:root{--bg:#f4f5fb;--surface:#fff;--surface-2:#eef0f8;--text:#171a2c;--muted:#6b7086;--line:#d8dbe8;--line-strong:#2b2f45;--primary:#4f46e5;--primary-2:#6366f1;--primary-soft:#e0e7ff;--rival:#f97316;--rival-soft:#ffedd5;--ghost:#0d9488;--ghost-soft:#ccfbf1;--good:#16a34a;--bad:#dc2626;--bad-soft:#fee2e2;--cell-given:#171a2c;--cell-solved:#4338ca;--cell-peer:#eef1fb;--cell-same:#dbe1ff;--cell-selected:#c7d0ff;--shadow:0 1px 2px #1418320f, 0 6px 24px #1418320f;--radius:14px;--board:min(92vw, 540px, calc(100dvh - 330px));--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1120;--surface:#181b2e;--surface-2:#22263d;--text:#e8eaf6;--muted:#9095b0;--line:#2e3350;--line-strong:#8a90b5;--primary-soft:#2a2d5a;--rival-soft:#4a2a14;--ghost-soft:#12403c;--bad-soft:#4a1d1d;--cell-given:#e8eaf6;--cell-solved:#a5b4fc;--cell-peer:#1f2340;--cell-same:#2f3570;--cell-selected:#3b4290;--shadow:0 1px 2px #0000004d, 0 6px 24px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#0f1120;--surface:#181b2e;--surface-2:#22263d;--text:#e8eaf6;--muted:#9095b0;--line:#2e3350;--line-strong:#8a90b5;--primary-soft:#2a2d5a;--rival-soft:#4a2a14;--ghost-soft:#12403c;--bad-soft:#4a1d1d;--cell-given:#e8eaf6;--cell-solved:#a5b4fc;--cell-peer:#1f2340;--cell-same:#2f3570;--cell-selected:#3b4290;--shadow:0 1px 2px #0000004d, 0 6px 24px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed}input{font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;min-width:0;padding:10px 12px}input:focus{outline:2px solid var(--primary);outline-offset:1px}h1,h2,h3{letter-spacing:-.02em;margin:0 0 8px}.muted{color:var(--muted)}.small{font-size:13px}.accent{color:var(--rival);font-weight:600}.up{color:var(--good);font-weight:700}.down{color:var(--bad);font-weight:700}.error{color:var(--bad)}.success{color:var(--good)}.warn{color:var(--rival);margin-top:8px}.dot{background:var(--muted);vertical-align:middle;border-radius:50%;width:8px;height:8px;display:inline-block}.dot.on{background:var(--good);box-shadow:0 0 0 3px color-mix(in srgb, var(--good) 25%, transparent)}.dot.off{background:var(--bad)}.btn{border:1px solid var(--line);background:var(--surface);border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-weight:600;transition:transform 50ms,background .15s,border-color .15s;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--primary)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-2)}.btn.ghost{background:0 0}.btn.small{padding:6px 10px;font-size:13px}.btn.block{width:100%}.link{color:var(--primary);background:0 0;border:0;padding:0;text-decoration:underline}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.card-title{margin-bottom:10px;font-weight:700}.chip{background:var(--surface-2);white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:13px;font-weight:600}.app{flex-direction:column;min-height:100dvh;display:flex}.header{background:var(--surface);border-bottom:1px solid var(--line);z-index:10;justify-content:space-between;align-items:center;gap:12px;padding:10px 20px;display:flex;position:sticky;top:0}.logo{letter-spacing:-.02em;background:0 0;border:0;align-items:center;gap:10px;padding:0;font-size:18px;font-weight:800;display:flex}.logo.big{justify-content:center;margin-bottom:8px;font-size:26px}.logo-mark{background:var(--primary);color:#fff;border-radius:8px;place-items:center;width:30px;height:30px;font-weight:800;display:inline-grid}.logo.big .logo-mark{border-radius:10px;width:40px;height:40px}.nav{align-items:center;gap:4px;display:flex}.nav button{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;background:0 0;border:0;border-radius:8px;max-width:160px;padding:8px 10px;font-weight:600;overflow:hidden}.nav button.active,.nav button:hover{color:var(--text);background:var(--surface-2)}.nav .dot{margin-left:6px}.main{flex:1;width:100%;max-width:1100px;margin:0 auto;padding:20px}.banner{background:var(--primary-soft);text-align:center;padding:8px 20px;font-size:14px}.toast{background:var(--line-strong);color:var(--bg);box-shadow:var(--shadow);z-index:100;border-radius:10px;padding:10px 18px;font-weight:600;animation:.2s pop;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.page{flex-direction:column;gap:16px;max-width:860px;margin:0 auto;display:flex}.welcome{place-items:center;min-height:100dvh;padding:20px;display:grid}.welcome-card{text-align:center;width:min(400px,100%);padding:32px 28px}.form{flex-direction:column;gap:10px;margin:18px 0 12px;display:flex}.home{flex-direction:column;gap:20px;display:flex}.hero{text-align:center;padding:16px 0 0}.hero h1{font-size:clamp(32px,6vw,48px)}.hero p{max-width:560px;margin:0 auto 