {
  opacity: 0;
}

.meta-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.track-title {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.track-duration {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.player-center {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

.transport {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
}

.icon-button,
.play-button {
  border-radius: 999px;
  border: 1px solid rgba(31, 41, 55, 0.8);
  background: rgba(15, 23, 42, 0.9);
  color: var(--accent-contrast);
  cursor: pointer;
  padding: 6px 10px;
  font-size: 0.85rem;
  transition: background var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.icon-button:hover,
.play-button:hover {
  background: rgba(22, 101, 52, 0.8);
  border-color: rgba(22, 163, 74, 0.8);
  box-shadow: 0 10px 26px rgba(22, 163, 74, 0.5);
  transform: translateY(-1px);
}

.play-button {
  padding-inline: 18px;
  font-size: 0.95rem;
}

.icon-button.is-active {
  background: var(--accent-soft);
  border-color: rgba(22, 163, 74, 0.85);
  color: var(--accent-contrast);
}

.timeline {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.time-stamp {
  font-size: 0.75rem;
  color: var(--text-muted);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), rgba(15, 23, 42, 0.95));
}

input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), rgba(15, 23, 42, 0.95));
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  margin-top: -4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #e5e7eb;
  border: 1px solid rgba(15, 23, 42, 0.8);
  box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.38);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #e5e7eb;
  border: 1px solid rgba(15, 23, 42, 0.8);
  box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.38);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"]:active::-webkit-slider-thumb,
input[type="range"]:active::-moz-range-thumb {
  transform: scale(1.05);
  box-shadow: 0 0 0 6px rgba(22, 163, 74, 0.6);
}

.player-right {
  display: flex;
  justify-content: flex-end;
}

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

.volume-icon {
  font-size: 1rem;
  color: var(--text-muted);
}

.volume input[type="range"] {
  max-width: 120px;
}

@media (max-width: 900px) {
  .app-main {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    position: static;
    order: 2;
  }

  .content {
    order: 1;
  }

  .player-shell {
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 2.3fr);
    grid-template-rows: auto auto;
    row-gap: 6px;
  }

  .player-right {
    grid-column: span 2;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .app {
    padding-bottom: 120px;
  }

  .app-header {
    padding-inline: 14px;
  }

  .player-shell {
    bottom: 10px;
    padding-inline: 10px;
    grid-template-columns: minmax(0, 1fr);
  }

  .player-meta {
    justify-content: flex-start;
  }

  .player-center {
    width: 100%;
  }

  .track-list {
    max-height: min(420px, 50vh);
  }

  .track-row {
    grid-template-columns: auto minmax(0, 1.3fr) auto;
  }

  .track-extra {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}