:root{--bg:#0c1424;--panel:#121d31;--panel2:#182641;--text:#f6f8ff;--muted:#aeb9ce;--line:#2c3d5d;--gold:#ffcb6b;--green:#5fe0a1;--red:#ff7f8f;--blue:#73b7ff;--accent:#8f7cff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,#1d2441 0,#0c1424 38%,#080e19 100%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100vh}a{color:inherit}.hidden{display:none!important}.arcadeTop{display:flex;justify-content:space-between;align-items:center;padding:14px clamp(16px,4vw,56px);border-bottom:1px solid rgba(255,255,255,.08);background:rgba(8,14,25,.82);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20}.arcadeBrand{font-weight:900;letter-spacing:.08em;text-decoration:none;font-size:22px}.arcadeBtn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:14px;padding:12px 18px;font:inherit;font-weight:800;cursor:pointer;min-height:44px}.arcadeBtn:hover{filter:brightness(1.08)}.arcadeBtn.primary{background:linear-gradient(135deg,#7b67ff,#9c7cff);border-color:transparent}.arcadeBtn.secondary{background:#173052;border-color:#31577f}.arcadeBtn.ghost{background:transparent}.arcadeBtn.danger{background:#542434;border-color:#7d3247}.arcadeBtn.small{padding:8px 12px;min-height:38px;font-size:13px}.arcadeBtn:disabled{opacity:.45;cursor:not-allowed}.arcadeHome,.arcadeRoom{width:min(1180px,calc(100% - 28px));margin:0 auto;padding:34px 0 60px}.arcadeHero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.7fr);gap:26px;align-items:stretch}.heroMain,.howCard,.arcadePanel,.publicCard{background:linear-gradient(180deg,rgba(24,38,65,.94),rgba(15,26,45,.94));border:1px solid rgba(255,255,255,.09);border-radius:24px}.heroMain{padding:clamp(26px,5vw,54px);position:relative;overflow:hidden}.heroMain:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:var(--accent);filter:blur(110px);opacity:.18;right:-80px;top:-90px}.eyebrow{font-size:12px;font-weight:900;letter-spacing:.18em;color:var(--gold)}.heroIcon{font-size:58px;line-height:1;margin:12px 0}.heroMain h1{font-size:clamp(34px,5.6vw,68px);line-height:.98;margin:8px 0 18px;max-width:850px}.heroMain p{color:var(--muted);font-size:17px;line-height:1.65;max-width:760px}.heroActions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.howCard{padding:26px}.howCard h2{margin:5px 0 14px}.howCard ol{margin:0;padding-left:20px;color:var(--muted);display:grid;gap:11px;line-height:1.45}.statStrip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.statStrip div{background:rgba(255,255,255,.05);padding:14px;border-radius:14px}.statStrip b{display:block;font-size:22px}.statStrip span{font-size:12px;color:var(--muted)}.section{margin-top:28px}.sectionHead{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}.sectionHead h2{margin:2px 0 0}.roomList{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}.publicCard{padding:18px}.publicCard h3{margin:8px 0}.publicMeta{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 14px}.tag{font-size:12px;background:#243652;border:1px solid #385171;padding:5px 8px;border-radius:99px;color:#dbe8ff}.roomCode{font-weight:900;letter-spacing:.14em;color:var(--gold)}.arcadeEmpty{color:var(--muted);padding:20px;border:1px dashed var(--line);border-radius:16px}.modal{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:50;display:grid;place-items:center;padding:18px}.modalPanel{width:min(720px,100%);max-height:90vh;overflow:auto;background:#101b2e;border:1px solid #354a6c;border-radius:24px;padding:24px;position:relative}.modalClose{position:absolute;right:14px;top:12px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#192841;color:#fff;font-size:24px;cursor:pointer}.modalTitle h2{margin:4px 0 20px}.formGrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.formGrid label{font-size:13px;font-weight:700;color:#ccd6e8;display:grid;gap:7px}.formGrid .full{grid-column:1/-1}.formGrid input,.formGrid select{width:100%;background:#0c1525;border:1px solid #314665;border-radius:12px;color:#fff;padding:12px;font:inherit;min-height:46px}.checkRow{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center!important}.checkRow input{width:18px!important;min-height:0!important}.roomHeader{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:18px}.roomHeader h1{margin:3px 0 5px}.roomMeta{color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}.roomGrid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.65fr);gap:18px}.arcadePanel{padding:20px}.panelTitle{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.panelTitle