:root {
  --black: #050504;
  --ivory: #eee5d2;
  --muted: #a89f8e;
  --red: #9f0d10;
  --red-bright: #d41d20;
  --red-text: #ef5b5e;
  --line: rgba(238, 229, 210, .2);
}

* { box-sizing: border-box; }

html, body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--black);
  color: var(--ivory);
  font-family: Arial, Helvetica, sans-serif;
}

body { overflow: hidden; }

button, input { font: inherit; }

.visualizer {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  min-height: 320px;
  overflow: hidden;
  background: var(--black);
}

#visualizer-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.screen-texture {
  pointer-events: none;
  position: absolute;
  inset: 0;
  opacity: .22;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 4px),
    radial-gradient(circle at 50% 45%, transparent 20%, rgba(0,0,0,.6) 100%);
  mix-blend-mode: screen;
}

.back-link {
  position: absolute;
  z-index: 6;
  top: clamp(82px, 9vw, 112px);
  left: clamp(20px, 4vw, 70px);
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(238,229,210,.28);
  color: var(--muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .17em;
  font-size: 9px;
}

.back-link:hover,
.back-link:focus-visible {
  border-color: var(--red-bright);
  color: var(--ivory);
  outline: none;
}

.visualizer-brand {
  position: absolute;
  z-index: 6;
  top: max(26px, env(safe-area-inset-top));
  right: max(clamp(20px, 4vw, 70px), env(safe-area-inset-right));
  color: var(--ivory);
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  column-gap: 20px;
  width: 92px;
  height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(238,229,210,.5);
  color: var(--ivory);
  font: 700 16px/1 Georgia, "Times New Roman", serif;
  letter-spacing: -.06em;
  transform: skew(-7deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  width: 3px;
  height: calc(100% + 10px);
  background: var(--red-bright);
  transform: rotate(18deg);
  box-shadow: 0 0 14px rgba(212,29,31,.35);
}

.brand-mark span:first-child {
  justify-self: end;
  transform: translateY(-4px) skew(7deg);
}

.brand-mark span:last-child {
  justify-self: start;
  transform: translateY(4px) skew(7deg);
}

.visualizer-brand:hover .brand-mark,
.visualizer-brand:focus-visible .brand-mark {
  border-color: var(--red-text);
}

.visualizer-brand:focus-visible {
  outline: 1px solid var(--red-text);
  outline-offset: 5px;
}

.controls {
  position: absolute;
  z-index: 5;
  right: clamp(20px, 4vw, 70px);
  bottom: max(clamp(28px, 4vw, 54px), calc(env(safe-area-inset-bottom) + 18px));
  left: clamp(20px, 4vw, 70px);
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: center;
  gap: clamp(15px, 2vw, 32px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.play-button {
  min-height: 44px;
  border: 1px solid rgba(238,229,210,.35);
  background: rgba(5,5,4,.74);
  color: var(--ivory);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 10px;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.play-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
}

.play-button:hover,
.play-button:focus-visible {
  border-color: var(--red-bright);
  outline: none;
}

.play-icon { color: var(--red-text); font-size: 9px; }

.timeline {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto;
  align-items: center;
  gap: 18px;
}

#scrubber {
  width: 100%;
  accent-color: var(--red-bright);
  cursor: pointer;
}

.volume-control {
  display: grid;
  grid-template-columns: auto minmax(70px, 120px) 38px;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid rgba(238,229,210,.35);
  background: rgba(5,5,4,.74);
  color: var(--ivory);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 9px;
  backdrop-filter: blur(10px);
}

#volume {
  width: 100%;
  accent-color: var(--red-bright);
  cursor: pointer;
}

#volume:focus-visible {
  outline: 1px solid var(--red-bright);
  outline-offset: 4px;
}

#volume-value {
  color: var(--muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.time-display {
  display: flex;
  gap: 6px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
}

.status {
  position: absolute;
  z-index: 5;
  right: clamp(20px, 4vw, 70px);
  bottom: max(8px, env(safe-area-inset-bottom));
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .15em;
  font-size: 8px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 720px) {
  .visualizer { min-height: 0; }
  .controls {
    grid-template-columns: 1fr;
    gap: 10px;
    bottom: max(42px, calc(env(safe-area-inset-bottom) + 34px));
  }
  .timeline {
    grid-column: 1;
    grid-row: 1;
  }
  .play-button,
  .volume-control { width: 100%; justify-content: center; }
  .play-button { grid-row: 2; }
  .volume-control { grid-row: 3; }
}

@media (max-width: 720px) and (max-height: 520px) {
  .controls {
    grid-template-columns: 1fr 1fr;
    gap: 10px 12px;
    bottom: max(34px, calc(env(safe-area-inset-bottom) + 26px));
  }
  .timeline { grid-column: 1 / -1; }
  .play-button { grid-column: 1; grid-row: 2; }
  .volume-control { grid-column: 2; grid-row: 2; }
}

@media (min-width: 721px) and (max-height: 520px) {
  .visualizer { min-height: 0; }
  .back-link { top: 62px; left: 28px; }
  .controls {
    right: 20px;
    left: 20px;
    grid-template-columns: minmax(180px, .8fr) minmax(220px, 1.5fr) minmax(210px, .9fr);
    gap: 12px;
    bottom: max(26px, calc(env(safe-area-inset-bottom) + 18px));
  }
  .play-button { padding-inline: 14px; letter-spacing: .14em; }
  .volume-control {
    grid-template-columns: auto minmax(60px, 1fr) 34px;
    padding-inline: 10px;
    letter-spacing: .1em;
  }
  .status { right: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .screen-texture { display: none; }
}