:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;padding:0}
img{max-width:100%}
/* Layout: a lamp-lit corridor of doors (one per room); each room is a full-width illustrated stage with a tray of clues and the door code beneath it.
   One deliberate dark look: escape rooms are lit by lamps, so the page does not switch to a light theme. */
:root{
  --ink:#14111b; --ink-2:#1e1a28; --ink-3:#2a2537; --line:#3b3450;
  --text:#f0eaf6; --muted:#aaa2bd; --brass:#e3b04b; --brass-2:#f7d68c;
  --good:#63d7a0; --bad:#f27b7b;
  --f-display:'Reem Kufi','IBM Plex Sans Arabic',Tahoma,sans-serif;
  --f-body:'IBM Plex Sans Arabic',Tahoma,'Segoe UI',sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  --f-callig:'Aref Ruqaa','Amiri','Traditional Arabic',serif;
  --r-accent:var(--brass); --r-bg:var(--ink); --r-panel:var(--ink-2);
  color-scheme:dark;
}
html,body{background:var(--ink);color:var(--text)}
body{font-family:var(--f-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}
[hidden]{display:none!important}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--r-accent);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:28px 56px}
h1,h2,h3{font-family:var(--f-display);font-weight:700;text-wrap:balance;margin:0;line-height:1.25}

/* ---------- HUB ---------- */
#hub{background:radial-gradient(ellipse 70% 40% at 50% 0%, #3a2d1a 0%, transparent 70%), var(--ink)}
.hub-head{display:grid;gap:14px;padding-block:18px 8px}
.eyebrow{font-size:15px;letter-spacing:.06em;color:var(--brass);font-weight:500}
.hub-head h1{font-size:clamp(34px,6vw,62px);color:var(--brass-2)}
.hub-head p{margin:0;max-width:62ch;color:var(--muted);font-size:17px}
.howto{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:6px;padding:0;list-style:none;color:var(--text);font-size:15px}
.howto li{display:flex;align-items:center;gap:8px}
.howto b{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;border:1px solid var(--brass);color:var(--brass);font-size:13px;font-family:var(--f-mono)}
.progress-line{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:6px;color:var(--muted);font-size:15px}
.pbar{flex:1 1 200px;max-width:320px;height:8px;border-radius:8px;background:var(--ink-3);overflow:hidden}
.pbar i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--brass),var(--brass-2));border-radius:8px;transition:width .5s}
.corridor{margin-top:18px;display:grid;grid-template-columns:repeat(var(--n,5),minmax(0,1fr));gap:18px;padding:26px 18px 0;border-radius:6px;
  background:linear-gradient(#1a1622,#1a1622) top/100% 78% no-repeat, linear-gradient(#2a2117,#18120c) bottom/100% 22% no-repeat;position:relative}
.corridor::after{content:"";position:absolute;inset:auto 0 22% 0;height:10px;background:#0e0b08}
.door-card{position:relative;z-index:1;display:grid;gap:10px;justify-items:center;text-align:center;background:none;border:0;padding:0 0 18px}
.door-card svg{width:100%;max-width:170px;height:auto;display:block;transition:transform .35s ease, filter .35s}
/* :hover and :focus-visible in separate rules: an engine without :focus-visible (iOS < 15.4) drops a whole selector list */
.door-card:hover svg{transform:translateY(-4px);filter:drop-shadow(0 10px 24px var(--glow))}
.door-card:focus-visible svg{transform:translateY(-4px);filter:drop-shadow(0 10px 24px var(--glow))}
.door-card .subj{font-size:15px;color:var(--muted);letter-spacing:.04em}
.door-card .dname{font-family:var(--f-display);font-weight:700;line-height:1.25;font-size:19px;color:var(--text)}
.door-card .state{font-size:15px;font-variant-numeric:tabular-nums;color:var(--muted);min-height:22px}
.door-card .state.won{color:var(--good)}
.stars{color:var(--brass);letter-spacing:2px}
.stars .off{color:#7d7391}
