:root {
  --color-bg: #050505;
  --color-bg-accent: #101010;
  --color-surface: rgba(18, 18, 18, 0.88);
  --color-surface-border: rgba(255, 255, 255, 0.08);
  --color-text: #f5f5f5;
  --color-text-muted: rgba(245, 245, 245, 0.55);
  --color-highlight: #c43a3d;
  --color-highlight-soft: rgba(196, 58, 61, 0.16);
  --color-cta: #b72c37;
  --color-cta-text: #f8f8f8;
  --shadow-lg: 0 24px 60px -20px rgba(0, 0, 0, 0.85);
  --shadow-sm: 0 8px 20px -12px rgba(0, 0, 0, 0.8);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --transition: 200ms ease;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 3vw, 32px);
}

.player-shell {
  width: min(1080px, 100%);
}

.player-card {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: clamp(24px, 5vw, 48px);
  padding: clamp(24px, 4vw, 40px);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.player-card__art {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 20px;
}

.player-card__art-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.player-card__lyrics {
  background: rgba(15, 15, 15, 0.9);
  border: 1px solid rgba(255, 90, 88, 0.18);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: grid;
  gap: 12px;
}

.player-card__lyrics-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.player-card__lyrics-header h2 {
  margin: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-highlight);
}

.player-card__lyrics-subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.player-card__lyrics-text {
  margin: 0;
  white-space: pre-wrap;
  font-family: "Space Grotesk", monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  max-height: 260px;
  overflow-y: auto;
}

.player-card__lyrics-text::-webkit-scrollbar {
  width: 8px;
}

.player-card__lyrics-text::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
}

.player-card__lyrics-text::-webkit-scrollbar-thumb {
  background: rgba(20, 20, 20, 0.8);
  border-radius: 4px;
  border: 1px solid rgba(196, 58, 61, 0.2);
}

.player-card__lyrics-text::-webkit-scrollbar-thumb:hover {
  background: rgba(30, 30, 30, 0.9);
  border-color: rgba(196, 58, 61, 0.4);
}

.player-card__lyrics-text {
  scrollbar-width: thin;
  scrollbar-color: rgba(20, 20, 20, 0.8) rgba(0, 0, 0, 0.3);
}

.player-card__content {
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 4vw, 36px);
}

.player-card__header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.player-card__eyebrow {
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.3em;
  color: var(--color-text-muted);
  margin: 0;
}

.player-card__title {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
}

.player-card__subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.player-card__browser-note {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.player-card__tracklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.player-card__track {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.02);
  transition: border var(--transition), background var(--transition);
  cursor: pointer;
}

.player-card__track:hover {
  border-color: rgba(196, 58, 61, 0.35);
}

.player-card__track-number {
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
}

.player-card__track-title {
  font-weight: 500;
}

.player-card__track-duration {
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
}

.player-card__track.is-active {
  background: var(--color-highlight-soft);
  border-color: rgba(196, 58, 61, 0.45);
  color: var(--color-highlight);
}

.player-card__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.transport {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(9, 31, 44, 0.76);
  padding: 8px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(130, 205, 255, 0.14);
}

.transport__button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(130, 205, 255, 0.18);
  background: rgba(6, 18, 27, 0.78);
  color: var(--color-text);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border var(--transition);
}

.transport__button:hover,
.transport__button:focus-visible {
  border-color: rgba(196, 58, 61, 0.45);
}

.transport__button--primary {
  width: 56px;
  height: 56px;
  background: var(--color-cta);
  color: var(--color-cta-text);
  font-size: 18px;
  font-weight: 700;
  border: none;
  box-shadow: 0 12px 26px -12px rgba(183, 44, 55, 0.6);
}

.transport__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  margin-left: 2px;
}

.transport__button--primary:hover,
.transport__button--primary:focus-visible {
  border-color: rgba(196, 58, 61, 0.6);
}

.headtracking-toggle {
  border: 1px solid rgba(196, 58, 61, 0.24);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  background: rgba(6, 18, 27, 0.72);
  color: var(--color-text);
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 4px;
  align-items: center;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: border var(--transition), color var(--transition), background var(--transition);
  flex: 1;
}

.headtracking-toggle[aria-pressed="true"],
.headtracking-toggle.is-active {
  border-color: rgba(196, 58, 61, 0.75);
  color: var(--color-highlight);
  background: rgba(64, 18, 24, 0.9);
  box-shadow: 0 0 20px rgba(196, 58, 61, 0.3);
}

.headtracking-toggle:hover,
.headtracking-toggle:focus-visible {
  border-color: rgba(196, 58, 61, 0.4);
}

.headtracking-toggle__icon {
  grid-row: 1 / span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-highlight);
}

.headtracking-toggle__label {
  font-size: 1.05rem;
}

.headtracking-toggle__caption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.player-card__progress {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
}

.player-card__slider {
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  outline: none;
  position: relative;
}

.player-card__slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-highlight);
  border: 2px solid rgba(4, 12, 16, 0.92);
  box-shadow: 0 4px 20px -8px rgba(110, 247, 200, 0.75);
  cursor: pointer;
}

.player-card__slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-highlight);
  border: 2px solid rgba(4, 12, 16, 0.92);
  box-shadow: 0 4px 20px -8px rgba(110, 247, 200, 0.75);
  cursor: pointer;
}

