:root{--bg:#0b0d10;--bg-2:#0f1217;--surface:#14171c;--surface-raised:#1b1f26;--surface-soft:#11141a;--text:#f5f7fa;--muted:#9aa3af;--faint:#6e7784;--border:#2a3039;--border-soft:#20252d;--accent:#f4c95d;--accent-strong:#ffd86b;--accent-soft:#f4c95d1f;--success:#77d69b;--danger:#ff7373;--mask:#596270;--radius-card:18px;--radius-control:10px;--font:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;background:radial-gradient(circle at 18% 0,#f4c95d14,#0000 28%),linear-gradient(#090b0e,#0b0d10 45%,#090b0e);min-height:100dvh;margin:0;line-height:1.45;overflow-x:clip}a{color:inherit;text-decoration:none}button{font-family:inherit}.wrap{width:min(1400px,100% - 24px);margin:auto;padding-bottom:90px}.top{z-index:20;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0f1217d6;border:1px solid #ffffff12;border-radius:17px;justify-content:space-between;align-items:center;gap:12px;width:min(1160px,100%);margin:10px auto 0;padding:11px 14px;display:flex;position:sticky;top:10px}.brand{letter-spacing:-.02em;color:var(--text);align-items:center;gap:9px;font-weight:900;display:flex}.seal{background:var(--accent);color:#111;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;display:grid}.seal svg{width:18px;height:18px}.top-actions{align-items:center;gap:6px;display:flex}.nav-link{color:var(--muted);border-radius:8px;padding:7px 9px;font-size:12px;font-weight:700}.nav-link:hover{color:var(--text)}.langs{border:1px solid var(--border);border-radius:9px;gap:4px;padding:3px;display:flex}.lang-btn{color:#717a87;cursor:pointer;background:0 0;border:none;border-radius:6px;min-height:26px;padding:4px 7px;font-size:10px;font-weight:900}.lang-btn.on{background:var(--surface-raised);color:#fff}.btn{border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface);min-height:45px;color:var(--text);cursor:pointer;justify-content:center;align-items:center;gap:7px;padding:0 15px;font-size:13px;font-weight:900;transition:border-color .15s,background .15s,transform .1s;display:inline-flex}.btn:hover:not(:disabled){border-color:#3a424d}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);color:#111;border-color:var(--accent)}.btn.primary:hover:not(:disabled){background:var(--accent-strong)}.btn.danger{color:var(--danger)}.btn.danger:hover:not(:disabled){border-color:#ff737380}.btn.ghost{background:0 0}.btn.small{border-radius:8px;min-height:34px;padding:0 12px;font-size:11px}.btn.block{width:100%}.field{margin-bottom:13px}.field .name{color:var(--text);margin-bottom:6px;font-size:10px;font-weight:900}.field .helper{color:var(--faint);margin-top:5px;font-size:10px;line-height:1.4}.input,.textarea{border:1px solid var(--border);border-radius:var(--radius-control);width:100%;min-height:40px;color:var(--text);resize:vertical;background:#0c0f13;padding:10px 12px;font-family:inherit;font-size:13px}.textarea{min-height:84px}.input::placeholder,.textarea::placeholder{color:#5e6774}.seg{border:1px solid var(--border);border-radius:var(--radius-control);background:#0d1014;grid-template-columns:1fr 1fr;gap:4px;padding:3px;display:grid}.seg button{text-align:center;color:#727b87;cursor:pointer;background:0 0;border:none;border-radius:7px;min-height:36px;padding:9px 8px;font-size:11px;font-weight:900}.seg button.on{color:#fff;background:#20252d}.seg button:hover:not(.on){color:var(--text)}.steps{flex-wrap:wrap;gap:5px;display:flex}.steps button{border:1px solid var(--border);color:#707987;cursor:pointer;background:#0d1014;border-radius:8px;place-items:center;width:38px;height:38px;min-height:38px;font-size:11px;font-weight:900;display:grid}.steps button.on{background:var(--accent);color:#111;border-color:var(--accent)}.card,.preview{border:1px solid var(--border-soft);background:#111419;border-radius:15px;padding:16px}.panel{border:1px solid var(--border-soft);border-radius:var(--radius-card);background:linear-gradient(#181c22f7,#0f1217f7);overflow:hidden;box-shadow:0 18px 55px #0000002e}.pad{padding:22px}.caption{color:var(--faint);text-transform:uppercase;letter-spacing:.11em;font-size:9px;font-weight:900}.eyebrow{color:var(--accent);letter-spacing:.13em;text-transform:uppercase;font-size:10px;font-weight:900}.secret-card{border:1px solid