:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#f7f7f8;--surface:#fff;--text:#1a1c20;--muted:#5c626d;--accent:#4f46e5;--accent-soft:#eef2ff;--found:#16a34a;--found-soft:#dcfce7;--selected:#fde68a;--bad:#dc2626;--border:#e2e4e9;--radius:14px}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#111318;--surface:#1b1e26;--text:#eceef2;--muted:#9aa1ad;--accent:#818cf8;--accent-soft:#262b3f;--found:#4ade80;--found-soft:#14351f;--selected:#a16207;--border:#2a2e39}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.app-shell{max-width:520px;padding:calc(env(safe-area-inset-top,0px) + 12px) 16px calc(env(safe-area-inset-bottom,0px) + 24px);flex-direction:column;gap:12px;margin:0 auto;display:flex}.app-header{justify-content:space-between;align-items:baseline;display:flex}.app-header h1{letter-spacing:.02em;margin:0;font-size:1.25rem}.score{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.9rem}.puzzle-title{color:var(--muted);margin:0;font-size:.85rem}.board{touch-action:none;-webkit-user-select:none;user-select:none;overscroll-behavior:contain;gap:4px;width:100%;max-width:min(100%,62vh);margin:0 auto;display:grid}.cell{aspect-ratio:1;background:var(--surface);border:1px solid var(--border);pointer-events:none;border-radius:8px;justify-content:center;align-items:center;font-size:clamp(.8rem,3.6vw,1.1rem);font-weight:600;display:flex}.cell.selected{background:var(--selected);border-color:#0000}.cell.found{background:var(--found-soft);color:var(--found);border-color:#0000}.clue-card,.explain-card,.share-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:8px;padding:16px;display:flex}.clue-progress{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0;font-size:.75rem}.clue-text{margin:0;font-size:1.05rem;line-height:1.45}.hint-reveal{background:var(--accent-soft);border-radius:8px;margin:0;padding:8px 10px;font-size:.95rem}.hint-button,.primary-button{cursor:pointer;border:none;border-radius:10px;min-height:44px;font-size:1rem;font-weight:600}.hint-button{background:var(--accent-soft);color:var(--accent)}.hint-button:disabled{opacity:.5;cursor:default}.primary-button{background:var(--accent);color:#fff}.explain-answer{color:var(--found);margin:0;font-size:1.15rem;font-weight:700}.explain-text{margin:0;line-height:1.5}.explain-lesson{color:var(--muted);margin:0;font-size:.85rem}.share-headline{margin:0;font-size:1.1rem;font-weight:700}.share-streak{margin:0;font-weight:600}.share-squares{letter-spacing:.1em;margin:0;font-size:1.2rem}.feedback{min-height:1.2em;margin:0;font-size:.9rem}.feedback.bad{color:var(--bad)}.loading{text-align:center;color:var(--muted);padding:40px 0}.solved-list{flex-direction:column;gap:6px;margin:0;padding:0;font-size:.9rem;list-style:none;display:flex}.solved-list .found strong{color:var(--found)}.hint-tag{background:var(--accent-soft);color:var(--accent);text-transform:uppercase;letter-spacing:.05em;border-radius:999px;margin-left:6px;padding:2px 6px;font-size:.7rem}