.final{margin-top:28px;padding:22px;border:1px solid var(--brass);border-radius:6px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;background:#221b10}
.final h2{font-size:24px;color:var(--brass-2)}
.final p{margin:4px 0 0;color:var(--muted)}
.hub-foot{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;color:var(--muted);font-size:15px}
@media (max-width:860px){.corridor{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:520px){.corridor{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding-inline:10px}.corridor{background:var(--ink-2)}.corridor::after{display:none}}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:8px 18px;border-radius:8px;border:1px solid var(--line);background:var(--ink-3);font-weight:500;transition:background .2s,border-color .2s,transform .1s}
.btn:hover{border-color:var(--r-accent)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--r-accent);border-color:var(--r-accent);color:#17120a;font-weight:700}
.btn.primary:disabled{opacity:.45;cursor:not-allowed}
.btn.ghost{background:transparent}
.btn.small{min-height:40px;padding:4px 12px;font-size:15px}

/* ---------- ROOM ---------- */
#room{background:var(--r-bg);min-height:100%}
.room-top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--r-bg);background:color-mix(in srgb,var(--r-bg) 88%, transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.room-top .bar{max-width:1120px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.room-title{flex:1 1 200px;min-width:0}
.room-title small{display:block;font-size:14px;color:var(--r-accent);letter-spacing:.05em}
.room-title h1{font-size:21px}
.meter{display:flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums;font-family:var(--f-mono);font-size:18px;padding:4px 12px;border:1px solid var(--line);border-radius:8px;min-height:40px}
.meter span{font-family:var(--f-body);font-size:14px;color:var(--muted)}
.story{margin:18px 0 14px;max-width:70ch;color:var(--muted);font-size:16px}
.story b{color:var(--text)}
.stage{position:relative;border-radius:6px;overflow:hidden;border:1px solid var(--line);background:#000;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.stage svg{display:block;width:100%;height:auto;max-width:100%}
.hot{cursor:pointer;transition:filter .25s}
.hot:hover{filter:drop-shadow(0 0 10px var(--r-accent)) brightness(1.12)}
.hot:focus-visible{filter:drop-shadow(0 0 10px var(--r-accent)) brightness(1.12)}
.hot.done{filter:saturate(.55) brightness(.85)}
.hot.done:hover{filter:saturate(.7) brightness(1)}
.pulse{animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35}}
.s-d{font-family:var(--f-display)} .s-m{font-family:var(--f-mono)} .s-c{font-family:var(--f-callig)}
.tray{margin-top:16px;display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:16px}
.panel{background:var(--r-panel);border:1px solid var(--line);border-radius:6px;padding:16px}
.panel h2{font-size:15px;color:var(--muted);font-family:var(--f-body);font-weight:500;margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;font-size:15px}
.chip:hover{border-color:var(--r-accent)}
.chip .dot{width:9px;height:9px;border-radius:50%;background:var(--r-accent)}
.chip.done{color:var(--muted)}
.chip.done .dot{background:var(--good)}
.chip.door{border-color:var(--r-accent);color:var(--r-accent);font-weight:700}
.code{display:flex;gap:10px;direction:ltr;justify-content:flex-end}
.slot{width:52px;height:62px;display:grid;place-items:center;border-radius:6px;border:1px dashed var(--line);font-family:var(--f-mono);font-size:30px;color:var(--muted);position:relative;font-variant-numeric:tabular-nums}
.slot.got{border-style:solid;border-color:var(--r-accent);color:var(--r-accent);background:var(--r-bg);background:color-mix(in srgb,var(--r-accent) 10%,transparent)}