var(--border);background:linear-gradient(#161a20,#111419);border-radius:15px;padding:13px}.secret-card .label{color:var(--faint);text-transform:uppercase;letter-spacing:.12em;margin-bottom:7px;font-size:9px;font-weight:900}.secret{font:15px var(--mono);letter-spacing:.09em;word-break:break-word;white-space:pre-wrap;overflow-wrap:anywhere}.secret .rev{color:var(--accent)}.secret .mask{color:var(--mask)}.progress{justify-content:center;gap:5px;margin:13px 0;display:flex}.progress i{background:#252b33;border-radius:999px;width:27px;height:7px;display:block}.progress i.done{background:var(--accent)}.progress i.current{background:linear-gradient(90deg, var(--accent) 48%, #252b33 48%)}.players{flex-direction:column;gap:6px;display:flex}.player{background:#111419;border:1px solid #232933;border-radius:10px;justify-content:space-between;align-items:center;gap:8px;padding:7px 8px;font-size:11px;display:flex}.person{align-items:center;gap:7px;min-width:0;display:flex}.person b{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.avatar{width:24px;height:24px;color:var(--muted);background:#20252d;border-radius:50%;flex:none;place-items:center;font-size:9px;font-weight:900;display:grid}.online{background:var(--success);border-radius:50%;flex:none;width:7px;height:7px}.online.off{background:#333b46}.player .role-tag{text-transform:uppercase;letter-spacing:.08em;color:var(--faint);border:1px solid var(--border-soft);border-radius:999px;padding:2px 6px;font-size:8px;font-weight:900}.player.current{border-color:#f4c95d73}.lock{width:82px;height:82px;color:var(--accent);background:#f4c95d14;border:1px solid #f4c95d33;border-radius:50%;place-items:center;margin:12px auto 18px;display:grid}.lock svg{width:36px;height:36px}.lock.small{width:56px;height:56px;margin:0 auto 12px}.lock.small svg{width:25px;height:25px}.hero{grid-template-columns:1.03fr .97fr;align-items:center;gap:58px;max-width:1240px;min-height:640px;margin:auto;padding:66px 28px 24px;display:grid}.hero-logo{width:min(300px,52vw);height:auto;margin:0 0 14px;display:block}.hero h1{letter-spacing:-.065em;margin:20px 0 18px;font-size:clamp(55px,7vw,100px);font-weight:900;line-height:.92}.hero h1 .accent{color:var(--accent)}.hero p{color:var(--muted);max-width:610px;margin:0 0 28px;font-size:18px}.actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.note{color:var(--faint);margin-top:16px;font-size:11px}.note b{color:var(--success)}.join-box{border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface-soft);align-items:center;gap:6px;padding:6px;display:flex}.join-box input{width:140px;min-height:34px;color:var(--text);font:15px var(--mono);letter-spacing:.2em;text-transform:uppercase;background:0 0;border:none;outline:none;padding:0 8px}.join-box input::placeholder{letter-spacing:.08em;text-transform:none;font-size:12px}.join-err{color:var(--danger);margin-top:7px;font-size:10px}.stage{min-height:550px;position:relative}.glow{pointer-events:none;background:radial-gradient(circle,#f4c95d21,#0000 68%);border-radius:50%;width:420px;height:420px;position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%)}.phone{background:#07080a;border:1px solid #343b45;border-radius:34px;width:285px;min-height:550px;padding:9px;animation:.7s both phone-in;position:absolute;box-shadow:0 28px 85px #00000073}.phone.a{top:0;right:5%;transform:rotate(3deg)}.phone.b{opacity:.78;top:90px;left:2%;transform:rotate(-8deg)scale(.92)}.screen{background:radial-gradient(circle at 50% 15%,#f4c95d12,#0000 26%),#0d1014;border:1px solid #ffffff0a;border-radius:27px;flex-direction:column;min-height:530px;padding:30px 17px 18px;display:flex;overflow:hidden}.mini-top{color:var(--faint);text-transform:uppercase;letter-spacing:.08em;justify-content:space-between;align-items:center;font-size:9px;display:flex}.mini-brand{color:#fff;letter-spacing:-.01em;align-items:center;gap:6px;font-weight:900;display:flex}.mini-brand .seal{width:22px;height:22px}.mini-brand .seal svg{width:12px;height:12px}.pill{font-family:var(--mono);letter-spacing:.12em;background:#12151a;border:1px solid #242a32;border-radius:999px;padding:5px 7px}@keyframes phone-in{0%{opacity:0;transform:translateY(24px)rotate(0)}to{opacity:1}}.create-grid{grid-template-columns:1.1fr .9fr;gap:16px;display:grid}@media (max-width:800px){.create-grid{grid-template-columns:1fr}}.challenge{text-align:center;margin:22px 0 9px}.challenge small{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;font-size:10px;font-weight:900}.challenge h4{margin:6px 0;font-size:21px;line-height:1.15}.challenge .math{letter-spacing:.01em;font-size:34px}.tiles{grid-template-columns:repeat(3,1fr);gap:7px;margin:10px 0;display:grid}.tiles.cols-4{grid-template-columns:repeat(4,1fr)}.tile{aspect-ratio:1;color:var(--text);cursor:pointer;background:#171b21;border:1px solid #2b323b;border-radius:11px;place-items:center;min-height:0;font-size:22px;transition:border-color .12s,background .12s,transform .1s;display:grid}.tile:hover:not(:disabled){border-color:#3a424d}.tile:disabled{cursor:default}.tile.hot{background:#f4c95d12;border-color:#f4c95d8c}.choices{grid-template-columns:1fr 1fr;gap:7px;margin-top:16px;display:grid}.choice{height:50px;color:var(--text);cursor:pointer;background:#171b21;border:1px solid #2a3139;border-radius:10px;place-items:center;font-size:15px;font-weight:800;transition:border-color .12s,background .12s;display:grid}.choice:hover:not(:disabled){border-color:#3a424d}.choice:disabled{cursor:default}.choice.hot{background:#f4c95d12;border-color:#f4c95d8c}.memory-stage{text-align:center;margin:12px 0}.memory-glyphs{letter-spacing:.06em;flex-wrap:wrap;justify-content:center;gap:8px;margin:10px 0;font-size:30px;display:flex}.memory-buttons{flex-wrap:wrap;justify-content:center;gap:8px;margin:14px 0;display:flex}.memory-buttons button{cursor:pointer;width:52px;height:52px;color:var(--text);background:#171b21;border:1px solid #2b323b;border-radius:12px;font-size:24px;transition:border-color .12s,background .12s,transform .1s}.memory-buttons button:hover:not(:disabled){border-color:#3a424d}.memory-buttons button:disabled{cursor:default}.memory-buttons button.hot{background:#f4c95d12;border-color:#f4c95d8c}.memory-picked{flex-wrap:wrap;justify-content:center;gap:6px;min-height:30px;font-size:22px;display:flex}.scramble-word{font:26px var(--mono);letter-spacing:.24em;text-align:center;margin:18px 0 4px}.order-tiles{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:18px;display:flex}.order-tiles .tile{width:56px;font-size:17px;font-weight:800}.puzzle-feedback{justify-content:center;align-items:center;min-height:34px;margin-top:8px;font-size:12px;font-weight:900;display:flex}.puzzle-feedback.wrong{color:var(--danger)}.puzzle-feedback.correct{color:var(--success)}.puzzle-actions{justify-content:center;gap:8px;margin-top:10px;display:flex}.puzzle-submit{min-width:130px}.player-shell{flex-direction:column;gap:14px;max-width:560px;margin:0 auto;padding:18px 14px 40px;display:flex}.player-shell .card,.player-shell .secret-card{width:100%}.center-title{text-align:center}.center-title h3{margin:0;font-size:21px;line-height:1.12}.center-title .sub{text-align:center;color:var(--muted);max-width:300px;margin:8px auto 0;font-size:12px}.waiting-block{text-align:center;color:var(--muted);place-items:center;gap:8px;margin-top:10px;font-size:12px;display:grid}.turn-card .eyebrow{text-align:center;margin-bottom:4px;display:block}.assignee-line{color:var(--muted);text-align:center;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;font-size:13px;display:flex}.banner{border:1px solid var(--border);background:var(--surface-soft);color:var(--muted);border-radius:12px;align-items:center;gap:8px;padding:10px 12px;font-size:12px;display:flex}.banner.warn{color:var(--accent);border-color:#f4c95d4d}.paused-overlay .lock{animation:.5s lock-shake}@keyframes lock-shake{0%,to{transform:rotate(0)}25%{transform:rotate(-6deg)}75%{transform:rotate(6deg)}}.host-grid{flex-direction:column;gap:12px;max-width:960px;margin:0 auto;padding:18px 14px 40px;display:flex}.host-main{grid-template-columns:1.2fr .8fr;align-items:start;gap:12px;display:grid}.host-stack{flex-direction:column;gap:11px;display:flex}.stat{justify-content:space-between;align-items:center;gap:12px;display:flex}.roomcode{letter-spacing:.16em;color:var(--accent);font-size:25px;font-weight:900;font-family:var(--mono)}.tiny{border:1px solid