:root{--bg: #f6f4ef;--surface: #ffffff;--ink: #2b2a28;--muted: #8a857c;--line: #d9d4ca;--accent: #3f6f5f;--accent-soft: #e3ede8;--entry: #1f5fa8;--error: #c04a3a;--error-soft: #f7e3df;--hint: #d9a326;--hint-soft: #fbf1d8;--cell: clamp(44px, 9vmin, 72px);--gap: calc(var(--cell) * .42);font-family:Avenir Next,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}.app{max-width:1080px;margin:0 auto;padding:24px 16px 64px}header h1{margin:0;font-size:1.9rem;letter-spacing:-.02em}header h1 span{margin-left:.4rem;font-size:.62em;font-weight:500;color:var(--accent)}.tagline{margin:2px 0 20px;color:var(--muted)}.type-tabs{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:12px;border-bottom:1px solid var(--line)}.type-tab{border:1px solid transparent;border-bottom:none;border-radius:10px 10px 0 0;background:transparent;color:var(--muted);font-weight:600;padding:8px 16px;margin-bottom:-1px}.type-tab:hover:not(:disabled){background:var(--accent-soft);border-color:transparent;color:var(--accent)}.type-tab.active{background:var(--surface);border-color:var(--line);color:var(--ink)}.controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:12px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:24px}.controls .divider{width:1px;height:24px;background:var(--line)}.controls label{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--muted)}select{font:inherit;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink)}button{font:inherit;padding:8px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);cursor:pointer;transition:background .15s,border-color .15s}button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:#34594d}button.toggled{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}button.ghost{border-color:transparent;background:transparent;color:var(--muted)}main{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px;align-items:start}@media (max-width: 860px){main{grid-template-columns:1fr}}.status-bar{display:flex;align-items:center;gap:8px;margin-bottom:14px}.badge{font-size:.75rem;font-weight:600;text-transform:capitalize;padding:3px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}.badge.medium{background:var(--hint-soft);color:#8a6a15}.badge.hard{background:var(--error-soft);color:var(--error)}.badge.neutral{background:#eceae4;color:var(--muted)}.badge.daily{background:#e5e9f6;color:#3d51a3}.badge.resumed{background:var(--accent-soft);color:var(--accent)}.badge.type{background:var(--ink);color:var(--bg)}.timer{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:600;font-size:1.05rem}.board{display:grid;width:fit-content;padding:calc(var(--gap) * .6);background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 2px 10px #2b2a280f;-webkit-user-select:none;user-select:none}.cell{width:var(--cell);height:var(--cell);display:flex;align-items:center;justify-content:center;padding:0;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);font-size:calc(var(--cell) * .48);color:var(--entry);transition:background .1s,border-color .1s}.cell.given{background:#efece5;color:var(--ink);font-weight:700}.cell.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.cell.error{background:var(--error-soft);border-color:var(--error);color:var(--error)}.cell.hinted{background:var(--hint-soft);border-color:var(--hint)}.cell.done{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.cell.done.given{color:var(--ink)}.notes{display:grid;grid-template-columns:repeat(3,1fr);width:82%;height:82%;align-items:center;justify-items:center}.notes