.slot small{position:absolute;top:-10px;right:6px;font-size:12px;background:var(--r-panel);padding:0 4px;color:var(--muted);font-family:var(--f-body)}
.tray-note{margin:10px 0 0;font-size:15px;color:var(--muted)}
@media (max-width:760px){.tray{grid-template-columns:1fr}.code{justify-content:center}}
@media (max-width:760px),(max-height:500px){.room-top{position:static}}

/* ---------- MODAL ---------- */
.modal{position:fixed;inset:0;z-index:50;display:grid;place-items:center;background:rgba(6,5,10,.72);backdrop-filter:blur(3px);
  padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));overflow-y:auto}
.sheet{width:min(580px,100%);background:var(--r-panel);border:1px solid var(--line);border-radius:10px;padding:24px;position:relative;box-shadow:0 30px 80px rgba(0,0,0,.6);animation:rise .28s ease}
@keyframes rise{from{transform:translateY(14px);opacity:.4}}
.sheet .x{position:absolute;top:12px;left:12px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;font-size:20px;line-height:1}
.sheet .m-eyebrow{margin:0;color:var(--r-accent);font-size:15px;letter-spacing:.05em}
.sheet h2{font-size:24px;margin:2px 0 12px;padding-left:44px}
.q{font-size:17px;margin-bottom:16px}
.q code,.codeblock{font-family:var(--f-mono);direction:ltr;text-align:left}
.codeblock{display:block;white-space:pre;background:#080b10;color:#ffc44d;border-radius:6px;padding:12px 14px;margin:10px 0;font-size:15px;overflow-x:auto;line-height:1.6}
.ans-row{display:flex;gap:10px;flex-wrap:wrap}
.ans-row input{flex:1 1 180px;min-width:0;min-height:48px;border-radius:8px;border:1px solid var(--line);background:var(--ink);color:var(--text);padding:8px 14px;font:inherit;font-size:20px}
.ans-row input:focus{border-color:var(--r-accent)}
.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.choice{min-height:52px;padding:10px 14px;border-radius:8px;border:1px solid var(--line);background:var(--ink);text-align:right;font-size:16px}
.choice:hover{border-color:var(--r-accent)}
.choice.wrong{border-color:var(--bad);color:var(--bad)}
@media (max-width:440px){.choices{grid-template-columns:1fr}}
.ord-label{font-size:15px;color:var(--muted);margin:0 0 6px}
.ord-slots,.ord-pool{display:flex;flex-wrap:wrap;gap:8px;min-height:52px;padding:8px;border-radius:8px}
.ord-slots{border:1px dashed var(--line);margin-bottom:12px;counter-reset:o}
.ord-pool{background:var(--ink)}
.tile{min-height:40px;padding:6px 14px;border-radius:6px;border:1px solid var(--line);background:var(--ink-3);font-size:16px}
.ord-slots .tile{border-color:var(--r-accent);counter-increment:o}
.ord-slots .tile::before{content:counter(o) ". ";color:var(--r-accent);font-family:var(--f-mono)}
.row{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.fb{min-height:26px;margin-top:12px;font-size:15px}
.fb.bad{color:var(--bad)} .fb.good{color:var(--good)}
.hint-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;padding-top:12px;border-top:1px solid var(--line)}
.hint{margin:8px 0 0;padding:10px 14px;border-radius:6px;background:var(--r-bg);background:color-mix(in srgb,var(--r-accent) 12%,transparent);font-size:15px}
.shake{animation:shake .4s}
@keyframes shake{25%{transform:translateX(-8px)}50%{transform:translateX(7px)}75%{transform:translateX(-4px)}}
.reward{text-align:center;display:grid;gap:8px;justify-items:center}
.reward .big{font-family:var(--f-mono);font-size:84px;line-height:1;color:var(--r-accent);width:120px;height:130px;display:grid;place-items:center;border:2px solid var(--r-accent);border-radius:10px;background:var(--r-bg);background:color-mix(in srgb,var(--r-accent) 10%,transparent)}
.reward p{margin:0;color:var(--muted)}
.wheels{display:flex;gap:12px;justify-content:center;direction:ltr;margin:6px 0 4px}
