/* Gwei Backrooms — Pixel-Spatial Mystery */
:root {
  --bg: #05060a;
  --ink: #d6ffd9;
  --ink-dim: #8ddf9e;
  --neon: #7cff6b;
  --magenta: #ff3dfe;
  --cyan: #4dfffb;
  --yellow: #f2ff63;
  --border: rgba(124,255,107,0.32);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "VT323", "Press Start 2P", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  text-rendering: optimizeSpeed;
}

canvas#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  image-rendering: pixelated;
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: repeating-linear-gradient(
    to bottom, rgba(0,0,0,0.15), rgba(0,0,0,0.15) 2px, transparent 2px, transparent 4px
  );
  pointer-events: none;
  mix-blend-mode: overlay;
}

.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(8,12,18,0.9), rgba(5,6,10,0.6));
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-size: 28px;
  letter-spacing: 1px;
  text-shadow: 0 0 8px rgba(124,255,107,0.6), 0 0 2px #fff;
}
.brand-cn { color: var(--ink-dim); opacity: .9; }
.spacer { flex: 1; }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(10,14,20,0.6);
}
.toggle input { accent-color: var(--neon); }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: rgba(10,14,20,0.6);
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 12px;
  cursor: pointer;
  font: inherit;
}
.btn.outline:hover { box-shadow: 0 0 0 2px rgba(124,255,107,0.25); }

.lobby .intro {
  text-align: center;
  max-width: 900px;
  margin: 40px auto 10px auto;
  padding: 0 16px;
}
.title { font-size: 56px; margin: 0; text-shadow: 0 0 24px rgba(124,255,107,0.2); }
.subtitle { color: var(--ink-dim); margin-bottom: 10px; }
.lead { color: var(--ink-dim); font-size: 18px; }
.lead.small { font-size: 14px; opacity: 0.85; }

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding: 20px 16px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.room-card {
  position: relative;
  display: grid;
  place-items: start;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(12,18,28,0.7), rgba(10,14,20,0.7));
  box-shadow: inset 0 0 0 1px rgba(124,255,107,0.05), 0 20px 40px rgba(0,0,0,0.4);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
  overflow: hidden;
  isolation: isolate;
}
.room-card:hover { transform: translateY(-2px); box-shadow: 0 24px 50px rgba(0,0,0,0.5); }
.room-card:focus-visible { outline: 2px solid var(--neon); }

.room-emoji { font-size: 20px; opacity: .9; }
.room-title {
  margin: 20px 20px 0 20px;
  font-size: 28px;
  color: var(--neon);
  font-family: "Press Start 2P", "VT323", ui-monospace, monospace;
  letter-spacing: 1.5px;
  text-shadow: 0 0 6px rgba(124,255,107,0.55), 0 0 16px rgba(124,255,107,0.25);
  animation: glowPulse 3.2s ease-in-out infinite;
}
.room-title-cn { font-size: 14px; color: var(--ink-dim); }
.room-desc { font-size: 14px; color: var(--ink-dim); }
.room-desc-cn { font-size: 12px; color: #9adba6; }

.door-pixels {
  position: absolute;
  inset: -40% -40%;
  background:
    radial-gradient(circle at 30% 40%, rgba(124,255,107,0.12), transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(77,255,251,0.12), transparent 55%);
  filter: contrast(140%) saturate(120%);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
.room-card:hover .door-pixels { opacity: 1; }

/* Corridor 3D */
.corridor {
  position: fixed;
  inset: 0;
  perspective: 900px;
  z-index: 20;
  pointer-events: none;
}
.camera {
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transform: translateZ(0);
  transition: transform 1200ms cubic-bezier(.22,.61,.36,1);
}
.camera.travel { transform: translateZ(-1600px) rotateY(0.001deg); }