10px}.difficulty-picker{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.diff{border:2px solid var(--line);background:var(--surface);border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:12px 8px;display:flex}.diff.active{border-color:var(--primary);background:var(--primary-soft)}.diff-name{font-weight:700}.diff-blurb{color:var(--muted);font-size:12px}.modes{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.mode-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;gap:8px;padding:20px;display:flex}.mode-card p{flex:1;margin:0;font-size:14px;line-height:1.45}.mode-icon{font-size:28px}.mode-meta{justify-content:space-between;align-items:baseline;margin:6px 0;display:flex}.rating-badge{font-size:20px;font-weight:800}.how ul{margin:0;padding-left:20px;font-size:14px;line-height:1.6}.waiting{border-color:var(--primary);align-items:center;gap:16px;display:flex}.waiting-body{flex:1;min-width:0}.waiting h3{font-size:17px}.waiting p{margin:4px 0 0}.share-row{gap:8px;margin:8px 0;display:flex}.share-row input{flex:1}.spinner{border:3px solid var(--primary-soft);border-top-color:var(--primary);border-radius:50%;flex:none;width:32px;height:32px;animation:.9s linear infinite spin}.game{grid-template-columns:auto minmax(240px,320px);justify-content:center;align-items:start;gap:24px;display:grid}.game-main{width:var(--board);flex-direction:column;gap:12px;display:flex}.game-bar{justify-content:space-between;align-items:flex-end;display:flex}.game-bar-right{align-items:center;gap:6px;display:flex}.timer{font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:32px;font-weight:800}.timer.frozen{color:var(--bad)}.hint{text-align:center;margin:0}.game-side{flex-direction:column;gap:12px;display:flex}.board-wrap{position:relative}.board{width:var(--board);height:var(--board);background:var(--line-strong);border:2px solid var(--line-strong);-webkit-user-select:none;user-select:none;touch-action:manipulation;border-radius:10px;grid-template-rows:repeat(3,minmax(0,1fr));grid-template-columns:repeat(3,minmax(0,1fr));gap:2px;display:grid;overflow:hidden}.box{background:var(--line);grid-template-rows:repeat(3,minmax(0,1fr));grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;display:grid}.cell{background:var(--surface);min-width:0;min-height:0;font-size:calc(var(--board) / 9 * .55);border:0;place-items:center;padding:0;font-weight:500;line-height:1;transition:background .1s;display:grid;position:relative;overflow:hidden}.cell.given{color:var(--cell-given);font-weight:700}.cell.solved{color:var(--cell-solved)}.cell.peer{background:var(--cell-peer)}.cell.same{background:var(--cell-same)}.cell.selected{background:var(--cell-selected)}.cell.pending{color:var(--muted)}.cell.wrong{background:var(--bad-soft);color:var(--bad);animation:.35s shake}.cell.rival:after{content:"";background:var(--rival);opacity:.55;border-radius:50%;width:22%;height:22%;position:absolute;top:3px;right:3px}.marks-ghost .cell.rival:after{background:var(--ghost)}.board-hidden .cell{background:var(--surface-2)}.notes{grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);width:92%;height:92%;display:grid}.notes span{font-size:calc(var(--board) / 9 * .24);color:var(--muted);place-items:center;font-weight:600;display:grid}.notes span.hl{color:var(--primary)}.overlay{border-radius:10px;place-items:center;display:grid;position:absolute;inset:0}.countdown{background:color-mix(in srgb, var(--surface) 60%, transparent);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);text-align:center;flex-direction:column;align-content:center}.countdown .count{color:var(--primary);font-size:96px;font-weight:800;animation:1s infinite pop}.frozen-banner{pointer-events:none;white-space:nowrap;box-shadow:var(--shadow);background:var(--bad);color:#fff;border-radius:999px;padding:6px 14px;font-size:14px;font-weight:700;position:absolute;top:-14px;left:50%;transform:translate(-50%)}.emote-float{pointer-events:none;flex-direction:column;gap:4px;display:flex;position:absolute;top:30%;right:-8px}.emote-float span{background:var(--surface);box-shadow:var(--shadow);border-radius:12px;padding:2px 8px;font-size:28px;animation:3.5s forwards floatUp}.emote-float span.theirs{border:2px solid var(--rival)}.result{background:color-mix(in srgb, var(--bg) 70%, transparent);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:5}.result-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;width:min(92%,400px);padding:24px;animation:.25s pop}.result-icon{font-size:48px}.result-stats{text-align:left;grid-template-columns:repeat(2,1fr);gap:12px;margin:16px 0;display:grid}.result-stats .label{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.result-stats .value{font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.result-actions{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:8px;display:flex}.pad{flex-direction:column;gap:8px;display:flex}.pad-digits{grid-template-columns:repeat(9,1fr);gap:6px;display:grid}.pad-digit{aspect-ratio:.8;border:1px solid var(--line);background:var(--surface);touch-action:manipulation;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:2px;display:flex}.pad-digit:hover:not(:disabled){border-color:var(--primary)}.pad-digit:disabled{opacity:.35}.pad-num{font-size:calc(var(--board) / 9 * .5);color:var(--primary);font-weight:700;line-height:1}.pad-left{color:var(--muted);font-size:11px}.pad-tools{grid-template-columns:1fr 1fr;gap:6px;display:grid}.tool{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px;font-weight:600}.tool.on{background:var(--primary);color:#fff;border-color:var(--primary)}.rival-head{justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.rival-name{text-overflow:ellipsis;white-space:nowrap;font-weight:700;overflow:hidden}.rival-count{color:var(--rival);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.rival .mini{margin:0 auto}.progress{flex-direction:column;gap:6px;margin-top:12px;display:flex}.progress-row{grid-template-columns:40px 1fr;align-items:center;gap:8px;display:grid}.bar{background:var(--surface-2);border-radius:999px;height:8px;overflow:hidden}.fill{border-radius:999px;height:100%;transition:width .3s}.fill.me{background:var(--primary)}.fill.them{background:var(--rival)}.emotes{flex-wrap:wrap;gap:4px;margin-top:12px;display:flex}.emote-btn{border:1px solid var(--line);background:var(--surface-2);border-radius:8px;padding:4px 8px;font-size:16px}.mini{background:var(--line-strong);border:1.5px solid var(--line-strong);border-radius:4px;grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);gap:1.5px;display:grid;overflow:hidden}.mini-box{background:var(--line);grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);gap:.5px;display:grid}.mini-box span{background:var(--surface);transition:background .3s}.mini-box span.g{background:var(--surface-2)}.mini-opponent .mini-box span.f{background:var(--rival)}.mini-ghost .mini-box span.f{background:var(--ghost)}.ghosts{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.ghost{flex-direction:column;align-items:center;gap:2px;min-width:0;display:flex}.ghost-name{text-overflow:ellipsis;white-space:nowrap;max-width:100%;margin-top:4px;font-size:13px;font-weight:600;overflow:hidden}.board-list{max-height:300px;margin:0;padding:0;font-size:14px;list-style:none;overflow:auto}.board-list li{border-radius:6px;grid-template-columns:28px 1fr auto;gap:6px;padding:5px 6px;display:grid}.board-list li .rank{color:var(--muted);font-variant-numeric:tabular-nums}.board-list li .nm{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.board-list li .tm{font-variant-numeric:tabular-nums;font-weight:600}.board-list li.you{background:var(--primary-soft);font-weight:700}.board-list li.racing{color:var(--ghost)}.toggle{color:var(--muted);cursor:pointer;align-items:center;gap:8px;display:flex}.tabs{flex-wrap:wrap;gap:6px;display:flex}.tabs button{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 14px;font-weight:600}.tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.table{border-collapse:collapse;width:100%;font-size:14px}.table-scroll{overflow-x:auto}.table th{text-align:left;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px;font-weight:600}.table th,.table td{border-bottom:1px solid var(--line);padding:8px 6px}.table tr.me{background:var(--primary-soft)}.settings{flex-direction:column;gap:10px;display:flex}.row-form{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.row-form input{flex:1;min-width:140px}@media (width<=900px){.game{grid-template-columns:1fr;justify-items:center}.game-side{width:var(--board);order:-1}.game-side .rival .mini{display:none}.game-side .rival .emotes{margin-top:6px}.ghosts{grid-template-columns:repeat(4,1fr)}.ghost .mini{width:64px!important;height:64px!important}.board-list{max-height:120px}.hint{display:none}.modes{grid-template-columns:1fr}:root{--board:min(94vw, 540px)}}@media (width<=560px){.main{padding:12px}.header{padding:8px 12px}.logo-text{display:none}.difficulty-picker{grid-template-columns:repeat(3,1fr)}.waiting{flex-wrap:wrap}.table{font-size:12px}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pop{0%{opacity:.5;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes shake{25%{transform:translate(-3px)}75%{transform:translate(3px)}}@keyframes floatUp{0%{opacity:0;transform:translateY(10px)}10%{opacity:1;transform:none}80%{opacity:1}to{opacity:0;transform:translateY(-20px)}}