:root {
  color-scheme: dark;
  --ink: #e7dccb;
  --muted: #cbbba6;
  --brass: #e6d3b0;
  --metal: #2a2118;
  --plate-top: #3c362f;
  --plate-bottom: #221e19;
  --line: #5a5146;
  --danger: #c4452f;
  --bulb: 76px;
}

* { box-sizing: border-box; }

html {
  background: #090807;
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
}

html:has(body.phase-dark),
html:has(body.phase-ended) { background: #000; }

body {
  --load: 0;
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  color: var(--ink);
  font-family: "IBM Plex Sans JP", "Yu Gothic", "Hiragino Sans", sans-serif;
  font-weight: 300;
  background:
    radial-gradient(ellipse at 50% 20%, #2a241c 0%, #14110e 52%, #090807 100%);
  user-select: none;
}

body.phase-dark,
body.phase-ended {
  background: #000;
  cursor: default;
}

button,
input { touch-action: manipulation; font-family: inherit; }

button {
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}

:focus-visible {
  outline: 1px solid var(--brass);
  outline-offset: 3px;
}

body.phase-dark :focus-visible { outline: none; }

::selection { background: #a68456; color: #1a120c; }

#veil {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: transparent;
}

#scene {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body.phase-title #scene,
body.phase-dark #scene,
body.phase-ended #scene,
body.phase-title #veil,
body.phase-dark #veil,
body.phase-ended #veil { display: none; }

.topbar {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 22px 28px 0;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  font-size: 22px;
  letter-spacing: 0.18em;
}

.kicker {
  margin: 0;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.42em;
  color: #b9a48a;
}

.rooms {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.rooms button,
#settings-open {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(231, 220, 203, 0.28);
  letter-spacing: 0.16em;
  font-size: 13px;
  font-weight: 300;
  padding: 8px 14px;
}

.rooms button[aria-current="true"] {
  border-color: var(--brass);
  color: #f6ecdf;
}

.rooms button.is-locked { opacity: 0.38; }

.rooms button.is-deny { animation: deny 0.28s ease; }

@keyframes deny {
  25% { translate: -2px 0; }
  75% { translate: 2px 0; }
}

main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 18px 20px 120px;
}

.panel-wrap {
  width: min(100%, 480px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
}

.plate {
  position: relative;
  background:
    radial-gradient(circle at 12px 12px, #8d8478 1.4px, #3a342c 2.4px, transparent 3.2px),
    radial-gradient(circle at calc(100% - 12px) 12px, #8d8478 1.4px, #3a342c 2.4px, transparent 3.2px),
    radial-gradient(circle at 12px calc(100% - 12px), #8d8478 1.4px, #3a342c 2.4px, transparent 3.2px),
    radial-gradient(circle at calc(100% - 12px) calc(100% - 12px), #8d8478 1.4px, #3a342c 2.4px, transparent 3.2px),
    linear-gradient(180deg, var(--plate-top), var(--plate-bottom));
  border: 1px solid #6a6054;
  box-shadow:
    inset 0 1px 0 rgba(255, 236, 210, 0.16),
    0 18px 40px rgba(0, 0, 0, 0.35);
  padding: 22px 22px 18px;
}

#board { z-index: 1; }

.board-pane {
  width: 100%;
}

.screen-slide {
  position: fixed;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.screen-track {
  display: flex;
  width: 200%;
  height: 100%;
}

.screen-page {
  position: relative;
  flex: 0 0 50%;
  width: 50%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 20%, #2a241c 0%, #14110e 52%, #090807 100%);
}

.screen-shade {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.screen-track.to-next { animation: screen-next 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both; }
.screen-track.to-prev { animation: screen-prev 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both; }

@keyframes screen-next {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes screen-prev {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

.nameplate {
  text-align: center;
  letter-spacing: 0.2em;
  font-size: 13px;
  color: var(--brass);
  margin-bottom: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--bulb));
  gap: 14px 16px;
  justify-content: center;
}

#board[data-room="0"],
#board[data-room="1"],
#board[data-room="3"],
.board-pane[data-room="0"],
.board-pane[data-room="1"],
.board-pane[data-room="3"] { --bulb: 78px; }

.cell.is-front {
  z-index: 2;
  scale: 1.14;
}

.leak {
  position: absolute;
  z-index: 0;
  left: 50%;
  top: calc(var(--bulb) / 2);
  width: calc(var(--bulb) * 2);
  height: calc(var(--bulb) * 2);
  border-radius: 50%;
  background: radial-gradient(
    closest-side,
    rgba(255, 226, 160, 0.95) 46%,
    rgba(255, 168, 64, 0.6) 58%,
    rgba(255, 110, 24, 0.18) 78%,
    rgba(255, 110, 24, 0) 100%
  );
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.12s ease;
  pointer-events: none;
}