.player-card__timecode {
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
}

.player-card__extras {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
}

.room-control {
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.room-control__select {
  background: rgba(18, 18, 18, 0.9);
  border: 1px solid rgba(196, 58, 61, 0.24);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: inherit;
  cursor: pointer;
}

.room-control__select:focus-visible {
  outline: 2px solid rgba(196, 58, 61, 0.55);
  outline-offset: 2px;
}

.headtracking-visual-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
}

#headtracking-visual {
  width: 85px;
  height: 85px;
  border-radius: 50%;
  border: 1px solid rgba(196, 58, 61, 0.25);
  background: radial-gradient(circle at 50% 30%, rgba(196, 58, 61, 0.15), rgba(10, 10, 10, 0.9));
  box-shadow: 0 12px 24px -18px rgba(0, 0, 0, 0.8);
}

.headtracking-status {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  min-height: 1.2em;
  line-height: 1.2;
}

.headtracking-status[data-state="active"] {
  color: var(--color-highlight);
}

.lyrics__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 10, 14, 0.68);
  backdrop-filter: blur(10px);
}

.lyrics__sheet {
  position: relative;
  width: min(680px, 92vw);
  max-height: min(540px, 82vh);
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius-lg);
  background: var(--color-bg-accent);
  border: 1px solid rgba(130, 205, 255, 0.22);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.lyrics__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.lyrics__header h2 {
  margin: 0;
  font-size: 1.4rem;
}

.lyrics__close {
  border: none;
  background: rgba(6, 18, 27, 0.8);
  color: var(--color-highlight);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 22px;
  cursor: pointer;
}

.lyrics__body {
  margin: 24px 0 0;
  font-family: "Space Grotesk", monospace;
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-y: auto;
  max-height: calc(100% - 72px);
}

@media (max-width: 960px) {
  .player-card {
    grid-template-columns: 1fr;
  }

  .player-card__art {
    max-width: 340px;
    justify-self: center;
  }

  .player-card__lyrics {
    max-width: 340px;
  }
}

@media (max-width: 600px) {
  body {
    padding: 24px;
  }

  .player-card {
    padding: 24px;
  }

  .transport {
    width: 100%;
    justify-content: space-between;
  }

  .transport__button--primary {
    width: 56px;
    height: 56px;
  }

  .player-card__progress {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    row-gap: 12px;
  }

  #duration {
    grid-column: 2;
    justify-self: end;
  }
}

.player-footer {
  margin-top: 24px;
  text-align: center;
}

.player-footer__copyright {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
}

.player-footer__copyright a {
  color: var(--color-highlight);
  text-decoration: none;
  transition: color var(--transition);
}

.player-footer__copyright a:hover {
  color: var(--color-text);
  text-decoration: underline;
}

/* Streaming Links */
.streaming-links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 20px;
  align-self: flex-start;
  margin-top: 26px;
}

.streaming-links--mobile {
  display: none;
  margin-left: 0;
  margin-top: 0;
}

.streaming-links--desktop {
  display: flex;
}

.streaming-link {
  display: block;
  opacity: 0.8;
  transition: opacity var(--transition), transform var(--transition);
  line-height: 0;
}

.streaming-link:hover {
  opacity: 1;
  transform: scale(1.1);
}

.streaming-link:focus {
  outline: 2px solid var(--color-highlight);
  outline-offset: 4px;
  border-radius: 6px;
}

.streaming-link__logo {
  width: 32px;
  height: 32px;
  display: block;
  object-fit: contain;
}

/* Mobile Warning */
.mobile-warning {
  background: rgba(196, 58, 61, 0.1);
  border: 1px solid rgba(196, 58, 61, 0.3);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 24px 0;
  text-align: center;
}

.mobile-warning__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* Mobile: show only on actual mobile devices */
.streaming-links--mobile.is-mobile {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 24px auto;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  gap: 20px;
  width: 100%;
}

/* Mobile Layout Reordering */
.player-card__content.is-mobile {
  display: flex;
  flex-direction: column;
}

.player-card__content.is-mobile [data-order="1"] { order: 1; }
.player-card__content.is-mobile [data-order="2"] { order: 2; }
.player-card__content.is-mobile [data-order="3"] { order: 3; }
.player-card__content.is-mobile [data-order="4"] { order: 4; }
.player-card__content.is-mobile [data-order="5"] { order: 5; }
.player-card__content.is-mobile [data-order="6"] { order: 6; }
.player-card__content.is-mobile [data-order="7"] { order: 7; }
.player-card__content.is-mobile [data-order="8"] { order: 8; }

/* Disabled State for Mobile Devices */
.is-disabled {
  opacity: 0.4;
  user-select: none;
}

.is-disabled.player-card__controls,
.is-disabled.player-card__progress {
  pointer-events: none;
}

.is-disabled.player-card__tracklist {
  opacity: 0.5;
}

.is-disabled .player-card__track {
  color: var(--color-text-muted);
  cursor: pointer;
}

.is-disabled .player-card__track:hover {
  opacity: 0.8;
}

.is-disabled .transport__button,
.is-disabled .headtracking-toggle,
.is-disabled .room-control__select,
.is-disabled .player-card__slider {
  cursor: not-allowed;
}

.is-disabled #headtracking-visual {
  border-color: rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle at 50% 30%, rgba(100, 100, 100, 0.1), rgba(10, 10, 10, 0.5));
}