:root{--paper: #f6f1e8;--paper-raised: #fffdf8;--ink: #1d1a15;--muted: #8b8175;--line: #ded4c2;--tile-face: #fffdf7;--tile-edge: #e3d9c7;--tile-ink: #221e18;--accent: #b25a2b;--accent-ink: #ffffff;--accent-soft: rgba(178, 90, 43, .12);--shadow-tile: 0 1px 2px rgba(60, 45, 25, .14), 0 3px 8px rgba(60, 45, 25, .07);--shadow-lift: 0 12px 28px rgba(50, 38, 20, .26)}@media(prefers-color-scheme:dark){:root{--paper: #15171a;--paper-raised: #1c1f24;--ink: #eeebe4;--muted: #888e97;--line: #2c3138;--tile-face: #282c33;--tile-edge: #3a404a;--tile-ink: #f4f1ea;--accent: #e08a4c;--accent-ink: #1a1206;--accent-soft: rgba(224, 138, 76, .16);--shadow-tile: 0 1px 2px rgba(0, 0, 0, .4), 0 3px 8px rgba(0, 0, 0, .24);--shadow-lift: 0 12px 28px rgba(0, 0, 0, .55)}}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--paper);color:var(--ink);font-family:ui-rounded,SF Pro Rounded,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none;overflow:hidden}.app{display:flex;flex-direction:column;gap:8px;height:100dvh;max-width:560px;margin:0 auto;padding:env(safe-area-inset-top) 10px calc(10px + env(safe-area-inset-bottom))}.header{display:flex;align-items:flex-end;justify-content:space-between;padding:12px 4px 2px}.wordmark{margin:0;font-size:27px;font-weight:700;letter-spacing:-.02em;line-height:1}.wordmark-q{color:var(--accent)}.tagline{margin:3px 0 0;font-size:11px;color:var(--muted);letter-spacing:.01em}.header-right{display:flex;align-items:center;gap:12px}.counters{display:flex;flex-direction:column;align-items:flex-end;gap:1px;font-variant-numeric:tabular-nums}.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;color:var(--ink);background:var(--paper-raised);box-shadow:inset 0 0 0 1px var(--line);cursor:pointer;transition:transform .08s ease}.icon-btn:active{transform:scale(.95)}.icon-btn:focus-within{outline:2px solid var(--accent);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.puzzle-no{font-size:15px;font-weight:600}.roll-no{font-size:11px;color:var(--muted)}.set-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;letter-spacing:.04em;color:var(--muted)}.panel{flex:1;min-height:0;display:grid;place-items:center;overflow:auto}.grid{display:grid}.cell{position:relative;cursor:default}.cell:after{content:"";position:absolute;inset:2px;border-radius:7px;box-shadow:inset 0 0 0 1px var(--line);transition:background-color .12s ease,box-shadow .12s ease}.cell[data-armed]{cursor:pointer}.cell[data-target]:after{background:var(--accent-soft);box-shadow:inset 0 0 0 2px var(--accent)}.tile-slot{display:grid;place-items:center;pointer-events:none;position:relative;z-index:1}.tile,.ghost{display:grid;place-items:center;border-radius:22%;background:linear-gradient(180deg,var(--tile-face),color-mix(in srgb,var(--tile-face) 91%,var(--ink)));color:var(--tile-ink);font-family:inherit;font-weight:700;line-height:1;letter-spacing:.01em;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.tile{appearance:none;border:none;padding:0;pointer-events:auto;cursor:grab;touch-action:none;box-shadow:0 0 0 1px var(--tile-edge),var(--shadow-tile);transition:transform .12s ease,box-shadow .12s ease,opacity .1s ease}.tile[data-state=selected]{transform:translateY(-3px);box-shadow:0 0 0 2px var(--accent),var(--shadow-tile)}.tile[data-state=dragging]{opacity:0}.tile:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ghost{position:fixed;top:0;left:0;z-index:40;pointer-events:none;visibility:hidden;opacity:0;box-shadow:0 0 0 1px var(--tile-edge),var(--shadow-lift)}.ghost[data-active]{visibility:visible;opacity:.72}.status{margin:0;min-height:1.2em;text-align:center;font-size:12.5px;color:var(--muted)}.tray{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;min-height:74px;padding:12px 10px;border-radius:16px;background:var(--paper-raised);box-shadow:inset 0 0 0 1px var(--line);transition:box-shadow .12s ease}.tray[data-drop]{box-shadow:inset 0 0 0 2px var(--accent);cursor:pointer}.tray-empty{margin:0;font-size:13px;color:var(--muted)}.actions{display:flex;gap:8px}.btn{flex:1;appearance:none;border:none;border-radius:12px;padding:13px 10px;min-height:46px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .12s ease,transform .08s ease}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.4;cursor:default}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-quiet{background:var(--paper-raised);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}.btn-ghost{background:none;color:var(--muted);font-weight:500}.banner{width:100%;appearance:none;border:none;border-radius:10px;padding:10px;background:var(--accent-soft);color:var(--accent);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer}.sheet-backdrop{position:fixed;inset:0;z-index:50;display:grid;place-items:end center;padding:16px 12px calc(16px + env(safe-area-inset-bottom));background:#140e0673;animation:fade .16s ease}.sheet{display:flex;flex-direction:column;gap:8px;width:100%;max-width:400px;padding:20px 18px 12px;border-radius:20px;background:var(--paper-raised);box-shadow:var(--shadow-lift);animation:rise .22s cubic-bezier(.2,.8,.3,1)}.sheet-title{margin:0;font-size:19px;font-weight:700}.sheet-sub{margin:-4px 0 0;font-size:13px;color:var(--muted)}.sheet-note-warn{color:var(--accent);font-weight:600}.share-preview{margin:6px 0 2px;padding:0;overflow-x:auto;text-align:center;white-space:pre;user-select:text;-webkit-user-select:text;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:19px;line-height:1.1}.sheet-note{margin:0;text-align:center;font-size:11.5px;color:var(--muted)}.sheet-secondary{display:flex;gap:8px;margin-top:2px}.sheet-secondary .btn{font-size:13px;min-height:42px}.scan-grid{display:grid;justify-content:center;gap:3px;margin:8px auto 4px}.scan-tile{appearance:none;border:none;padding:0;width:100%;height:100%;display:grid;place-items:center;border-radius:20%;font-family:inherit;font-weight:700;line-height:1;color:var(--tile-ink);background:linear-gradient(180deg,var(--tile-face),color-mix(in srgb,var(--tile-face) 91%,var(--ink)));box-shadow:0 0 0 1px var(--tile-edge);cursor:pointer}.scan-tile[data-unsure]{box-shadow:0 0 0 2px var(--accent)}.scan-tile[data-editing]{box-shadow:0 0 0 2px var(--accent);transform:translateY(-2px)}.picker{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin:4px 0 2px}.picker-key{appearance:none;border:none;border-radius:8px;padding:9px 0;font-family:inherit;font-size:14px;font-weight:600;color:var(--ink);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);cursor:pointer}.picker-key:active{background:var(--accent-soft)}.check{display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--muted);cursor:pointer}.spinner{width:28px;height:28px;margin:14px auto 6px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade{0%{opacity:0}}@keyframes rise{0%{transform:translateY(16px);opacity:0}}@media(prefers-reduced-motion:reduce){*,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}