.leak.on { opacity: 1; }

.toggle {
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  letter-spacing: 0.22em;
  font-size: 12px;
}

.switch-plate {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 92px;
  overflow: hidden;
  border-radius: 4px;
  background: linear-gradient(90deg, #cfc8b8, #f1ece1 22%, #ebe5d8 70%, #c9c1b0);
  border: 1px solid #a89f8e;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 10px 18px rgba(0, 0, 0, 0.45);
}

.switch-terminals {
  display: flex;
  justify-content: space-around;
  align-items: center;
  align-self: stretch;
  height: 20px;
  background: linear-gradient(#5b554c, #3a352f);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.6);
}

.switch-screw {
  position: relative;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #f4f1ea, #a9a397 55%, #55504a);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.6);
}

.switch-screw::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  top: 50%;
  height: 1.5px;
  translate: 0 -50%;
  rotate: -35deg;
  background: #4a453e;
}

.switch-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  color: #3a332b;
  line-height: 1;
}

.switch-kind {
  font-size: 10px;
  letter-spacing: 0.1em;
}

.switch-amps {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.toggle-word {
  line-height: 1;
  color: #9a9184;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.12em;
}

.toggle[aria-pressed="true"] .toggle-word.on,
.toggle[aria-pressed="false"] .toggle-word.off { color: #1e1a16; }

.switch-well {
  position: relative;
  width: 30px;
  height: 62px;
  border-radius: 3px;
  background: #1a1714;
  box-shadow: inset 0 3px 7px rgba(0, 0, 0, 0.75), 0 0 0 2px #d9d2c3, 0 0 0 3px #a89f8e;
}

.switch-test {
  display: flex;
  margin-bottom: 4px;
}

.switch-test-button {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: linear-gradient(#ffe36b, #d9a814);
  box-shadow: 0 1px 0 #7a5a08, inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.switch-lever {
  position: absolute;
  left: 4px;
  top: 3px;
  width: 22px;
  height: 32px;
  border-radius: 2px;
  background: linear-gradient(90deg, #7a6748, #f6ecdf 46%, #b9a48a);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 3px 0 #2a2118;
  transition: top 0.08s ease;
}

.toggle[aria-pressed="false"] .switch-lever { top: 27px; }

.toggle:active .switch-lever { filter: brightness(0.92); }

.kana-row {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 6px;
  align-items: end;
}

.kana-row .cell { width: 100%; }

.kana {
  font-family: "Shippori Mincho", serif;
  font-size: 15px;
  line-height: 1;
  color: var(--brass);
}

.kana-row .bulb {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
}

.cell.is-quiet { cursor: default; }
.cell.is-quiet:active .bulb { scale: 1; }

.glass-cap {
  position: absolute;
  z-index: 4;
  left: 50%;
  top: -12px;
  width: calc(var(--bulb) + 26px);
  height: calc(var(--bulb) + 30px);
  transform: translateX(-50%);
  overflow: hidden;
  pointer-events: none;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.95);
  background: linear-gradient(122deg, rgba(255, 255, 255, 0.62) 0%, rgba(255, 255, 255, 0.12) 16%, rgba(255, 255, 255, 0) 40%);
  box-shadow:
    inset 0 0 0 8px rgba(236, 224, 204, 0.82),
    inset 0 0 0 10px rgba(74, 67, 59, 0.95),
    0 10px 18px rgba(0, 0, 0, 0.4);
}

.glass-cap::after {
  content: "";
  position: absolute;
  width: 80%;
  height: 80%;
  left: var(--mx, 28%);
  top: var(--my, 18%);
  translate: -50% -50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0) 68%);
}

.glass-cap .sheen { width: 36%; }

.glass-cap.is-tapped {
  box-shadow:
    inset 0 0 0 8px rgba(236, 224, 204, 0.82),
    inset 0 0 0 10px rgba(74, 67, 59, 0.95),
    0 0 22px rgba(255, 255, 255, 0.55);
}

.cell {
  position: relative;
  z-index: 1;
  width: var(--bulb);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
}

.cell:active .bulb { scale: 0.96; }
.bulb {
  z-index: 1;
  width: var(--bulb);
  height: var(--bulb);
  border-radius: 50%;
  position: relative;
  background: radial-gradient(circle at 50% 58%, #2c261f 0%, #12100e 72%);
  box-shadow:
    inset 0 8px 12px rgba(255, 255, 255, 0.05),
    inset 0 -12px 16px rgba(0, 0, 0, 0.65),
    0 1px 0 rgba(255, 255, 255, 0.08);
  transition: background 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.bulb::before {
  content: "";
  position: absolute;
  width: 30%;
  height: 16%;
  left: 22%;
  top: 16%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  transform: rotate(-18deg);
}

