:root {
  --bg: #080908;
  --fg: #f2f0e8;
  --muted: #aaa79d;
  --track-energy: 0;
  --track-kick: 0;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  color: var(--fg);
  background:
    radial-gradient(circle at 50% 46%, rgba(44, 57, 53, 0.23), transparent 38%),
    radial-gradient(circle at 0 0, rgba(242, 240, 232, 0.055), transparent 31rem),
    linear-gradient(180deg, #070807, #0a0b0a 56%, #070807);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

body {
  cursor: grab;
  user-select: none;
  touch-action: none;
}

body.brain-dragging {
  cursor: grabbing;
}

body::after {
  position: fixed;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.012) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 5rem 5rem;
  mask-image: radial-gradient(circle at center, black, transparent 72%);
  opacity: 0.42;
}

.brain-stage {
  position: fixed;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 900ms ease;
}

.brain-ready .brain-stage {
  opacity: 1;
}

.brain-webgl-canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

.brain-loading {
  position: fixed;
  z-index: 6;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 260ms ease, visibility 260ms step-end;
}

.brain-loading.is-active {
  opacity: 1;
  visibility: visible;
  transition: opacity 180ms ease, visibility 0ms step-start;
}

.brain-loading-content {
  width: min(18rem, calc(100vw - 3rem));
  padding: 1rem 1.15rem 0.92rem;
  border: 1px solid rgba(242, 240, 232, 0.13);
  border-radius: 8px;
  background: rgba(4, 5, 4, 0.58);
  box-shadow: 0 1.2rem 4rem rgba(0, 0, 0, 0.36), 0 0 2.6rem rgba(105, 216, 194, 0.06);
  backdrop-filter: blur(8px);
}

.brain-loading-label,
.brain-loading-detail {
  margin: 0;
  text-align: left;
  text-transform: uppercase;
}

.brain-loading-label {
  color: rgba(242, 240, 232, 0.94);
  font: 700 0.82rem / 1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.12em;
  text-shadow: 0 0 1.2rem rgba(105, 216, 194, 0.2);
}

.brain-loading-bar {
  position: relative;
  height: 3px;
  margin: 0.72rem 0 0.58rem;
  overflow: hidden;
  background: rgba(242, 240, 232, 0.12);
}

.brain-loading-bar span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 6%;
  background: linear-gradient(90deg, #d2a04b, #63e2c1 55%, #b8d7ff);
  box-shadow: 0 0 0.8rem rgba(99, 226, 193, 0.58);
  transition: width 240ms ease-out;
}

.brain-loading-bar span::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.92), transparent);
  transform: translateX(-100%);
  animation: brain-loading-scan 1.1s linear infinite;
}

.brain-loading-detail {
  overflow: hidden;
  color: rgba(242, 240, 232, 0.48);
  font: 700 0.52rem / 1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brain-loading.is-complete .brain-loading-bar span {
  background: #d9fff4;
}

.brain-loading.is-error .brain-loading-bar span {
  background: #ef8f47;
  box-shadow: 0 0 0.8rem rgba(239, 143, 71, 0.5);
}

@keyframes brain-loading-scan {
  to { transform: translateX(100%); }
}

.brain-fallback .brain-stage {
  opacity: 1;
  background: url("/assets/brain/brain-fallback.png") center / min(74rem, 94vw, 94vh) auto no-repeat;
  filter: invert(1) grayscale(1) contrast(1.35) brightness(0.78);
  mix-blend-mode: screen;
}

.brain-fallback .brain-webgl-canvas {
  display: none;
}

.status-page {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100vh;
  pointer-events: none;
}