.hall {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
}
.wall {
  position: absolute;
  background: repeating-linear-gradient( to right, #0d1a12, #0d1a12 12px, #07100b 12px, #07100b 24px );
  image-rendering: pixelated;
  box-shadow: inset 0 0 0 2px rgba(124,255,107,0.06);
}
.wall.left    { width: 100vw; height: 100vh; transform: rotateY(90deg) translateZ(50vw); transform-origin: left; }
.wall.right   { width: 100vw; height: 100vh; transform: rotateY(-90deg) translateZ(50vw); transform-origin: right; }
.wall.floor   { width: 100vw; height: 100vh; transform: rotateX(90deg) translateZ(50vh); transform-origin: bottom; background: repeating-linear-gradient( to right, #0a140e, #0a140e 8px, #06100a 8px, #06100a 16px ); }
.wall.ceiling { width: 100vw; height: 100vh; transform: rotateX(-90deg) translateZ(50vh); transform-origin: top; background: repeating-linear-gradient( to right, #0a120e, #0a120e 12px, #080f0b 12px, #080f0b 24px ); }
.wall.back    { width: 100vw; height: 100vh; transform: translateZ(-1600px); background: linear-gradient(180deg, #020304, #040608); }

/* Modals / Rooms */
.modal {
  position: fixed;
  inset: 4rem 2rem;
  background: rgba(7,10,14,0.85);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.7), 0 0 0 1px rgba(124,255,107,0.08) inset;
  z-index: 30;
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(10px) scale(.98);
  pointer-events: none;
  transition: opacity 300ms ease, transform 300ms ease;
}
.modal.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.modal .close {
  position: absolute;
  top: 12px; right: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.4);
  color: var(--ink);
  cursor: pointer;
  padding: 6px 10px;
}
.room-title {
  margin: 20px 20px 0 20px;
  font-size: 28px;
  color: var(--neon);
  font-family: "Press Start 2P", "VT323", ui-monospace, monospace;
  letter-spacing: 1.5px;
  text-shadow: 0 0 6px rgba(124,255,107,0.55), 0 0 16px rgba(124,255,107,0.25);
  animation: glowPulse 3.2s ease-in-out infinite;
}
.room-title-cn { margin: 0 20px 10px 20px; color: var(--ink-dim); }

.hint { margin: 10px 20px 20px; color: var(--ink-dim); font-size: 12px; }

/* Terminal */
.terminal {
  --g: rgba(124,255,107,0.8);
  font-size: 18px;
  margin: 10px 20px 20px;
  padding: 16px;
  min-height: 240px;
  border: 1px dashed rgba(124,255,107,0.35);
  border-radius: 14px;
  background: rgba(4,8,6,0.5);
  overflow: auto;
}
.term-line { display: grid; gap: 4px; margin-bottom: 8px; }
.term-line .en { color: var(--ink); }
.term-line .cn { color: #9adba6; font-size: 16px; }

/* Lore */
.lore-list {
  margin: 10px 18px 22px 32px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.lore-list li {
  list-style: square;
  padding: 8px 10px;
  border-left: 2px solid rgba(124,255,107,0.35);
  background: linear-gradient(90deg, rgba(10,20,15,0.2), rgba(10,20,15,0));
}

/* Observation Deck shards */
.shards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 12px 20px 20px;
}
.shard {
  position: relative;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: center;
  background: rgba(10,14,20,0.5);
  text-shadow: 0 0 10px rgba(124,255,107,0.25);
  transition: transform 200ms ease, box-shadow 200ms ease, filter 200ms ease;
}
.shard::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--neon);
  opacity: 0;
  mix-blend-mode: screen;
  pointer-events: none;
  transform: translate(0,0);
}
.shard:hover {
  transform: translateY(-2px) scale(1.02) rotateZ(-.2deg);
  box-shadow: 0 30px 70px rgba(0,0,0,0.6);
  filter: contrast(110%);
}
.shard:hover::after { opacity: 0.45; animation: jitter 200ms infinite; }

@keyframes jitter {
  0%   { transform: translate(0,0); }
  50%  { transform: translate(1px,-1px); }
  100% { transform: translate(-1px,1px); }
}