.bulb.on {
  animation: filament 1.8s ease-in-out infinite;
  background: radial-gradient(circle at 50% 42%, #fff6d8 0%, #ffc45a 30%, #e07a1a 64%, #6d320c 100%);
  box-shadow:
    0 0 12px 2px rgba(255, 186, 80, 0.9),
    0 0 34px 8px rgba(255, 140, 40, 0.42),
    0 0 80px 18px rgba(255, 100, 20, 0.16),
    inset 0 -8px 12px rgba(120, 40, 0, 0.25);
}

.bulb.on::after {
  content: "";
  position: absolute;
  width: 26%;
  height: 26%;
  left: 37%;
  top: 34%;
  border-radius: 50%;
  background: white;
  filter: blur(1px);
}

.socket {
  position: relative;
  z-index: 1;
  width: 42%;
  height: 9px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(#6a6156, #2a261f);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.chamber {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0;
}

.rear {
  display: none;
  position: absolute;
  z-index: 0;
  top: 0;
  left: 50%;
  flex-direction: column;
  align-items: center;
  translate: -50% 0;
  pointer-events: none;
}

.drop-lead {
  width: 4px;
  height: 40px;
  border-radius: 2px;
  background: linear-gradient(90deg, #161310, #6a6156 46%, #241f1a);
  pointer-events: none;
}

.breaker-art.live + .drop-lead {
  background: linear-gradient(90deg, #7a3d12, #ffd08a 46%, #c56a28);
  box-shadow: 0 0 calc(6px + var(--load) * 10px) rgba(255, 120, 30, calc(0.3 + var(--load) * 0.7));
}

.vault {
  position: relative;
  z-index: 1;
  margin-top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.glass {
  position: relative;
  width: min(250px, 72vw);
  height: 300px;
  cursor: default;
  background: radial-gradient(circle at 50% 38%, rgba(255, 170, 60, 0.42), transparent 48%);
}

.bulb.sealed {
  --bulb: 96px;
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 38%;
  translate: -50% -50%;
  pointer-events: none;
}

.bulb.sealed.on {
  box-shadow:
    0 0 16px 4px rgba(255, 214, 140, 1),
    0 0 48px 14px rgba(255, 150, 40, 0.85),
    0 0 110px 28px rgba(255, 110, 20, 0.4);
}

.pedestal {
  position: absolute;
  z-index: 2;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 18px;
  background: linear-gradient(#7a7164, #2c2822);
  border: 1px solid #a89880;
  box-shadow: 0 10px 16px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.glass-face {
  position: absolute;
  z-index: 3;
  inset: 0 0 18px;
  overflow: hidden;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.86);
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.34) 0%, rgba(255, 255, 255, 0) 26%, rgba(255, 255, 255, 0) 100%);
  box-shadow:
    inset 0 0 0 8px rgba(232, 216, 190, 0.38),
    0 16px 28px rgba(0, 0, 0, 0.32);
}

.glass-face::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  left: var(--mx, 24%);
  top: var(--my, 16%);
  translate: -50% -50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0) 70%);
}

.sheen {
  position: absolute;
  top: -10%;
  bottom: -10%;
  width: 28%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
  animation: sheen 7.5s ease-in-out infinite;
}

@keyframes sheen {
  0% { transform: translateX(-80%); }
  50% { transform: translateX(220%); }
  100% { transform: translateX(220%); }
}

.glass.is-tapped .glass-face {
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.3),
    0 0 24px rgba(255, 255, 255, 0.16);
}

.vault-label {
  margin: 0;
  text-align: center;
  letter-spacing: 0.18em;
  line-height: 1.9;
  font-size: 12px;
  color: var(--brass);
  white-space: pre-line;
}

.cord {
  position: absolute;
  z-index: 0;
  left: 50%;
  bottom: -16px;
  width: 4px;
  height: 34px;
  border-radius: 2px;
  background: linear-gradient(90deg, #161310 0%, #6a6156 46%, #241f1a 100%);
  box-shadow: 1px 0 0 rgba(0, 0, 0, 0.45);
  transform: translateX(-50%);
  pointer-events: none;
}

.cell[aria-pressed="true"] .cord,
.cord.live {
  background: linear-gradient(90deg, #7a3d12 0%, #ffd08a 46%, #c56a28 100%);
  box-shadow:
    0 0 6px rgba(255, 176, 70, 0.9),
    0 0 calc(6px + var(--load) * 14px) rgba(255, 110, 24, calc(0.2 + var(--load) * 0.75));
  animation: shiver calc(0.22s - var(--load) * 0.12s) linear infinite;
}

