:root{--paper:#f8f6f1;--card:#fff;--ink:#1b1a17;--ink-soft:#4a4740;--muted:#7a766d;--line:#ddd8cc;--line-strong:#b9b3a4;--brand:#0b1f3d;--brand-ink:#fff;--brand-soft:#e6ecfb;--cell-bg:#fff;--cell-block:#1b1a17;--cell-word:#d6e4ff;--cell-selected:#ffd84d;--cell-text:#1b1a17;--cell-line:#6b675f;--cell-wrong:#d1342f;--cell-revealed:#2f6fed;--cell-solved:#dff5e3;--danger:#c2281f;--success:#1f7a3a;--radius:14px;--shadow:0 10px 30px #1b1a1714, 0 1px 3px #1b1a170f;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-display:"Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;--font-grid:"Helvetica Neue", Helvetica, Arial, -apple-system, "Segoe UI", sans-serif;--cell:40px;--ease-out:cubic-bezier(.22, 1, .36, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1)}@media 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.time{font-variant-numeric:tabular-nums;margin:8px 0 2px;font-size:2.6rem;font-weight:800}.win-body .note{color:var(--muted);margin:0 0 18px}.win-body .actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.confetti{pointer-events:none;z-index:50;position:fixed;inset:0;overflow:hidden}.confetti i{opacity:.9;border-radius:2px;width:8px;height:14px;animation:1.8s ease-in forwards confetti-fall;position:absolute;top:-12px}@keyframes confetti-fall{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(110vh)rotate(720deg)}}.solved-banner{background:var(--cell-solved);color:var(--success);justify-content:center;align-items:center;gap:8px;padding:8px 12px;font-weight:600;display:flex}.field{flex-direction:column;gap:6px;font-size:.9rem;font-weight:600;display:flex}.field input,.field select{font:inherit;border:1px solid var(--line-strong);background:var(--card);color:var(--ink);border-radius:10px;padding:10px 12px;font-weight:400}.field 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0;padding-left:18px}.table-wrap{overflow-x:auto}.table{border-collapse:collapse;width:100%;font-size:.95rem}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;padding:10px 8px}.table th{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:.75rem}.preview-wrap{justify-content:center;padding:12px 0;display:flex;overflow-x:auto}.steps{padding-left:20px;line-height:1.7}.steps code,.inline-code{background:var(--paper);border-radius:6px;padding:2px 6px;font-size:.9em}.center{text-align:center}.loading{text-align:center;color:var(--muted);padding:48px 16px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}