:root {
  --bg: #050507;
  --fg: #e8e6e1;
  --fg-dim: #85848a;
  --fg-mid: #b9b7bc;
  --border: #34323a;
  --accent: #dcff00;
  --accent-dim: rgba(220, 255, 0, 0.12);
  --accent-2: #b36bff;
  --accent-2-dim: rgba(179, 107, 255, 0.16);
  --grid-line: rgba(255, 255, 255, 0.045);
  --panel-bg: rgba(5, 5, 7, 0.94);
  --reader-you: #9adfff;
  --reader-you-dim: rgba(154, 223, 255, 0.18);
}

* { box-sizing: border-box; }

.channel-page {
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--bg);
  background-size: 34px 34px;
  color: var(--fg);
}

.channel-page::before {
  content: '';
  position: fixed;
  z-index: 20;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(transparent 0 3px, rgba(0, 0, 0, 0.24) 4px);
  opacity: 0.55;
}

.channel-shell {
  width: min(1180px, calc(100% - 40px));
  min-height: 100dvh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
  border-inline: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.62);
}

.channel-header,
.channel-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border-block: 1px solid var(--border);
  color: var(--fg-dim);
  font: 11px/1.2 var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.channel-header span:last-child { color: var(--accent); }

.channel-stage {
  position: relative;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 46px 30px;
  isolation: isolate;
}

.channel-noise {
  position: absolute;
  z-index: -1;
  top: 12%;
  left: 50%;
  width: min(90%, 850px);
  overflow: hidden;
  color: var(--accent-2);
  font: 10px/1 var(--mono);
  letter-spacing: 12px;
  white-space: nowrap;
  opacity: 0.12;
  transform: translateX(-50%);
  animation: channel-slip 7s steps(2, end) infinite;
}

.channel-kicker {
  margin: 0 0 8px;
  color: var(--accent-2);
  font: 11px/1.3 var(--mono);
  letter-spacing: 2.2px;
  text-transform: uppercase;
}

.channel-stage h1 {
  margin: 0;
  font: normal clamp(46px, 7vw, 82px)/0.9 'VT323', monospace;
  letter-spacing: 2px;
}

.channel-intro {
  margin: 18px 0 30px;
  color: var(--fg-mid);
  font: clamp(20px, 2.3vw, 29px)/1.25 'VT323', monospace;
  text-align: center;
}

.channel-hands {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: center;
}

.channel-choice {
  position: relative;
  min-height: 390px;
  padding: 28px 22px 24px;
  border: 2px solid var(--fg-dim);
  background: rgba(0, 0, 0, 0.7);
  color: var(--fg);
  cursor: pointer;
  box-shadow: 7px 7px 0 var(--border);
  transition: border-color 160ms linear, color 160ms linear, transform 160ms ease, box-shadow 160ms ease;
}

.channel-choice--left { transform: rotate(-0.7deg); }
.channel-choice--right { transform: rotate(0.7deg); }

.channel-choice:hover,
.channel-choice:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: 0;
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--accent-2);
}

.channel-choice:disabled {
  cursor: default;
}

.channel-choice.is-selected {
  border-color: var(--accent);
  color: var(--accent);
  opacity: 1;
  filter: none;
}

.channel-choice.is-locked {
  opacity: 0.28;
  filter: grayscale(1) contrast(0.72);
}

.choice-index {
  position: absolute;
  top: 12px;
  left: 14px;
  color: var(--accent-2);
  font: 11px/1 var(--mono);
}

.hand-visual {
  position: relative;
  width: 100%;
  height: 265px;
  margin: -2px 0 10px;
  display: grid;
  place-items: center;
  overflow: hidden;
  animation: hand-drift 5.5s ease-in-out infinite;
}

.channel-choice--right .hand-visual { animation-delay: -2.2s; }

.channel-choice--left .palm-mark { left: 47%; }
.channel-choice--right .palm-mark { left: 52%; top: 64%; }

.hand-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  filter: contrast(1.08) brightness(1.12);
}

.palm-mark {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 66%;
  width: 72px;
  height: 46px;
  transform: translate(-50%, -50%);
  color: var(--accent-2);
  filter: drop-shadow(1px 0 rgba(33, 230, 255, 0.45));
}

.palm-mark--noise {
  display: grid;
  align-content: center;
  gap: 5px;
}

.palm-mark--noise i {
  display: block;
  height: 2px;
  background: currentColor;
  transform: translateX(var(--noise-x, 0));
}

.palm-mark--noise i:nth-child(1) { width: 72%; --noise-x: 12px; }
.palm-mark--noise i:nth-child(2) { width: 94%; --noise-x: -3px; }
.palm-mark--noise i:nth-child(3) { width: 58%; --noise-x: 18px; }
.palm-mark--noise i:nth-child(4) { width: 82%; --noise-x: 2px; }
.palm-mark--noise i:nth-child(5) { width: 46%; --noise-x: 25px; }

.palm-mark--signal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.palm-mark--signal i,
.carrier-wave i {
  width: 2px;
  height: var(--bar-height, 30%);
  background: currentColor;
  animation: signal-pulse var(--bar-speed, 1.8s) ease-in-out infinite alternate;
  animation-delay: var(--bar-delay, 0s);
}