var(--border);color:#cdd4dd;cursor:pointer;background:#171b21;border-radius:8px;justify-content:center;align-items:center;gap:5px;min-height:32px;padding:7px 10px;font-size:10px;font-weight:900;display:inline-flex}.tiny:hover{border-color:#3a424d}.tiny.danger{color:var(--danger)}.turn{border-top:1px solid #242a32;align-items:center;gap:9px;margin-top:11px;padding-top:11px;display:flex}.turn .live{color:var(--accent);letter-spacing:.1em;margin-left:auto;font-size:9px;font-weight:900}.controls-grid{grid-template-columns:1fr 1fr;gap:6px;display:grid}.controls-grid .btn{min-height:38px;padding:0 8px;font-size:11px}.start-hint{color:var(--faint);text-align:center;margin-top:4px;font-size:11px;line-height:1.4}.mode-chips{flex-wrap:wrap;gap:5px;display:flex}.mode-chips .tiny{cursor:default;background:#12151a}.final{text-align:center;border-radius:var(--radius-card);background:radial-gradient(circle at 50% 35%,#f4c95d1c,#0000 31%),linear-gradient(#111419,#0e1115);place-items:center;min-height:480px;padding:45px 20px;display:grid}.final-inner{max-width:640px}.burst{background:var(--accent);color:#111;border-radius:50%;place-items:center;width:108px;height:108px;margin:0 auto 22px;animation:.6s cubic-bezier(.2,.9,.3,1.2) both burst-in;display:grid;box-shadow:0 0 0 13px #f4c95d0f,0 0 80px #f4c95d24}.burst svg{width:46px;height:46px}@keyframes burst-in{0%{opacity:0;transform:scale(.55)}to{opacity:1;transform:scale(1)}}.final h3{letter-spacing:-.05em;margin:0 0 7px;font-size:43px;font-weight:900;animation:.5s .15s both fade-up}.final .final-sub{color:var(--muted);margin:0;font-size:13px;animation:.5s .25s both fade-up}@keyframes fade-up{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.full{font:20px var(--mono);letter-spacing:.12em;color:var(--accent);word-break:break-word;white-space:pre-wrap;-webkit-user-select:text;user-select:text;background:#15181d;border:1px solid #f4c95d45;border-radius:16px;max-width:620px;margin:20px auto 13px;padding:19px 22px;animation:.5s .35s both fade-up}.final .final-message{color:var(--text);max-width:480px;margin:4px auto 2px;font-size:15px;line-height:1.5;animation:.5s .45s both fade-up}.copy-row{flex-wrap:wrap;justify-content:center;gap:8px;animation:.5s .5s both fade-up;display:flex}.copy-fail{color:var(--danger);margin-top:8px;font-size:11px}.meta{color:var(--faint);flex-wrap:wrap;justify-content:center;gap:12px;margin-top:18px;font-size:10px;animation:.5s .6s both fade-up;display:flex}.confetti{pointer-events:none;z-index:5;position:fixed;inset:0;overflow:hidden}.confetti i{background:var(--accent);border-radius:2px;width:8px;height:8px;animation:linear both confetti-fall;position:absolute;top:-12px}@keyframes confetti-fall{to{opacity:.2;transform:translateY(110vh)rotate(540deg)}}.dialog-backdrop{z-index:40;background:#05070aa8;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.dialog{border:1px solid var(--border);background:#14171c;border-radius:18px;width:min(400px,100%);padding:20px;box-shadow:0 24px 70px #00000080}.dialog h3{margin:0 0 8px;font-size:17px}.dialog p{color:var(--muted);margin:0 0 18px;font-size:13px;line-height:1.5}.dialog-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.status-screen{text-align:center;flex-direction:column;align-items:center;gap:14px;max-width:480px;margin:40px auto 0;padding:0 18px;display:flex}.status-screen h2{letter-spacing:-.04em;margin:0;font-size:30px}.status-screen p{color:var(--muted);max-width:380px;margin:0;font-size:13px;line-height:1.5}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:26px;height:26px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.room-code-big{font:30px var(--mono);letter-spacing:.24em;color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (max-width:950px){.hero{grid-template-columns:1fr;gap:30px}.host-main{grid-template-columns:1fr}}@media (max-width:650px){.wrap{width:calc(100% - 12px)}.nav-link{display:none}.hero{min-height:0;padding:48px 12px 14px}.hero p{font-size:16px}.stage{min-height:500px}.phone{width:235px;min-height:485px}.screen{min-height:465px}.phone.a{right:0}.phone.b{top:78px;left:-4%}.pad{padding:15px}.final{padding:36px 14px}.final h3{font-size:34px}.full{padding:15px 14px;font-size:15px}.roomcode{font-size:20px}.host-grid,.player-shell{padding:14px 10px 32px}}