.status-hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  text-align: center;
}

h1,
.track-title,
.track-time {
  position: absolute;
  left: 50%;
  z-index: 3;
  width: min(36rem, calc(100vw - 2rem));
  margin: 0;
  transform: translateX(-50%);
  text-transform: uppercase;
  text-shadow: 0 0 0.45rem rgba(243, 239, 224, 0.18), 0 0 1.4rem rgba(102, 215, 193, 0.08);
}

h1 {
  top: clamp(1rem, 3.1vh, 1.9rem);
  color: var(--fg);
  font: 700 clamp(0.95rem, 1.9vw, 1.45rem) / 1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.track-title {
  top: clamp(3.4rem, 7.8vh, 4.6rem);
  overflow: hidden;
  color: rgba(242, 240, 232, 0.78);
  font-size: clamp(0.52rem, 1.05vw, 0.76rem);
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-time {
  top: clamp(4.7rem, 10.7vh, 5.95rem);
  color: rgba(242, 240, 232, 0.5);
  font-size: clamp(0.54rem, 0.95vw, 0.7rem);
}

.track-signal {
  position: fixed;
  left: 50%;
  bottom: clamp(1.8rem, 5.5vh, 3.8rem);
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(6, 0.16rem);
  align-items: end;
  gap: 0.27rem;
  height: 2.2rem;
  transform: translateX(-50%);
  opacity: calc(0.26 + var(--track-energy) * 0.52);
}

.track-signal span {
  width: 100%;
  min-height: 0.25rem;
  height: calc(14% + var(--track-energy) * 45% + var(--track-kick) * 38%);
  border-radius: 999px;
  background: #eeeade;
  box-shadow: 0 0 0.5rem rgba(238, 234, 222, 0.35), 0 0 1.3rem rgba(105, 216, 194, 0.2);
  transform: scaleY(calc(0.68 + var(--track-energy) * 0.46 + var(--track-kick) * 0.24));
  transition: height 120ms linear, transform 160ms ease-out, opacity 240ms ease-out;
}

.track-signal span:nth-child(2),
.track-signal span:nth-child(5) { transform: scaleY(calc(0.82 + var(--track-energy) * 0.38)); }
.track-signal span:nth-child(3) { transform: scaleY(calc(0.58 + var(--track-kick) * 0.62)); }
.track-signal span:nth-child(4) { transform: scaleY(calc(0.74 + var(--track-energy) * 0.5)); }

.media-dock {
  position: fixed;
  left: clamp(0.65rem, 1.8vw, 1.2rem);
  bottom: clamp(0.65rem, 1.8vw, 1.2rem);
  z-index: 9;
  display: flex;
  flex-direction: column;
  width: min(360px, calc(100vw - 1.3rem));
  pointer-events: auto;
  cursor: default;
  user-select: auto;
  touch-action: auto;
}

.fish-shell {
  display: none;
}

.volume-control {
  --volume-level: 80%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 2.6rem;
  align-items: center;
  gap: 0.62rem;
  width: 100%;
  min-height: 2.25rem;
  margin: 0 0 0.5rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgba(242, 240, 232, 0.16);
  border-radius: 7px;
  background: rgba(5, 6, 5, 0.82);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(10px);
}

.volume-control label,
.volume-control output {
  color: rgba(242, 240, 232, 0.64);
  font: 700 0.58rem / 1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.volume-control output {
  color: #cbd5d1;
  text-align: right;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.volume-control input[type="range"] {
  width: 100%;
  height: 3px;
  margin: 0;
  appearance: none;
  border-radius: 999px;
  outline: none;
  cursor: ew-resize;
  background: linear-gradient(90deg, #cbd5d1 0 var(--volume-level), rgba(242, 240, 232, 0.15) var(--volume-level) 100%);
}

.volume-control input[type="range"]::-webkit-slider-thumb {
  width: 0.72rem;
  height: 0.72rem;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 50%;
  background: #d9dfdc;
  box-shadow: 0 0 0.6rem rgba(210, 224, 218, 0.24);
}

.volume-control input[type="range"]::-moz-range-thumb {
  width: 0.72rem;
  height: 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 50%;
  background: #d9dfdc;
  box-shadow: 0 0 0.6rem rgba(210, 224, 218, 0.24);
}