.cord.sealed-lead {
  z-index: 2;
  bottom: -24px;
  height: 42px;
}

.harness {
  position: relative;
  height: 20px;
  margin: 8px 8px 0;
}

.bus {
  position: absolute;
  left: 8%;
  right: 0;
  top: 6px;
  height: 7px;
  border-radius: 4px 0 0 4px;
  background: linear-gradient(#4a433c, #1a1714);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 0 calc(var(--load) * 16px) rgba(255, 140, 40, calc(var(--load) * 0.9));
}

.grommet {
  position: absolute;
  right: -30px;
  top: 1px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 186, 90, calc(var(--load) * 0.85)) 0 3px, #120f0c 4px, #6d6458 6px, #241f1a 8px);
  box-shadow: 0 0 calc(var(--load) * 12px) rgba(255, 150, 40, calc(var(--load) * 0.8));
}

.switch-case .switch-plate {
  position: relative;
}

.switch-case .bolt {
  width: 8px;
  height: 12px;
  fill: #d9a814;
  stroke: #3a332b;
  stroke-width: 1.2;
  pointer-events: none;
}

.switch-case {
  position: fixed;
  z-index: 3;
  cursor: default;
}

.switch-case .toggle { pointer-events: none; }
.switch-case .switch-lever {
  background: linear-gradient(90deg, #6e1410, #e8483c 46%, #a3211a);
  box-shadow:
    inset 0 1px 0 rgba(255, 200, 190, 0.45),
    0 3px 0 #2a0c0a;
  transition: top 0.22s ease;
}

.switch-case .glass-cap {
  top: -12px;
  width: 124px;
  height: calc(100% + 24px);
}

.trunk {
  position: relative;
  height: 22px;
  margin: 12px 8px 0;
}

.trunk .bus,
.trunk.ends .bus {
  position: fixed;
  z-index: 2;
  left: 0;
  right: 0;
  width: auto;
  border-radius: 0;
  pointer-events: none;
}

.switch-case .riser {
  z-index: 5;
  left: 50%;
  right: auto;
  bottom: -22px;
  height: 34px;
  transform: translateX(-50%);
}

.riser {
  position: absolute;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, #161310, #6a6156 46%, #241f1a);
  pointer-events: none;
}

.trunk.live .bus,
.trunk.live .riser,
.riser.live {
  background: linear-gradient(#7a3d12, #ffd08a 46%, #c56a28);
  box-shadow: 0 0 6px rgba(255, 176, 70, 0.9);
}

body.strain .cell[aria-pressed="true"] .cord,
body.strain .cord.live {
  animation-duration: 0.05s;
}

body.strain .cell[aria-pressed="true"] .cord::after,
body.strain .cord.live::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 35%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff6df;
  box-shadow: 0 0 8px #ffb15a;
  opacity: 0;
  animation: spark 0.42s steps(2) infinite;
}

.cell:nth-child(3n) .cord::after { animation-delay: 0.14s; }
.cell:nth-child(4n) .cord::after { animation-delay: 0.27s; }

@keyframes shiver {
  50% { transform: translateX(calc(-50% + 1.5px)); }
}

@keyframes spark {
  0%, 72% { opacity: 0; }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes filament {
  50% { filter: brightness(1.12); }
}

#rule {
  position: relative;
  z-index: 5;
  min-height: 0;
  margin: 0;
  text-align: center;
  font-size: 13px;
  line-height: 1.85;
  letter-spacing: 0.04em;
  color: var(--muted);
}

#reset-room {
  position: fixed;
  z-index: 9;
  top: calc(max(16px, env(safe-area-inset-top)) + 40px);
  left: max(16px, env(safe-area-inset-left));
  margin: 0;
  padding: 8px 2px;
  text-align: left;
}

body.phase-title #reset-room,
body.phase-dark #reset-room,
body.phase-ended #reset-room,
body.phase-tripping #reset-room {
  visibility: hidden;
  pointer-events: none;
}

#rules-open {
  position: fixed;
  z-index: 9;
  top: calc(max(16px, env(safe-area-inset-top)) + 80px);
  left: max(16px, env(safe-area-inset-left));
  margin: 0;
  padding: 8px 2px;
  text-align: left;
}

#rules-panel {
  position: fixed;
  z-index: 12;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: min(420px, calc(100vw - 32px));
  padding: 26px 20px 22px;
  background: #16130f;
  border: 1px solid var(--line);
  box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0.55), 0 18px 40px rgba(0, 0, 0, 0.5);
}

#rules-panel[hidden] { display: none; }

#rules-panel .rules { margin: 0; }

body:not(.phase-play) #rules-open,
body:not(.phase-play) #rules-panel {
  visibility: hidden;
  pointer-events: none;
}