/* Hypersigil */
#sigil {
  display: block;
  margin: 12px auto 8px;
  width: min(90vw, 520px);
  height: auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: radial-gradient( circle at 50% 45%, rgba(124,255,107,0.07), rgba(0,0,0,0) 60% ),
              repeating-radial-gradient( circle at 50% 50%, rgba(255,255,255,0.03), rgba(255,255,255,0.03) 2px, transparent 2px, transparent 4px );
}
.sigil-output { text-align: center; color: var(--ink-dim); margin-bottom: 18px; }

/* Team */
.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 12px 20px 24px;
}
.member {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  background: rgba(10,14,20,0.5);
}
.pixel-avatar {
  width: 72px; height: 72px;
  image-rendering: pixelated;
  margin-bottom: 8px;
  box-shadow: 0 0 0 3px rgba(124,255,107,0.15), 0 0 40px rgba(124,255,107,0.25) inset;
  border-radius: 12px;
  background: #0b130e;
  position: relative;
}
/* Simple 'space invader' faces built with box-shadow pixels */
.invader::before, .invader::after {
  content: "";
  position: absolute; left: 50%; top: 50%;
  width: 6px; height: 6px; background: var(--neon);
  box-shadow:
    -18px -12px 0 var(--neon), -12px -12px 0 var(--neon), -6px -12px 0 var(--neon),
    0 -12px 0 var(--neon), 6px -12px 0 var(--neon), 12px -12px 0 var(--neon), 18px -12px 0 var(--neon),
    -18px -6px 0 var(--neon), 18px -6px 0 var(--neon),
    -18px 0 0 var(--neon), -6px 0 0 var(--neon), 6px 0 0 var(--neon), 18px 0 0 var(--neon),
    -12px 6px 0 var(--neon), 12px 6px 0 var(--neon),
    -18px 12px 0 var(--neon), -12px 12px 0 var(--neon), 0 12px 0 var(--neon), 12px 12px 0 var(--neon), 18px 12px 0 var(--neon);
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 0 8px rgba(124,255,107,0.5));
}
.invader.b::before { background: var(--magenta); box-shadow: -18px -12px 0 var(--magenta), -12px -12px 0 var(--magenta), -6px -12px 0 var(--magenta), 0 -12px 0 var(--magenta), 6px -12px 0 var(--magenta), 12px -12px 0 var(--magenta), 18px -12px 0 var(--magenta), -18px -6px 0 var(--magenta), 18px -6px 0 var(--magenta), -18px 0 0 var(--magenta), -6px 0 0 var(--magenta), 6px 0 0 var(--magenta), 18px 0 0 var(--magenta), -12px 6px 0 var(--magenta), 12px 6px 0 var(--magenta), -18px 12px 0 var(--magenta), -12px 12px 0 var(--magenta), 0 12px 0 var(--magenta), 12px 12px 0 var(--magenta), 18px 12px 0 var(--magenta); }
.invader.c::before { background: var(--cyan); box-shadow: -18px -12px 0 var(--cyan), -12px -12px 0 var(--cyan), -6px -12px 0 var(--cyan), 0 -12px 0 var(--cyan), 6px -12px 0 var(--cyan), 12px -12px 0 var(--cyan), 18px -12px 0 var(--cyan), -18px -6px 0 var(--cyan), 18px -6px 0 var(--cyan), -18px 0 0 var(--cyan), -6px 0 0 var(--cyan), 6px 0 0 var(--cyan), 18px 0 0 var(--cyan), -12px 6px 0 var(--cyan), 12px 6px 0 var(--cyan), -18px 12px 0 var(--cyan), -12px 12px 0 var(--cyan), 0 12px 0 var(--cyan), 12px 12px 0 var(--cyan), 18px 12px 0 var(--cyan); }
.invader.d::before { background: var(--yellow); box-shadow: -18px -12px 0 var(--yellow), -12px -12px 0 var(--yellow), -6px -12px 0 var(--yellow), 0 -12px 0 var(--yellow), 6px -12px 0 var(--yellow), 12px -12px 0 var(--yellow), 18px -12px 0 var(--yellow), -18px -6px 0 var(--yellow), 18px -6px 0 var(--yellow), -18px 0 0 var(--yellow), -6px 0 0 var(--yellow), 6px 0 0 var(--yellow), 18px 0 0 var(--yellow), -12px 6px 0 var(--yellow), 12px 6px 0 var(--yellow), -18px 12px 0 var(--yellow), -12px 12px 0 var(--yellow), 0 12px 0 var(--yellow), 12px 12px 0 var(--yellow), 18px 12px 0 var(--yellow); }