.volume-control input[type="range"]:focus-visible {
  outline: 1px solid rgba(203, 213, 209, 0.72);
  outline-offset: 4px;
}

.youtube-loader {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.45rem;
  width: 100%;
  margin: 0 0 0.5rem;
}

.youtube-loader input,
.youtube-loader button {
  min-width: 0;
  height: 2.35rem;
  border: 1px solid rgba(242, 240, 232, 0.18);
  border-radius: 6px;
  color: var(--fg);
  background: rgba(5, 6, 5, 0.86);
  backdrop-filter: blur(10px);
  font: 700 0.72rem / 1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.youtube-loader input {
  padding: 0 0.72rem;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.72);
}

.youtube-loader input:focus {
  border-color: rgba(105, 216, 194, 0.58);
  box-shadow: inset 0 0 0 1px #000, 0 0 1.2rem rgba(105, 216, 194, 0.12);
}

.youtube-loader button {
  padding: 0 0.88rem;
  cursor: pointer;
  text-transform: uppercase;
}

.youtube-loader button:disabled {
  cursor: wait;
  opacity: 0.54;
}

.youtube-status {
  grid-column: 1 / -1;
  min-height: 0.72rem;
  margin: -0.16rem 0 0;
  overflow: hidden;
  color: rgba(242, 240, 232, 0.56);
  font-size: 0.56rem;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.youtube-status[data-error="1"] {
  color: rgba(239, 143, 71, 0.92);
}

.lead-control {
  width: 100%;
  margin: 0 0 0.5rem;
  padding: 0.5rem 0.65rem 0.56rem;
  border: 1px solid rgba(242, 240, 232, 0.16);
  border-radius: 7px;
  background: rgba(5, 6, 5, 0.82);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(10px);
}

.lead-control-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.26rem;
  color: rgba(242, 240, 232, 0.64);
  font: 700 0.58rem / 1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.lead-control output {
  color: #72e7ce;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.lead-control input[type="range"] {
  display: block;
  width: 100%;
  height: 1rem;
  margin: 0;
  cursor: ew-resize;
  accent-color: #55efad;
}

.lead-control input[type="range"]:focus-visible {
  outline: 1px solid rgba(105, 216, 194, 0.72);
  outline-offset: 3px;
}

.player-shell {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(242, 240, 232, 0.18);
  border-radius: 8px;
  background: #030403;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.8), 0 0 2.3rem rgba(105, 216, 194, 0.07), 0 1.2rem 4rem rgba(0, 0, 0, 0.52);
}

.youtube-player,
.player-shell iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.analysis-loading .player-shell,
.brain-boot-loading .player-shell {
  pointer-events: none;
  opacity: 0.58;
  filter: grayscale(0.72) brightness(0.72);
  transition: opacity 180ms ease, filter 180ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .brain-stage {
    transition: none;
  }

  .brain-loading,
  .brain-loading-bar span,
  .analysis-loading .player-shell,
  .brain-boot-loading .player-shell {
    transition: none;
  }

  .brain-loading-bar span::after {
    animation: none;
  }

  .track-signal span { transition: none; }
}

@media (max-width: 720px) {
  .brain-fallback .brain-stage {
    background-position: center 28%;
    background-size: min(92vw, 54vh) auto;
  }

  h1 {
    top: 0.9rem;
    font-size: clamp(0.8rem, 3.4vw, 1rem);
  }

  .track-title {
    top: 2.9rem;
  }

  .track-time {
    top: 4rem;
  }

  .media-dock {
    left: 0.5rem;
    bottom: 0.5rem;
    width: min(320px, calc(100vw - 1rem));
  }

  .track-signal {
    right: 1.2rem;
    bottom: 1.2rem;
    left: auto;
    transform: none;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .brain-fallback .brain-stage {
    background-position: 76% 55%;
    background-size: min(43vw, 76vh) auto;
  }
}