i{font-style:normal;font-size:calc(var(--cell) * .2);color:var(--muted);line-height:1}.sign{display:flex;align-items:center;justify-content:center;color:var(--ink);font-weight:700;font-size:calc(var(--gap) * .78);line-height:1}.sign.v{font-size:calc(var(--gap) * .9)}.sign.empty{visibility:hidden}.toolbar{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.check-result.bad{color:var(--error);font-weight:600}.hint-keys{color:var(--muted);font-size:.8rem}.load-error{color:var(--error);font-weight:600}.hint-panel{margin-top:16px;padding:14px 16px;background:var(--hint-soft);border:1px solid var(--hint);border-radius:12px;max-width:480px}.hint-panel p{margin:0 0 8px}.hint-actions{display:flex;gap:8px}.complete-panel{margin-top:20px;padding:18px 20px;background:var(--accent-soft);border:1px solid var(--accent);border-radius:14px;max-width:480px}.complete-panel h2{margin:0 0 6px}.score-form{display:flex;gap:8px;margin-top:10px}.score-form input{font:inherit;padding:8px 12px;border:1px solid var(--line);border-radius:10px;flex:1;min-width:0}.submitted{color:var(--accent);font-weight:600}.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px}.side-panel h3{margin:0 0 10px;font-size:1rem}.side-panel ol{margin:0 0 18px;padding-left:22px}.side-panel li{display:flex;justify-content:space-between;gap:10px;padding:3px 0;font-size:.9rem}.side-panel li .time{font-variant-numeric:tabular-nums;color:var(--muted)}.side-panel .empty{color:var(--muted);font-size:.9rem}.rules{border-top:1px solid var(--line);padding-top:12px}.rules p{font-size:.85rem;color:var(--muted);margin:0 0 8px}.rule-list{margin:0 0 10px;padding-left:18px;display:block}.rule-list li{display:list-item;font-size:.85rem;color:var(--muted);margin-bottom:6px;line-height:1.35}.rule-aside{font-size:.8rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px;margin:0}.tectonic-board{gap:0}.cell.tectonic{border:1px solid var(--line);border-radius:0;margin:0}.cell.tectonic.edge-top{border-top:2.5px solid var(--ink)}.cell.tectonic.edge-bottom{border-bottom:2.5px solid var(--ink)}.cell.tectonic.edge-left{border-left:2.5px solid var(--ink)}.cell.tectonic.edge-right{border-right:2.5px solid var(--ink)}.cell.tectonic.selected{box-shadow:inset 0 0 0 3px var(--accent)}.cell.tectonic .notes{grid-template-columns:repeat(3,1fr)}.hitori-board{gap:0}.cell.hitori{border:1px solid var(--line);border-radius:0;color:var(--ink);background:var(--surface);transition:background .12s,color .12s}.cell.hitori.shaded{background:var(--ink);color:#6d6a64}.cell.hitori.kept .value{display:flex;align-items:center;justify-content:center;width:78%;height:78%;border:2px solid var(--accent);border-radius:50%;color:var(--accent);font-weight:700}.cell.hitori.selected{box-shadow:inset 0 0 0 3px var(--accent)}.cell.hitori.error{background:var(--error);color:#fff}.cell.hitori.hinted{box-shadow:inset 0 0 0 3px var(--hint)}.cell.hitori.done{border-color:var(--accent)}.cell.hitori.done.shaded{background:#2f4f45}.battleship-wrap{display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap}.battleship-board{--clue: calc(var(--cell) * .62);gap:0;padding:calc(var(--gap) * .4)}.battleship-board .clue{display:flex;align-items:center;justify-content:center;font-size:calc(var(--cell) * .34);font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted)}.battleship-board .clue.corner{visibility:hidden}.cell.battleship{border:1px solid var(--line);border-radius:0;background:var(--surface);padding:0;position:relative}.cell.battleship.water{background:#eef2f4}.cell.battleship .wave{width:58%;height:auto;fill:none;stroke:#9fb3bd;stroke-width:2;stroke-linecap:round}.cell.battleship.ship:after{content:"";position:absolute;top:12%;right:12%;bottom:12%;left:12%;background:var(--ink);border-radius:2px}.cell.battleship.sub:after{top:14%;right:14%;bottom:14%;left:14%;border-radius:50%}.cell.battleship.horizontal:after{top:12%;bottom:12%;left:0;right:0}.cell.battleship.vertical:after{left:12%;right:12%;top:0;bottom:0}.cell.battleship.cap-left:after{left:12%;border-top-left-radius:45%;border-bottom-left-radius:45%}.cell.battleship.cap-right:after{right:12%;border-top-right-radius:45%;border-bottom-right-radius:45%}.cell.battleship.cap-top:after{top:12%;border-top-left-radius:45%;border-top-right-radius:45%}.cell.battleship.cap-bottom:after{bottom:12%;border-bottom-left-radius:45%;border-bottom-right-radius:45%}.cell.battleship.given.ship:after{background:var(--accent)}.cell.battleship.given.water{background:#e2ebe7}.cell.battleship.selected{box-shadow:inset 0 0 0 3px var(--accent);z-index:1}.cell.battleship.error:after{background:var(--error)}.cell.battleship.error{background:var(--error-soft)}.cell.battleship.hinted{box-shadow:inset 0 0 0 3px var(--hint);z-index:1}.cell.battleship.done:after{background:var(--accent)}.fleet h4{margin:0 0 8px;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.fleet ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.fleet .pips{display:flex;gap:2px}.fleet .pips i{width:14px;height:14px;background:var(--ink);border-radius:2px}.fleet .pips i:first-child{border-top-left-radius:45%;border-bottom-left-radius:45%}.fleet .pips i:last-child{border-top-right-radius:45%;border-bottom-right-radius:45%}.fleet li{position:relative;transition:opacity .15s}.fleet li.found{opacity:.35}.fleet li.found:after{content:"";position:absolute;left:-3px;right:-3px;top:50%;height:2px;background:var(--error);border-radius:1px}.tents-board{--clue: calc(var(--cell) * .62);gap:0;padding:calc(var(--gap) * .4)}.tents-board .clue{display:flex;align-items:center;justify-content:center;font-size:calc(var(--cell) * .34);font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted)}.tents-board .clue.corner{visibility:hidden}.cell.tents{border:1px solid var(--line);border-radius:0;background:var(--surface)}.cell.tents .glyph{width:66%;height:66%}.cell.tents.tree{background:#eef3ee;cursor:default}.cell.tents .tree-glyph{fill:var(--accent)}.cell.tents .tent-glyph{fill:none;stroke:var(--ink);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}.cell.tents .grass-dot{width:18%;height:18%;border-radius:50%;background:#c3ccc0}.cell.tents.selected{box-shadow:inset 0 0 0 3px var(--accent)}.cell.tents.error{background:var(--error-soft)}.cell.tents.error .tent-glyph{stroke:var(--error)}.cell.tents.hinted{box-shadow:inset 0 0 0 3px var(--hint)}.cell.tents.done .tent-glyph{stroke:var(--accent)}.kakuro-board{gap:0}.cell.kakuro{border:1px solid var(--line);border-radius:0}.cell.kakuro.blocked{background:var(--ink);position:relative;overflow:hidden}.cell.kakuro .clue-split{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;stroke:#6d6a64;stroke-width:2;vector-effect:non-scaling-stroke;preserveAspectRatio:none}.cell.kakuro .clue-across,.cell.kakuro .clue-down{position:absolute;font-size:calc(var(--cell) * .3);font-weight:700;font-variant-numeric:tabular-nums;color:var(--bg);line-height:1}.cell.kakuro .clue-across{top:10%;right:10%}.cell.kakuro .clue-down{bottom:10%;left:10%}.cell.kakuro .notes{width:88%;height:88%}.cell.kakuro.selected{box-shadow:inset 0 0 0 3px var(--accent);z-index:1}.cell.kakuro.error{background:var(--error-soft);color:var(--error)}.cell.kakuro.hinted{background:var(--hint-soft)}.cell.kakuro.done{background:var(--accent-soft);color:var(--accent)}.abc-board{--clue: calc(var(--cell) * .66);gap:2px;padding:calc(var(--gap) * .4)}.abc-board .clue{display:flex;align-items:center;justify-content:center;font-size:calc(var(--cell) * .4);font-weight:700;color:var(--accent)}.abc-board .clue.corner{visibility:hidden}.cell.abc{border:1.5px solid var(--line);border-radius:6px;font-weight:700}.cell.abc .notes i{font-size:calc(var(--cell) * .22)}