.footer {
  border-top: 1px solid var(--border);
  padding: 12px 16px 40px;
  display: flex;
  justify-content: center;
  gap: 12px;
  color: var(--ink-dim);
}

/* Glitch text effect */
.glitch {
  position: relative;
  display: inline-block;
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 0;
  text-shadow: -2px 0 var(--magenta);
  clip-path: inset(0 0 0 0);
  opacity: .75;
}
.glitch::after {
  text-shadow: 2px 0 var(--cyan);
  animation: glitchClip 2s infinite linear alternate-reverse;
}
.glitch::before {
  animation: glitchClip 2.4s infinite linear alternate;
}
@keyframes glitchClip {
  0% { clip-path: inset(0 0 80% 0); }
  10% { clip-path: inset(10% 0 65% 0); }
  20% { clip-path: inset(80% 0 0 0); }
  30% { clip-path: inset(40% 0 40% 0); }
  40% { clip-path: inset(0 0 80% 0); }
  50% { clip-path: inset(65% 0 10% 0); }
  60% { clip-path: inset(0 0 80% 0); }
  70% { clip-path: inset(45% 0 35% 0); }
  80% { clip-path: inset(15% 0 55% 0); }
  90% { clip-path: inset(75% 0 5% 0); }
  100% { clip-path: inset(0 0 80% 0); }
}

/* Help dialog */
dialog.help {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  background: rgba(8,12,16,0.9);
  color: var(--ink);
}
dialog::backdrop { background: rgba(0,0,0,0.6); }

@media (max-width: 640px) {
  .modal { inset: 4rem 1rem; border-radius: 16px; }
  .room-title {
  margin: 20px 20px 0 20px;
  font-size: 28px;
  color: var(--neon);
  font-family: "Press Start 2P", "VT323", ui-monospace, monospace;
  letter-spacing: 1.5px;
  text-shadow: 0 0 6px rgba(124,255,107,0.55), 0 0 16px rgba(124,255,107,0.25);
  animation: glowPulse 3.2s ease-in-out infinite;
}
}


/* Corridor visibility control to avoid black rectangle when idle */
.corridor { opacity: 0; transition: opacity 300ms ease; }
.corridor.active { opacity: 1; }


/* Observation Deck dynamic canvas */
.obs-wrap {
  position: relative;
  margin: 12px 20px 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(8,12,16,0.55);
  box-shadow: 0 30px 80px rgba(0,0,0,0.55) inset;
}
#obsCanvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
}
.obs-overlay {
  position: absolute;
  bottom: 8px;
  left: 12px;
  right: 12px;
  text-shadow: 0 0 8px rgba(124,255,107,0.3);
  pointer-events: none;
}
/* Hide old shards grid if present (fallback) */
.shards { display: none !important; }

/* Boss battle-inspired hero (no HP/score UI) */
.boss-intro {
  position: relative;
  max-width: 1100px;
  margin: 32px auto 10px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(10,14,20,0.7), rgba(6,8,12,0.7));
  box-shadow: inset 0 0 0 1px rgba(124,255,107,0.06), 0 40px 120px rgba(0,0,0,0.5);
  overflow: hidden;
}

.alert-banner {
  position: relative;
  font-size: 12px;
  color: #031;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  background:
    repeating-linear-gradient(45deg, rgba(124,255,107,0.28) 0 10px, rgba(124,255,107,0.1) 10px 20px);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  display: inline-block;
  box-shadow: 0 0 0 1px rgba(124,255,107,0.08) inset;
  animation: bannerPulse 2.6s ease-in-out infinite;
}
@keyframes bannerPulse {
  0%,100% { filter: brightness(1); } 50% { filter: brightness(1.2); }
}

