:root{--paper: #eef1f5;--surface: #ffffff;--ink: #18203a;--ink-soft: #5a6380;--line: #d3d9e4;--ghost: rgba(24, 32, 58, .16);--wrong: #c2410c;--ok: #15803d;--accent: #3b5bdb;--hint: #b45309;--blocked: #c9cfdb;--p1: #3b5bdb;--p2: #d9480f;--p3: #2b8a3e;--p4: #ae3ec9;--p5: #e8590c;--p6: #0c8599;--p7: #c2255c;--font-display: "Unbounded", "Trebuchet MS", system-ui, sans-serif;--font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Apple SD Gothic Neo", "Noto Sans JP", "Noto Sans KR", sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--paper: #10141f;--surface: #181e2d;--ink: #e6eaf4;--ink-soft: #9aa3bd;--line: #2b3348;--ghost: rgba(230, 234, 244, .16);--wrong: #fb923c;--ok: #4ade80;--accent: #7c95ff;--hint: #fbbf24;--blocked: #2b3348;--p1: #7c95ff;--p2: #ff8a5b;--p3: #5fd47a;--p4: #d58cf0;--p5: #ffa94d;--p6: #3bc9db;--p7: #f783ac;color-scheme:dark}}:root[data-theme=dark]{--paper: #10141f;--surface: #181e2d;--ink: #e6eaf4;--ink-soft: #9aa3bd;--line: #2b3348;--ghost: rgba(230, 234, 244, .16);--wrong: #fb923c;--ok: #4ade80;--accent: #7c95ff;--hint: #fbbf24;--blocked: #2b3348;--p1: #7c95ff;--p2: #ff8a5b;--p3: #5fd47a;--p4: #d58cf0;--p5: #ffa94d;--p6: #3bc9db;--p7: #f783ac;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0}body{background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.45;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:max(12px,env(safe-area-inset-top,0px)) 40px}[hidden]{display:none!important}.app{max-width:980px;margin:0 auto;display:grid;gap:16px}button,a.button{font:inherit;font-size:14px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 12px;cursor:pointer;min-height:44px}a.button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}a.button:hover,button:hover:not(:disabled){border-color:var(--ink-soft)}button:disabled{opacity:.4;cursor:default}button:focus-visible,select:focus-visible,.tray-piece:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}button.link{border:none;background:none;color:var(--ink-soft);text-decoration:underline}kbd{font-family:var(--font-mono);font-size:11px;color:var(--ink-soft);margin-left:4px}select{font:inherit;padding:8px 10px;min-height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}.top{display:flex;align-items:center;gap:8px}.brand{font-family:var(--font-display);font-weight:700;font-size:26px;letter-spacing:-.02em;margin:0}.modes{display:flex;gap:6px}.modes button[aria-selected=true],.tabs button[aria-selected=true],.segmented button[aria-checked=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.top-actions{margin-left:auto;display:flex;gap:4px}@media(max-width:420px){.brand{font-size:22px}.modes button{padding:8px 10px}.top-actions .icon-btn{width:40px}}.icon-btn{width:44px;padding:0;display:grid;place-items:center;color:var(--ink)}.empty{color:var(--ink-soft)}.game{display:grid;gap:20px;grid-template-columns:1fr}@media(min-width:820px){.game{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start}}.board-col{display:grid;gap:10px;justify-items:center;min-width:0}.puzzle-meta{width:100%;max-width:440px;display:flex;justify-content:space-between;gap:12px;align-items:baseline;font-size:13px;color:var(--ink-soft)}.puzzle-meta strong{color:var(--ink);font-weight:600}.timer{font-family:var(--font-mono);font-size:18px;color:var(--ink);font-variant-numeric:tabular-nums}.board-wrap{width:100%;max-width:440px}.board-wrap.small{max-width:300px;margin:0 auto}.board{width:100%;height:auto;display:block;touch-action:none;user-select:none;-webkit-user-select:none}.board .count{font-size:.34px;font-family:var(--font-mono)}.board .badge{font-size:.27px;font-weight:600;font-family:var(--font-mono);fill:#fff}.status{margin:0;font-size:13px;color:var(--ink-soft);min-height:1.4em;text-align:center}.status.win{color:var(--ok);font-weight:600}.message{margin:0;width:100%;max-width:440px;font-size:14px;border-radius:10px;padding:8px 12px;border:1px solid var(--line);background:var(--surface)}.message.hint{background:color-mix(in srgb,var(--hint) 12%,var(--surface));border-color:color-mix(in srgb,var(--hint) 40%,var(--line))}.controls{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:440px}.hint-btn{border-color:var(--hint);color:var(--hint);font-weight:600}.hint-btn.off{opacity:.6}.hint-btn .n{font-family:var(--font-mono);font-size:12px;margin-left:6px;background:var(--hint);color:var(--surface);border-radius:999px;padding:1px 7px}.result{width:100%;max-width:440px;display:grid;gap:10px;background:var(--surface);border:1px solid var(--ok);border-radius:14px;padding:14px 16px}.result