:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111;
  color: #fff;
}

* { box-sizing: border-box; }

html, body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  background: radial-gradient(circle at 50% 20%, #272727 0, #141414 45%, #0b0b0b 100%);
}

button, input { font: inherit; }

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.player-shell {
  width: min(1100px, 96vw);
  border-radius: 14px;
  overflow: hidden;
  background: #080808;
  box-shadow: 0 20px 70px rgba(0,0,0,.6);
  border: 1px solid rgba(255,255,255,.08);
}

.video-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
  user-select: none;
}

video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

audio { display: none; }

.controls {
  position: absolute;
  inset: auto 0 0;
  padding: 38px 16px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,.94));
  opacity: 1;
  transition: opacity .22s ease;
}

.video-stage.controls-hidden .controls {
  opacity: 0;
  pointer-events: none;
}

.timeline {
  width: 100%;
  accent-color: #ff2f2f;
  cursor: pointer;
}

.main-row,
.left-controls,
.right-controls,
.track,
.status-bar {
  display: flex;
  align-items: center;
}

.main-row,
.status-bar {
  justify-content: space-between;
}

.left-controls,
.right-controls {
  gap: 7px;
}

button {
  min-width: 38px;
  height: 36px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: rgba(255,255,255,.14);
}

.time {
  margin-left: 6px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.dim { opacity: .55; }

.mixer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 10px;
  padding: 10px;
  background: rgba(24,24,24,.85);
  border-radius: 9px;
  backdrop-filter: blur(12px);
}

.track {
  min-width: 0;
  gap: 8px;
}

.track-name {
  width: 24px;
  font-size: 13px;
}

.track input {
  flex: 1;
  min-width: 80px;
  accent-color: #ff2f2f;
}

.track output {
  width: 42px;
  text-align: right;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.status-bar {
  gap: 16px;
  padding: 9px 13px;
  color: #bbb;
  background: #151515;
  font-size: 12px;
}

.settings-wrap { position: relative; }

.settings-menu {
  position: absolute;
  right: 0;
  bottom: 44px;
  width: 145px;
  padding: 8px;
  border-radius: 9px;
  background: rgba(28,28,28,.98);
  border: 1px solid rgba(255,255,255,.13);
  box-shadow: 0 12px 35px rgba(0,0,0,.55);
}

.settings-menu button {
  display: block;
  width: 100%;
  padding: 8px;
  text-align: left;
}

.settings-menu button.active {
  background: rgba(255,255,255,.14);
}

.menu-label {
  padding: 5px 8px;
  color: #aaa;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .07em;
}

.spinner {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 48px;
  height: 48px;
  margin: -24px 0 0 -24px;
  border: 5px solid rgba(255,255,255,.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

.video-stage:fullscreen {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
}

@media (max-width: 700px) {
  .page { padding: 0; }
  .player-shell {
    width: 100vw;
    border: 0;
    border-radius: 0;
  }
  .mixer {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .status-bar { display: none; }
}