/* The hidden rooms. Full-bleed canvas; a quiet panel of real controls (the accessible way in). */
body.room{min-height:100vh;overflow:hidden}
#stage{position:fixed;inset:0;width:100vw;height:100vh;display:block;touch-action:none;cursor:grab}
#stage:active{cursor:grabbing}
.room-bar{position:fixed;top:0;left:0;right:0;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:calc(var(--pad)*.5) var(--pad);pointer-events:none}
.room-bar a,.room-bar button{pointer-events:auto}
.back{display:inline-flex;align-items:center;min-height:44px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink);border-bottom:1px solid var(--line)}
.back:hover{border-color:var(--ink)}
.room-id{margin:0;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase}
.room-ir .room-id{color:#ff8f8f;text-shadow:0 0 14px rgba(255,40,40,.8)}
.room-uv .room-id{color:#d4b3ff;text-shadow:0 0 14px rgba(170,90,255,.8)}

.room-panel{position:fixed;z-index:4;top:calc(var(--pad)*.5 + 64px);right:var(--pad);bottom:var(--pad);width:min(380px,calc(100vw - 2*var(--pad)));overflow:auto;padding:22px 22px 26px;border:1px solid var(--line);background:rgba(5,5,7,.8);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;flex-direction:column;gap:18px;scrollbar-width:thin}
.room-panel h1{font-size:clamp(34px,3.4vw,48px);line-height:.95;text-shadow:none}
.room-lede{margin:0;color:var(--mute);font-size:12.5px;line-height:1.7}
.room-panel fieldset{margin:0;padding:0;border:0;min-width:0}
.room-panel legend{margin-bottom:8px;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{position:relative;display:inline-flex;align-items:center;gap:8px;min-height:44px;min-width:44px;padding:0 10px;border:1px solid var(--line);font-size:10.5px;color:var(--mute);cursor:pointer}
.chip input{position:absolute;opacity:0;width:1px;height:1px}
.chip i{width:12px;height:12px;background:var(--c)}
.chip:has(input:checked){border-color:var(--ink);color:var(--ink)}
.chip:has(input:checked) i{box-shadow:0 0 10px 2px var(--c)}
.chip:has(input:focus-visible){outline:1px solid var(--ink);outline-offset:3px}
.row-ctl{display:flex;align-items:center;gap:10px}
.btn{min-height:44px;min-width:44px;padding:0 14px;border:1px solid var(--line);border-radius:0;background:transparent;color:var(--ink);font:400 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;cursor:pointer;box-shadow:none}
.btn:hover,.btn:focus-visible{border-color:var(--ink)}
.btn.solid{background:var(--ink);color:var(--bg)}
.row-ctl output{flex:1;text-align:center;font-size:11px;letter-spacing:.12em;color:var(--ink)}
.cells{display:grid;gap:3px}
/* the light table: a wider panel, the palette on one row, and the slice (21 × 21, drawn on with a
   finger or a mouse) kept in view */
.room-ir .room-panel{width:min(430px,calc(100vw - 2*var(--pad)));gap:16px}
.room-ir #palette{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:4px}
.room-ir #palette .chip{flex-direction:column;justify-content:center;gap:5px;min-width:0;padding:6px 0;font-size:9.5px}
@media (min-width:761px) and (max-height:1000px){ .room-ir .room-lede{display:none} }
#slice{gap:1px;touch-action:none;user-select:none;-webkit-user-select:none}
#slice .cell{min-height:0;border-width:1px;border-color:rgba(236,231,223,.1)}
#slice .cell.on{box-shadow:0 0 6px var(--c)}
#slice .cell.cursor::after{inset:1px}
.cell{aspect-ratio:1;min-width:0;min-height:30px;padding:0;border:1px solid rgba(236,231,223,.16);background:rgba(255,255,255,.02);cursor:pointer;position:relative}
.cell:focus-visible{outline:2px solid var(--ink);outline-offset:1px;z-index:1}
.cell.on{background:var(--c);border-color:transparent;box-shadow:0 0 10px var(--c)}
.cell.cursor::after{content:"";position:absolute;inset:3px;border:1px dashed rgba(255,255,255,.55)}
.keys{margin:0;font-size:10.5px;line-height:1.7;color:var(--faint)}
.status{margin:0;min-height:1.4em;font-family:var(--serif);font-size:18px;line-height:1.3;color:var(--ink)}

/* ultraviolet */
.boards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.board{margin:0;padding:0;border:0;min-width:0}
.board legend{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#b9a3e0;margin-bottom:6px}
.board .cells{grid-template-columns:repeat(4,minmax(0,1fr))}
.cell.you{background:#efe6ff;box-shadow:0 0 12px #b98bff}
.cell.them{background:#1a1024;border-color:#9b4bff;box-shadow:inset 0 0 0 1px #9b4bff}
.cell.them::before{content:"";position:absolute;inset:28%;background:#9b4bff;clip-path:polygon(50% 0,100% 100%,0 100%)}
.cell.win{outline:2px solid var(--olo);outline-offset:1px;box-shadow:0 0 16px var(--olo)}
.prize{display:flex;flex-direction:column;gap:10px;padding:16px;border:1px solid var(--olo);background:rgba(0,255,204,.05)}
.prize .code{font-family:var(--mono);font-size:24px;letter-spacing:.14em;color:#fff;user-select:all}
.prize a{align-self:flex-start;color:var(--ink);border-bottom:1px solid var(--olo);min-height:44px;display:inline-flex;align-items:center}
.thinking{color:#b9a3e0}

@media (max-width:760px){
  .room-panel{top:auto;left:10px;right:10px;bottom:10px;width:auto;max-height:52vh;padding:16px}
  .room-panel h1{font-size:30px}
  .room-lede{display:none}
  .room-ir .room-panel h1{order:-2}
  .room-ir #slice{order:-1}
  .keys{display:none}
}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}