#undo {
  position: fixed;
  z-index: 9;
  top: max(16px, env(safe-area-inset-top));
  left: max(16px, env(safe-area-inset-left));
  padding: 8px 2px;
  background: none;
  border: 0;
  color: #b5a690;
  letter-spacing: 0.16em;
  font-size: 13px;
  font-weight: 300;
}

#undo:hover:not(:disabled) { color: #f3e6d2; }

#kana-echo {
  position: fixed;
  z-index: 4;
  left: 50%;
  bottom: calc(max(28px, env(safe-area-inset-bottom)) + 64px);
  margin: 0;
  transform: translateX(-50%);
  color: #f3e6d2;
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  font-size: 40px;
  line-height: 1;
  text-shadow: 0 0 14px rgba(255, 186, 80, 0.55);
  pointer-events: none;
}

#kana-echo.is-shown { animation: kana-pop 0.24s ease-out; }

@keyframes kana-pop {
  from { opacity: 0; transform: translateX(-50%) translateY(6px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

#debug-all-on {
  position: fixed;
  z-index: 9;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(16px, env(safe-area-inset-bottom));
  padding: 8px 12px;
  border: 1px dashed #c0392b;
  background: rgba(0, 0, 0, 0.6);
  color: #ff8a7a;
  letter-spacing: 0.16em;
  font-size: 12px;
}

#debug-all-on[hidden],
body:not(.phase-play) #debug-all-on { display: none; }

#undo:disabled {
  opacity: 0.38;
  cursor: default;
}

body.phase-title #undo,
body.phase-ended #undo {
  visibility: hidden;
  pointer-events: none;
}

body.phase-dark #undo {
  color: #e7dccb;
  cursor: pointer;
}

body.phase-dark #undo:disabled { cursor: default; }

#clear-btn {
  position: fixed;
  z-index: 4;
  left: 50%;
  bottom: max(28px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: 168px;
  height: 52px;
  padding: 0;
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: transparent;
  box-shadow: none;
  letter-spacing: 0.22em;
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  font-size: 16px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  cursor: default;
}

#clear-btn.ready {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  color: var(--metal);
  border-color: #f3e7d4;
  background: linear-gradient(#efe2cf, #c9b394);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  animation: appear 0.4s ease;
}

@keyframes appear {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

body.phase-dark #clear-btn {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  background: #000;
  color: #000;
  border-color: #000;
  box-shadow: none;
  animation: none;
  transition: none;
}

body.phase-dark #flash,
body.phase-ended #flash,
body.phase-play #flash {
  opacity: 0;
  animation: none;
  background: #000;
}

body.phase-title #clear-btn,
body.phase-ended #clear-btn,
body.phase-tripping #clear-btn {
  visibility: hidden;
  pointer-events: none;
}

body.phase-ended #clear-btn.ready {
  z-index: 9;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  color: var(--metal);
  border-color: #f3e7d4;
  background: linear-gradient(#efe2cf, #c9b394);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.metal {
  min-width: 168px;
  height: 52px;
  padding: 0 22px;
  border: 1px solid #f3e7d4;
  background: linear-gradient(#efe2cf, #c9b394);
  color: var(--metal);
  letter-spacing: 0.22em;
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  font-size: 16px;
}

.metal:hover,
#clear-btn.ready:hover,
#settings-open:hover,
.rooms button:hover { filter: brightness(1.06); }

.quiet {
  background: none;
  border: 0;
  color: #b5a690;
  letter-spacing: 0.16em;
  font-size: 13px;
  font-weight: 300;
  padding: 8px;
}

.quiet:hover { color: #f3e6d2; }

#settings {
  position: fixed;
  z-index: 6;
  top: 68px;
  right: 22px;
  width: min(300px, calc(100vw - 24px));
  padding: 16px 16px 10px;
  background: #16130f;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
}

body.phase-title #settings,
body.phase-dark #settings,
body.phase-ended #settings,
body.phase-tripping #settings { display: none !important; }

.settings-title {
  margin: 0 0 14px;
  letter-spacing: 0.22em;
  font-size: 13px;
}

.settings-grid {
  display: flex;
  flex-direction: column;
}

.slider-block {
  position: relative;
  margin-bottom: 16px;
}

.slider-block:last-of-type { margin-bottom: 0; }

.breaker-art {
  display: flex;
  justify-content: center;
}

.glass.breaker-glass {
  width: 112px;
  height: 132px;
  flex: none;
  background: none;
  pointer-events: auto;
  cursor: default;
}