h2,.panelTitle h3{margin:0}.players{display:grid;gap:8px}.playerRow,.rankRow{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;background:rgba(255,255,255,.045);border-radius:12px;padding:10px}.hostDot{font-size:11px;color:var(--gold)}.rankPos{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#293d5e}.settingGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.settingGrid label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.settingGrid input,.settingGrid select,.answerInput{background:#0a1322;border:1px solid #304463;border-radius:12px;color:white;padding:11px;font:inherit;width:100%;min-height:44px}.hostActions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.countdown{display:grid;place-items:center;text-align:center;min-height:340px}.countdown strong{font-size:100px;line-height:1;color:var(--gold)}.timerWrap{height:8px;background:#273650;border-radius:999px;overflow:hidden;margin:12px 0 18px}.timerBar{height:100%;background:linear-gradient(90deg,var(--green),var(--gold));width:100%}.clueStack{display:grid;gap:10px;margin:15px 0}.clue{display:grid;grid-template-columns:38px 1fr;gap:10px;align-items:center;background:#111f36;border:1px solid #2d4568;border-radius:14px;padding:12px}.clue b{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#284266;color:var(--gold)}.guessForm{display:flex;gap:10px;margin-top:16px}.guessHistory{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.guessChip{font-size:12px;padding:6px 9px;border-radius:99px;background:#3c2030;color:#ffd5dc}.guessChip.good{background:#153c2f;color:#caffdf}.revealBox{text-align:center;padding:22px 6px}.revealAnswer{font-size:clamp(32px,7vw,66px);font-weight:950;color:var(--gold);margin:8px 0}.reference{display:inline-block;margin:8px 0;padding:7px 10px;border-radius:999px;background:#1b3b56;color:#bfe3ff;font-weight:800}.summary{color:var(--muted);font-size:16px;line-height:1.6;max-width:720px;margin:12px auto}.timelineIntro{color:var(--muted);line-height:1.5}.timelineList{display:grid;gap:9px;margin:14px 0}.timelineCard{display:grid;grid-template-columns:44px 1fr auto;gap:10px;align-items:center;background:#111f36;border:1px solid #365071;border-radius:14px;padding:9px 10px;transition:.15s}.timelineCard.dragging{opacity:.55;border-color:var(--gold)}.dragHandle{width:42px;height:42px;border:1px solid #426083;background:#223956;color:#fff;border-radius:11px;font-size:21px;touch-action:none;cursor:grab}.moveBtns{display:flex;gap:4px}.moveBtns button{width:38px;height:38px;border-radius:10px;border:1px solid #3b5371;background:#1a2d48;color:#fff;cursor:pointer}.timelineText{font-weight:720;line-height:1.35}.correctOrder{display:grid;gap:8px;text-align:left;max-width:760px;margin:15px auto}.correctOrder div{background:#13372d;border:1px solid #285846;padding:10px 12px;border-radius:12px}.groupScore{font-size:36px;font-weight:950;color:var(--green)}.history{display:grid;gap:8px}.historyItem{background:rgba(255,255,255,.04);padding:9px 11px;border-radius:11px}.historyItem small{display:block;color:var(--muted);margin-top:3px}.finished{text-align:center;padding:28px 10px}.finished h2{font-size:36px;margin-bottom:8px}.winner{font-size:22px;color:var(--gold)}.toast{position:fixed;right:18px;bottom:18px;z-index:90;background:#17263d;border:1px solid #3c567b;color:#fff;padding:12px 16px;border-radius:14px;transform:translateY(20px);opacity:0;pointer-events:none;transition:.2s;max-width:min(420px,calc(100% - 36px))}.toast.show{transform:none;opacity:1}.toast.error{border-color:#8f4052;background:#3b1e29}@media(max-width:820px){.arcadeHero,.roomGrid{grid-template-columns:1fr}.roomHeader{flex-direction:column}.settingGrid{grid-template-columns:1fr 1fr}.heroMain h1{font-size:42px}.statStrip{grid-template-columns:1fr 1fr 1fr}}@media(max-width:560px){.arcadeHome,.arcadeRoom{width:min(100% - 18px,1180px);padding-top:18px}.arcadeTop{padding:10px 12px}.heroMain,.howCard,.arcadePanel{border-radius:18px;padding:17px}.formGrid,.settingGrid{grid-template-columns:1fr}.formGrid .full{grid-column:auto}.heroMain h1{font-size:36px}.heroActions .arcadeBtn{flex:1 1 140px}.guessForm{flex-direction:column}.timelineCard{grid-template-columns:42px 1fr}.moveBtns{grid-column:2;justify-content:flex-end}.roomHeader .arcadeBtn{width:100%}.statStrip{grid-template-columns:1fr}.countdown strong{font-size:78px}}