.palm-mark--signal i:nth-child(1),
.carrier-wave i:nth-child(1) { --bar-height: 24%; --bar-speed: 1.7s; --bar-delay: -0.4s; }
.palm-mark--signal i:nth-child(2),
.carrier-wave i:nth-child(2) { --bar-height: 52%; --bar-speed: 2.1s; --bar-delay: -1.3s; }
.palm-mark--signal i:nth-child(3),
.carrier-wave i:nth-child(3) { --bar-height: 82%; --bar-speed: 1.5s; --bar-delay: -0.8s; }
.palm-mark--signal i:nth-child(4),
.carrier-wave i:nth-child(4) { --bar-height: 100%; --bar-speed: 2.4s; --bar-delay: -1.7s; }
.palm-mark--signal i:nth-child(5),
.carrier-wave i:nth-child(5) { --bar-height: 66%; --bar-speed: 1.9s; --bar-delay: -0.5s; }
.palm-mark--signal i:nth-child(6),
.carrier-wave i:nth-child(6) { --bar-height: 42%; --bar-speed: 2.2s; --bar-delay: -1.1s; }
.palm-mark--signal i:nth-child(7),
.carrier-wave i:nth-child(7) { --bar-height: 20%; --bar-speed: 1.6s; --bar-delay: -0.2s; }
.carrier-wave i:nth-child(8) { --bar-height: 58%; --bar-speed: 2.3s; --bar-delay: -1.5s; }
.carrier-wave i:nth-child(9) { --bar-height: 28%; --bar-speed: 1.8s; --bar-delay: -0.7s; }

.channel-choice strong,
.channel-choice small {
  display: block;
  font-family: var(--mono);
  font-weight: normal;
  letter-spacing: 2px;
}

.channel-choice strong { font-size: 15px; }
.channel-choice small { margin-top: 8px; color: var(--fg-dim); font-size: 11px; }

.choice-lock {
  position: absolute;
  z-index: 5;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  border: 1px solid var(--accent-2);
  background:
    repeating-linear-gradient(135deg, transparent 0 9px, rgba(179, 107, 255, 0.08) 10px 11px),
    rgba(5, 5, 7, 0.76);
  color: var(--accent-2);
  font: 12px/1 var(--mono);
  letter-spacing: 2px;
}

.choice-lock[hidden] { display: none; }
.choice-lock b { color: var(--fg-mid); font: normal 54px/0.7 'VT323', monospace; }

.channel-carrier {
  width: 70px;
  min-height: 150px;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  border-block: 1px solid var(--border);
  color: var(--accent-2);
  font: 9px/1 var(--mono);
  letter-spacing: 1px;
}

.carrier-wave {
  width: 42px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--accent-2);
}

.channel-carrier small { color: var(--fg-dim); font: inherit; }

.channel-result {
  width: min(560px, 100%);
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--accent);
  background: var(--bg);
  text-align: center;
}

.channel-result[hidden] { display: none; }
.channel-result span { color: var(--accent-2); font: 10px/1 var(--mono); letter-spacing: 2px; }
.channel-result p { margin: 13px 0 18px; font: 24px/1.2 'VT323', monospace; }
.channel-result a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  padding: 10px 16px;
  border: 1px solid var(--fg-dim);
  color: var(--fg);
  font: 12px/1 var(--mono);
  letter-spacing: 1.5px;
  text-decoration: none;
}
.channel-result a:hover,
.channel-result a:focus-visible { border-color: var(--accent); color: var(--accent); outline: 2px solid var(--accent); outline-offset: 3px; }

@keyframes hand-drift {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes signal-pulse {
  from { transform: scaleY(0.36) translateY(5px); opacity: 0.4; }
  to { transform: scaleY(1) translateY(-3px); opacity: 1; }
}

@keyframes channel-slip {
  0%, 88%, 100% { transform: translateX(-50%); clip-path: inset(0); }
  90% { transform: translateX(calc(-50% + 12px)); clip-path: inset(20% 0 55%); }
  94% { transform: translateX(calc(-50% - 7px)); clip-path: inset(62% 0 12%); }
}

@media (max-width: 720px) {
  .channel-shell { width: 100%; border-inline: 0; }
  .channel-header,
  .channel-footer { padding-inline: 20px; }
  .channel-header span:first-child,
  .channel-footer span:last-child { display: none; }
  .channel-stage { padding: 40px 20px 120px; }
  .channel-hands { grid-template-columns: 1fr 1fr; gap: 12px; }
  .channel-choice { min-height: 320px; padding: 24px 8px 18px; }
  .hand-visual { height: 205px; }
  .palm-mark { width: 50px; height: 34px; }
  .channel-choice strong { font-size: 12px; letter-spacing: 1px; }
  .channel-choice small { font-size: 12px; }
  .channel-carrier { width: 32px; min-height: 120px; }
  .carrier-wave { width: 26px; height: 54px; gap: 1px; }
}

@media (max-width: 430px) {
  .channel-hands { grid-template-columns: 1fr; gap: 20px; }
  .channel-carrier {
    width: 100%;
    min-height: 62px;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    padding-inline: 16px;
    border-block: 1px solid var(--border);
  }
  .carrier-wave { width: 100%; height: 38px; gap: 5px; }
  .channel-choice { width: 100%; min-height: 330px; }
  .hand-visual { height: 220px; }
}

body[data-motion='0'] .channel-noise,
body[data-motion='0'] .hand-visual,
body[data-motion='0'] .palm-mark--signal i,
body[data-motion='0'] .carrier-wave i { animation: none; }