.breaker-art.live .breaker-glass {
  background: radial-gradient(circle at 50% 48%, rgba(255, 170, 60, calc(0.12 + var(--load) * 0.34)), rgba(255, 170, 60, 0) 64%);
}

.breaker-glass .glass-face {
  inset: 0 0 10px;
}

.breaker-glass .pedestal {
  left: 8px;
  right: 8px;
  height: 10px;
}

.breaker-glass .breaker-box {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 46%;
  translate: -50% -50%;
}

.breaker-box {
  position: relative;
  width: 74px;
  height: 88px;
  flex: none;
  border: 1px solid #cbbba4;
  border-radius: 3px;
  background:
    linear-gradient(180deg, rgba(255, 236, 210, 0.1), rgba(255, 236, 210, 0) 22%),
    linear-gradient(180deg, #4a433c 0%, #241f1a 42%, #100e0c 100%);
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 236, 210, 0.28);
}

.breaker-art.live .breaker-box {
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 236, 210, 0.28),
    0 0 calc(8px + var(--load) * 16px) rgba(255, 150, 40, calc(0.25 + var(--load) * 0.7));
}

.mark,
.pos {
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  line-height: 1;
}

.mark {
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.28em;
  text-indent: 0.28em;
  color: #f3e6d2;
}

.gauge {
  position: absolute;
  left: 5px;
  top: 28px;
  bottom: 12px;
  width: 5px;
  display: flex;
  flex-direction: column-reverse;
  gap: 3px;
}

.gauge .seg {
  flex: 1;
  border-radius: 1px;
  background: #2c2822;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.45);
}

.gauge .seg.is-lit {
  background: linear-gradient(#fff6d2, #e07a1a);
  box-shadow: 0 0 6px rgba(255, 160, 50, 0.95);
}

.pos {
  position: absolute;
  right: 10px;
  font-size: 12px;
  color: #6a6156;
}

.pos.on { top: 30px; right: 8px; }
.pos.off { right: 8px; bottom: 16px; }

.breaker-art.live .pos.on {
  color: #fff6df;
  text-shadow: 0 0 8px rgba(255, 176, 70, 0.95);
}

.jaw {
  position: absolute;
  left: 46px;
  top: 34px;
  width: 16px;
  height: 5px;
  border-radius: 1px;
  background: linear-gradient(#8a8378, #2a2622);
}

.breaker-art.live .jaw {
  background: linear-gradient(#fff6d8, #e07a1a);
  box-shadow: 0 0 8px rgba(255, 176, 70, 0.95);
}

.arc {
  position: absolute;
  left: 42px;
  top: 26px;
  width: 24px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 250, 236, 0.95), rgba(255, 176, 70, 0.45) 42%, rgba(255, 120, 20, 0) 72%);
  opacity: 0;
}

.breaker-art.live .arc { opacity: 1; }

.lever {
  position: absolute;
  z-index: 1;
  left: 30px;
  bottom: 24px;
  width: 4px;
  height: 48px;
  transform-origin: 50% 100%;
  transform: rotate(54deg);
  border-radius: 1px;
  background: linear-gradient(90deg, #6a4a28, #f6e7c8 55%, #8a6234);
  transition: transform 0.28s ease;
}

.lever::after {
  content: "";
  position: absolute;
  top: 0;
  left: -2px;
  width: 8px;
  height: 3px;
  border-radius: 1px;
  background: #cbbba4;
}

.breaker-art.live .lever {
  transform: rotate(16deg);
  box-shadow: 0 0 8px rgba(255, 170, 60, 0.7);
}

.breaker-art.live .lever::after {
  background: #fff1c4;
  box-shadow: 0 0 6px rgba(255, 196, 90, 0.95);
}

.pivot {
  position: absolute;
  z-index: 2;
  left: 27px;
  bottom: 20px;
  width: 10px;
  height: 10px;
  border-radius: 1px;
  background: linear-gradient(135deg, #f3e6d2, #6e675e 46%, #241f1a);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.4);
}

body.strain .breaker-art.live .lever { animation: shiver-lever 0.06s linear infinite; }
body.strain .breaker-art.live .arc { animation: arc-flicker 0.18s steps(2) infinite; }

@keyframes shiver-lever {
  50% { transform: rotate(20deg); }
}

@keyframes arc-flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.slider-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.slider-head span {
  font-variant-numeric: tabular-nums;
  color: var(--brass);
}