.wheel{display:grid;gap:4px;justify-items:center}
.wheel button{width:56px;height:38px;border-radius:6px;border:1px solid var(--line);background:var(--ink);font-size:16px}
.wheel .digit{width:56px;height:70px;display:grid;place-items:center;font-family:var(--f-mono);font-size:40px;border-radius:6px;background:#0a0910;border:1px solid var(--r-accent);color:var(--r-accent);font-variant-numeric:tabular-nums}
@media (max-width:360px){.sheet{padding:16px}.wheels{gap:8px}.wheel button,.wheel .digit{width:clamp(44px,15vw,56px)}}
.win{text-align:center}
.win h2{padding:0;font-size:30px;color:var(--r-accent)}
.win .stars{font-size:38px;margin:6px 0}
.stats{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:10px 0 16px}
.stats div{min-width:120px;padding:10px;border:1px solid var(--line);border-radius:8px}
.stats b{display:block;font-family:var(--f-mono);font-size:24px;font-variant-numeric:tabular-nums}
.stats span{font-size:15px;color:var(--muted)}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:60;overflow:hidden}
.confetti i{position:absolute;top:-20px;width:9px;height:14px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(720deg)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.confetti{display:none}}
/* A11Y-11: footer toggle "إيقاف الحركة" */
.ebs-reduce-motion *{animation:none!important;transition:none!important}.ebs-reduce-motion .confetti{display:none}
/* A11Y-15 skip link; focusable view headings */
.skip{position:absolute;top:-200px;right:8px;z-index:100;padding:10px 16px;border-radius:8px;background:var(--brass-2);color:#17120a;font-weight:700}
.skip:focus{top:8px}
.btn[aria-pressed="true"]{background:var(--r-accent);border-color:var(--r-accent);color:#17120a}
.ord-label{display:block}
.ord-slots .empty{color:var(--muted);font-size:15px;padding:6px}
/* Arabic rooms: grade picker, click-to-sort puzzles, explanations, Ruqaa samples */
.grades{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hub-foot a{color:var(--brass-2)}
.sort{display:grid;gap:8px}
.srow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--ink)}
.sitem{flex:1 1 150px;font-size:18px}
.sbins{display:flex;flex-wrap:wrap;gap:6px}
.sbin{min-height:40px;padding:4px 12px;border-radius:6px;border:1px solid var(--line);background:var(--ink-3);font-size:16px}
.sbin:hover{border-color:var(--r-accent)}
.sbin[aria-pressed="true"]{background:var(--r-accent);border-color:var(--r-accent);color:#17120a;font-weight:700}
.sbin[aria-pressed="true"]::before{content:"✓ "}
.smark{color:var(--bad);font-size:15px;font-weight:700}
.smark:empty{display:none}
.reward .why{text-align:right;justify-self:stretch;padding:10px 14px;border-radius:6px;background:var(--r-bg);background:color-mix(in srgb,var(--r-accent) 12%,transparent);color:var(--text);font-size:15px}
.ruq{font-family:var(--f-callig);font-size:1.8em;line-height:1.5;color:var(--r-accent);padding:0 6px}
.blank{color:var(--r-accent);font-family:var(--f-mono)}
.passage{background:var(--ink);border-inline-start:3px solid var(--r-accent);border-radius:6px;padding:10px 14px;margin:0 0 10px;line-height:2.1;font-size:18px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* IDM-09 badge is fixed at the top: keep it off the corridor heading and the room bar */
.ebs-has-badge #hub .wrap{padding-top:var(--ebs-badge-h,72px)}
.ebs-has-badge .room-top{top:0;padding-top:var(--ebs-badge-h,56px)}
/* Moved from style="" attributes (CSP style-src 'self', no 'unsafe-inline') */
.room-wrap{padding-top:0}
.reward h2,.win h2{padding:0}
.reward b.em{color:var(--text)}
.row.center{justify-content:center}
.fb.center{text-align:center}
.q.tight{margin-bottom:8px}
.win .sub{color:var(--muted);margin:0}
.up{justify-self:start;color:var(--brass-2);font-size:15px}