.boss-title {
  font-size: clamp(36px, 6vw, 86px);
  margin: 10px 0 0 0;
  line-height: 1;
  color: var(--neon);
  text-shadow: 0 0 14px rgba(124,255,107,0.5), 0 0 32px rgba(124,255,107,0.25);
}
.boss-title .glitch { font-size: inherit; }

.boss-sub {
  color: var(--ink-dim);
  margin-top: 6px;
}

.arena {
  position: relative;
  margin-top: 16px;
  border: 1px dashed rgba(124,255,107,0.35);
  border-radius: 16px;
  padding: 18px;
  background: radial-gradient(circle at 50% 50%, rgba(124,255,107,0.06), rgba(0,0,0,0) 60%),
              repeating-radial-gradient(circle at 50% 50%, rgba(255,255,255,0.03) 0 2px, transparent 2px 4px);
  overflow: hidden;
}

.reticle {
  position: absolute;
  left: 50%; top: 50%;
  width: 180px; height: 180px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 1px rgba(124,255,107,0.35), 0 0 22px rgba(124,255,107,0.2) inset;
}
.reticle::before, .reticle::after {
  content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 2px; height: 220px; background: rgba(124,255,107,0.25);
}
.reticle::after { width: 220px; height: 2px; }

.boss-cta {
  display: inline-flex; gap: 8px; align-items: center;
  margin-top: 12px;
  font-size: 16px;
  border-color: rgba(124,255,107,0.5);
  box-shadow: 0 0 0 2px rgba(124,255,107,0.08);
}
.boss-cta:hover { box-shadow: 0 0 0 3px rgba(124,255,107,0.18), 0 10px 30px rgba(0,0,0,0.4); }

.boss-notes {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--ink-dim);
}


/* Add neon border + green grid when corridor is active (the central rectangle) */
.corridor.active .wall.back {
  background:
    linear-gradient(180deg, #020304, #040608),
    repeating-linear-gradient(to right, rgba(124,255,107,0.18) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(to bottom, rgba(124,255,107,0.18) 0 1px, transparent 1px 28px);
  border: 2px solid var(--neon);
  box-shadow:
    inset 0 0 0 2px rgba(124,255,107,0.18),
    inset 0 0 60px rgba(124,255,107,0.18),
    0 0 40px rgba(124,255,107,0.18);
}

/* Optional outer overlay grid for extra flair */
.corridor::after {
  content: "";
  position: absolute;
  inset: 8%;
  border: 2px solid var(--neon);
  pointer-events: none;
  opacity: 0;
  transition: opacity 250ms ease;
  background-image:
    repeating-linear-gradient(0deg, rgba(124,255,107,0.16) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(124,255,107,0.16) 0 1px, transparent 1px 24px);
  box-shadow: 0 0 24px rgba(124,255,107,0.25), inset 0 0 32px rgba(124,255,107,0.2);
  mix-blend-mode: screen;
}
.corridor.active::after { opacity: 0.45; }

/* Make card titles smaller so they fit neatly in the card */
.room-card .room-title {
  font-size: 14px;
  margin: 0;
  letter-spacing: 0.5px;
  text-shadow: 0 0 4px rgba(124,255,107,0.35);
  animation: none;
}
.room-card .room-title-cn {
  font-size: 12px;
}
/* Modal titles remain larger but responsive */
.modal .room-title {
  font-size: clamp(18px, 2.4vw, 26px);
  margin: 20px 20px 0 20px;
}

/* Ensure Observation Deck fits its wrapper with a stable aspect ratio */
.obs-wrap {
  aspect-ratio: 16/9;
}
#obsCanvas {
  width: 100%;
  height: 100%;
}
@media (max-width: 560px) {
  .obs-wrap { aspect-ratio: 4/3; }
}