.slider-head span.is-max { color: #fff1d4; }

.slider-line {
  position: relative;
  margin-top: 8px;
}

.slider-line::before {
  content: "";
  position: absolute;
  z-index: 0;
  left: 0;
  top: 50%;
  width: var(--p, 0%);
  height: 4px;
  transform: translateY(-50%);
  border-radius: 2px;
  background-color: #ffb15a;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(255, 214, 150, 0) 0 10px,
    rgba(255, 246, 216, 0.45) 28px,
    #fff8e6 42px,
    rgba(255, 246, 216, 0.45) 56px,
    rgba(255, 214, 150, 0) 74px,
    rgba(255, 214, 150, 0) 108px
  );
  animation: gauge-current 0.7s linear infinite;
  box-shadow:
    0 0 6px rgba(255, 214, 150, 0.95),
    0 0 14px rgba(255, 140, 40, 0.85);
  pointer-events: none;
}

@keyframes gauge-current {
  from { background-position: 0 0; }
  to { background-position: 108px 0; }
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 4px;
  margin: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(224, 122, 26, 0) var(--p, 0%), #5c5348 var(--p, 0%));
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff6e4;
  border: 0;
  box-shadow:
    0 0 0 1px #6a5c48,
    0 0 8px rgba(255, 176, 70, 0.95);
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff6e4;
  border: 0;
  box-shadow:
    0 0 0 1px #6a5c48,
    0 0 8px rgba(255, 176, 70, 0.95);
}

#flash {
  position: fixed;
  inset: 0;
  z-index: 7;
  pointer-events: none;
  background: #fff8ee;
  opacity: 0;
}

body.phase-tripping #flash { animation: arc 0.78s linear forwards; }

@keyframes arc {
  0% { opacity: 0; }
  8% { opacity: 0.95; }
  16% { opacity: 0; }
  30% { opacity: 0.55; }
  42% { opacity: 0.02; }
  68% { opacity: 0.22; }
  100% { opacity: 0; }
}

body.strain .bulb.on { animation: flicker 0.16s infinite; }

body.phase-tripping .bulb.on { animation: flicker 0.08s infinite; }

@keyframes flicker {
  0%, 100% { filter: brightness(1); }
  35% { filter: brightness(0.45); }
  55% { filter: brightness(1.15); }
  75% { filter: brightness(0.2); }
}

#title,
#ending {
  position: fixed;
  inset: 0;
  z-index: 8;
  display: none;
  place-items: center;
  text-align: center;
  padding: 32px 20px;
}

body.phase-title #title { display: grid; }

body.phase-ended #ending { display: grid; }

#title { background: #000; }

#ending { background: #000; }

#ending-thanked-reset {
  position: fixed;
  z-index: 9;
  top: max(16px, env(safe-area-inset-top));
  left: max(16px, env(safe-area-inset-left));
  padding: 8px 2px;
}

#ending-thanked-reset[hidden] { display: none; }

.sheet {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 34rem;
}

h1 {
  margin: 0;
  font-family: "Shippori Mincho", "Yu Mincho", serif;
  font-weight: 500;
  font-size: clamp(52px, 9vw, 80px);
  letter-spacing: 0.2em;
  text-indent: 0.2em;
}

.lede {
  margin: 0 0 8px;
  max-width: 26em;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.06em;
}

.rules {
  margin: 0 0 8px;
  max-width: 30em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.06em;
  text-align: center;
}

.rules p { margin: 0; }

.rules .rules-title {
  margin-bottom: 4px;
  color: #e7dccb;
  font-size: 13px;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
}

.title-gaze {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  margin-bottom: 2px;
}

.eye {
  position: relative;
  grid-column: 2;
  width: 120px;
  height: 120px;
  filter: drop-shadow(0 10px 14px rgba(0, 0, 0, 0.45));
}

.eye-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.eye-lid-shut {
  position: absolute;
  inset: 0;
  background: #000;
  transform: scaleY(0);
  transform-origin: 50% 0%;
  animation: eye-blink 6.8s infinite;
}

@keyframes eye-blink {
  0%, 92% { transform: scaleY(0); animation-timing-function: cubic-bezier(0.5, 0, 1, 1); }
  93.2% { transform: scaleY(1); }
  94% { transform: scaleY(1); animation-timing-function: cubic-bezier(0, 0, 0.4, 1); }
  96.5%, 100% { transform: scaleY(0); }
}

.eye-say {
  position: relative;
  grid-column: 3;
  justify-self: start;
  align-self: center;
  margin: 0 0 0 12px;
  padding: 10px 16px 11px;
  border-radius: 18px;
  background: #f4eadc;
  color: #2c241c;
  font-size: 15px;
  letter-spacing: 0.14em;
  line-height: 1;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.32);
}

.eye-say::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 50%;
  transform: translateY(-50%);
  border-width: 7px 8px 7px 0;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0) #f4eadc rgba(0, 0, 0, 0) rgba(0, 0, 0, 0);
}