h3{margin:0;font-family:var(--font-display);font-weight:500;font-size:17px}.score-line{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px}.score-line b{font-family:var(--font-mono);font-weight:500}.share{font-family:var(--font-mono);font-size:14px;background:var(--paper);border-radius:8px;padding:8px 10px;-webkit-user-select:all;user-select:all;overflow-wrap:anywhere;white-space:pre-line}.result-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.countdown{font-size:13px;color:var(--ink-soft);font-variant-numeric:tabular-nums}.side{display:grid;gap:10px;min-width:0;align-content:start}.panel-title{font-family:var(--font-display);font-weight:500;font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin:0;color:var(--ink-soft)}.tray{display:flex;flex-wrap:wrap;gap:10px}.tray-piece{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px;min-width:64px;min-height:64px;display:grid;place-items:center;touch-action:none;cursor:grab;position:relative}.tray-piece.placed{opacity:.35}.tray-piece.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.tray-piece.locked:after{content:"\1f512";position:absolute;bottom:2px;right:5px;font-size:10px}.tray-piece .pid{position:absolute;top:4px;left:7px;font-family:var(--font-mono);font-size:10px;color:var(--ink-soft)}.tray-piece svg{display:block;pointer-events:none}.help{font-size:13px;color:var(--ink-soft);margin:0}.floating{position:fixed;left:0;top:0;pointer-events:none;z-index:1000}.modal{border:1px solid var(--line);border-radius:16px;padding:0;background:var(--surface);color:var(--ink);width:min(560px,calc(100vw - 24px));max-height:calc(100dvh - 32px)}.modal::backdrop{background:#0a0e1873}.modal-body{padding:14px 16px 18px;display:grid;gap:12px}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.modal-head h2{margin:0;font-family:var(--font-display);font-weight:500;font-size:18px}.tabs{display:flex;gap:6px}.note{font-size:12px;color:var(--ink-soft);margin:0}.month{font-family:var(--font-display);font-weight:500;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);margin:6px 0 0}.days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}.days.hours{grid-template-columns:repeat(6,minmax(0,1fr))}.hour-day>summary{cursor:pointer;display:flex;align-items:center;gap:8px;min-height:44px;margin:0;list-style:none}.hour-day>summary::-webkit-details-marker{display:none}.hour-day>summary:before{content:"\25b8";font-size:11px;transition:transform .15s}.hour-day[open]>summary:before{transform:rotate(90deg)}.hour-count{margin-left:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:0}.hour-day+.hour-day{border-top:1px solid var(--line)}.dow{font-size:11px;color:var(--ink-soft);text-align:center;text-transform:uppercase}.day{padding:6px 2px 5px;display:grid;justify-items:center;gap:3px;font-size:13px;font-variant-numeric:tabular-nums}.day[aria-current=true]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.day.solved{background:color-mix(in srgb,var(--ok) 14%,var(--surface))}.pips{display:flex;gap:2px}.pips i{width:4px;height:4px;border-radius:1px;background:var(--line)}.pips i.on{background:var(--ink)}.settings{display:grid;gap:10px}.credit{font-size:12px;color:var(--ink-soft);margin:4px 0 0;text-align:center;letter-spacing:.04em}.field{font-size:13px;color:var(--ink-soft)}.segmented{display:flex;gap:6px;flex-wrap:wrap}.toggle{display:flex;align-items:center;gap:8px;min-height:44px;cursor:pointer}.toggle input{width:20px;height:20px}.rules{margin:0;padding-left:20px;display:grid;gap:6px}.tutorial{display:grid;gap:12px}.tut-progress{margin:0;font-family:var(--font-mono);font-size:12px;color:var(--ink-soft)}.tut-text{margin:0;font-size:15px;min-height:2.9em}.tut-actions{display:flex;justify-content:space-between;align-items:center}@media(prefers-reduced-motion:no-preference){.result{animation:rise .25s ease-out}}@keyframes rise{0%{transform:translateY(6px);opacity:.4}to{transform:none;opacity:1}}.standing{margin:0;font-size:14px;color:var(--ok);font-weight:500}.table-wrap{overflow-x:auto}.lb{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}.lb th{text-align:left;font-weight:500;color:var(--ink-soft);font-size:11px;text-transform:uppercase;letter-spacing:.06em;padding:6px;border-bottom:1px solid var(--line)}.lb td{padding:7px 6px;border-bottom:1px solid var(--line)}.lb .num{text-align:right;font-family:var(--font-mono)}.lb tr.tier td{border-top:2px solid var(--hint)}.inline-form{display:grid;gap:6px}.inline-form .row{display:flex;gap:8px}.inline-form input{flex:1;min-width:0;font:inherit;min-height:44px;padding:8px 10px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}