.ending-copy { animation: rise 0.9s ease 0.25s both; }

#ending-line[hidden] { display: none; }

.camera-note {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin: 4px 0 0;
  color: #ff8a7a;
  font-size: 14px;
  letter-spacing: 0.08em;
}

.camera-note p { margin: 0; }

.camera-note .camera-open-browser {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.camera-note .camera-blocked,
.camera-note .camera-elsewhere {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.camera-note[hidden],
.camera-note .camera-blocked[hidden],
.camera-note .camera-elsewhere[hidden],
.camera-note .camera-open-browser[hidden] { display: none; }

.camera-feed {
  position: fixed;
  left: 0;
  top: 0;
  width: 2px;
  height: 2px;
  opacity: 0;
  pointer-events: none;
}

#camera-reading {
  position: fixed;
  z-index: 10;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  max-width: calc(100vw - 150px);
  margin: 0;
  padding: 6px 10px;
  border: 1px dashed #c0392b;
  background: rgba(0, 0, 0, 0.6);
  color: #ff8a7a;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  white-space: pre-line;
  text-align: left;
  pointer-events: none;
}

#camera-reading.is-dark {
  border-style: solid;
  color: #9dffb0;
  border-color: #3fae5a;
}

#camera-reading[hidden] { display: none; }

#ending .ending-eye[hidden] { display: none; }

#ending .ending-eye:not([hidden]) { animation: rise 0.9s ease 0.15s both; }

body.return-visit #ending .ending-eye,
body.return-visit #ending-reset { display: none; }

#ending-title[hidden] { display: none; }

body.return-visit #ending-title { animation: rise 0.9s ease 0.2s both; }

#ending .quiet { animation: rise 0.9s ease 0.55s both; }

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.noscript {
  position: fixed;
  inset: auto 16px 16px;
  z-index: 9;
  margin: 0;
  text-align: center;
}

@media (max-width: 1160px) {
  .topbar { padding-left: 150px; }
}

@media (max-width: 720px) {
  .topbar {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand settings"
      "rooms rooms";
    gap: 10px 12px;
    padding: 156px 12px 0;
  }

  .brand { grid-area: brand; margin-left: 0; }
  .brand-name { font-size: 18px; }
  .rooms {
    grid-area: rooms;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 6px;
  }
  #settings-open { grid-area: settings; justify-self: end; }

  .rooms button,
  #settings-open {
    min-height: 44px;
    padding: 8px 10px;
    letter-spacing: 0.06em;
  }

  #undo {
    top: max(10px, env(safe-area-inset-top));
    left: max(10px, env(safe-area-inset-left));
    min-height: 44px;
    font-size: 12px;
    letter-spacing: 0.08em;
  }

  #reset-room {
    top: calc(max(10px, env(safe-area-inset-top)) + 48px);
    left: max(10px, env(safe-area-inset-left));
    min-height: 44px;
    font-size: 12px;
    letter-spacing: 0.08em;
  }

  #rules-open {
    top: calc(max(10px, env(safe-area-inset-top)) + 96px);
    left: max(10px, env(safe-area-inset-left));
    min-height: 44px;
    font-size: 12px;
    letter-spacing: 0.08em;
  }

  main {
    align-items: flex-start;
    padding: 12px 8px calc(96px + env(safe-area-inset-bottom));
  }

  .plate { padding: 16px 8px 14px; }

  #board[data-room="0"],
  #board[data-room="1"],
  #board[data-room="3"],
  .board-pane[data-room="0"],
  .board-pane[data-room="1"],
  .board-pane[data-room="3"] { --bulb: min(64px, calc((100vw - 88px) / 3)); }

  .grid { gap: 10px 12px; }

  .kana-row { gap: 4px; }
  .kana-row .cell { min-width: 0; }
  .kana {
    font-size: 12px;
    white-space: nowrap;
  }

  #settings {
    top: 120px;
    right: 12px;
    bottom: auto;
    left: 12px;
    width: auto;
    max-height: calc(100dvh - 148px - env(safe-area-inset-bottom));
    overflow: auto;
  }

  #title,
  #ending {
    padding: 20px 16px;
    overflow: auto;
  }

  .sheet { gap: 12px; }
  .lede { font-size: 14px; line-height: 1.7; }
  .eye { width: 96px; height: 96px; }
  .eye-say { margin-left: 10px; }
  .eye-say {
    padding: 8px 12px 9px;
    font-size: 13px;
    letter-spacing: 0.1em;
  }
}

@media (max-height: 760px) {
  #board[data-room="0"],
  #board[data-room="1"],
  #board[data-room="3"],
  .board-pane[data-room="0"],
  .board-pane[data-room="1"],
  .board-pane[data-room="3"] { --bulb: 62px; }
  .glass { height: 240px; }
  h1 { font-size: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}