:root{color:#1f2933;background:#fff;font-family:system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{min-height:100vh;margin:0}#root{min-height:100vh}.puzzle-page{--ink:#1f2933;--line:#cbd5e1;--accent:#3b82f6;color:var(--ink);max-width:960px;margin:0 auto;padding:1rem 1.25rem 2rem;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.pp-header h1{margin:0 0 1rem;font-size:1.4rem}.pp-layout{flex-wrap:wrap;align-items:flex-start;gap:1.5rem;display:flex}.pp-main{flex:none}.pp-side{flex-direction:column;flex:280px;gap:1rem;min-width:260px;display:flex}@media (width<=720px){.pp-layout{flex-direction:column}.pp-side{width:100%}}.pp-actions{gap:.5rem;display:flex}.btn{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;padding:.55rem 1rem;font-size:.95rem}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn-ghost{background:#f1f5f9}.btn:hover{filter:brightness(.97)}.pp-sample{border:1px dashed var(--line);border-radius:10px;padding:.7rem .9rem}.pp-sample-note{color:#64748b;margin:.5rem 0 0;font-size:.8rem}.btn:disabled{opacity:.5;cursor:not-allowed}.rule-panel{border:1px solid var(--line);background:#f8fafc;border-radius:10px;padding:.9rem 1rem}.rp-title{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.rp-title h2{margin:0;font-size:1.1rem}.rp-level{color:#475569;background:#e2e8f0;border-radius:999px;padding:.15rem .55rem;font-size:.7rem}.rp-desc{color:#475569;margin:.5rem 0;font-size:.9rem}.rp-goals{margin:.5rem 0 0;padding:0;font-size:.9rem;line-height:1.7;list-style:none}.mirror-palette h3{margin:0 0 .5rem;font-size:1rem}.mp-options{gap:.5rem;display:flex}.mp-btn{border:2px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;width:52px;height:52px;font-family:ui-monospace,monospace;font-size:1.6rem;font-weight:700}.mp-btn.is-selected{border-color:var(--accent);background:#eff6ff}.mp-tip{color:#64748b;margin:.5rem 0 0;font-size:.8rem}.result-panel{border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;font-size:.9rem}.result-panel h3{margin:0 0 .5rem}.result-panel ul{margin:0;padding-left:1.1rem;line-height:1.7}.result-panel.is-empty{color:#64748b;background:#f8fafc}.result-panel.is-success{color:#166534;background:#f0fdf4;border-color:#16a34a}.result-panel.is-fail{color:#9a3412;background:#fff7ed;border-color:#ea580c}.rp-score{margin:.6rem 0 0;font-weight:700}.pb-wrap{display:inline-block}.pb-col-labels,.pb-row-labels{display:flex}.pb-col-labels{flex-direction:row}.pb-row-labels{flex-direction:column;width:52px}.pb-label{color:#94a3b8;justify-content:center;align-items:center;font-size:.8rem;font-weight:600;display:flex}.pb-body{display:flex}.pb-grid{background:#fff;border:2px solid #334155;gap:0;display:grid;position:relative}.pb-cell{cursor:pointer;z-index:1;background:#fff;border:1px solid #cbd5e1;justify-content:center;align-items:center;padding:0;font-size:1.6rem;display:flex;position:relative}.pb-cell:hover{background:#f8fafc}.pb-cell.is-star{background:#fef9c3}.pb-cell.is-forbidden{background:#fee2e2}.pb-cell.is-entry{box-shadow:inset 0 0 0 3px #22c55e}.pb-cell.is-exit{box-shadow:inset 0 0 0 3px #3b82f6}.pc-mirror{color:#0f172a;font-family:ui-monospace,monospace;font-size:1.9rem;font-weight:900;line-height:1}.pc-forbidden{color:#dc2626;font-weight:900}.pc-allowed{color:#cbd5e1}.pc-star{color:#eab308;font-size:1.4rem}.path-overlay{pointer-events:none;z-index:3;position:absolute;top:0;left:0;overflow:visible}.editor-page{color:#1f2933;max-width:1040px;margin:0 auto;padding:1rem 1.25rem 2rem;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.editor-page h1{margin:0;font-size:1.3rem}.ed-hint{color:#64748b;margin:.3rem 0 1rem;font-size:.9rem}.ed-layout{flex-wrap:wrap;align-items:flex-start;gap:1.5rem;display:flex}.ed-board-col{flex:none}.ed-form-col{flex-direction:column;flex:320px;gap:1rem;min-width:300px;display:flex}.ed-modes,.ed-size{flex-wrap:wrap;align-items:center;gap:.4rem;margin-bottom:.75rem;font-size:.9rem;display:flex}.be-col-labels,.be-row-labels{display:flex}.be-row-labels{flex-direction:column;width:46px}.be-body{display:flex}.be-label{color:#94a3b8;justify-content:center;align-items:center;font-size:.75rem;font-weight:600;display:flex}.be-grid{background:#fff;border:2px solid #334155;display:grid}.be-cell{cursor:pointer;background:#fff;border:1px solid #cbd5e1;justify-content:center;align-items:center;padding:0;font-size:1.3rem;display:flex}.be-cell:hover{background:#f8fafc}.be-cell.is-star{background:#fef9c3}.be-cell.is-forbidden{background:#fee2e2}.be-forbidden{color:#dc2626;font-weight:800}.be-allowed{color:#94a3b8}.rule-editor,.export-json{background:#f8fafc;border:1px solid #cbd5e1;border-radius:10px;padding:.9rem 1rem}.rule-editor h3,.export-json h3{margin:0 0 .6rem;font-size:1rem}.re-field{justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.5rem;font-size:.85rem;display:flex}.re-field span{color:#475569}.re-field input,.re-field select{border:1px solid #cbd5e1;border-radius:6px;padding:.3rem .4rem;font-size:.85rem}.re-field input[type=number]{width:90px}.re-group{border:1px solid #e2e8f0;border-radius:8px;gap:.4rem;margin-bottom:.6rem;padding:.5rem;display:flex}.re-group legend{color:#475569;padding:0 .3rem;font-size:.8rem}.re-group select,.re-group input{border:1px solid #cbd5e1;border-radius:6px;padding:.3rem;font-size:.8rem}.re-group input[type=number]{width:60px}.ej-head{justify-content:space-between;align-items:center;display:flex}.ej-code{color:#e2e8f0;background:#0f172a;border-radius:8px;max-height:360px;padding:.8rem;font-size:.78rem;line-height:1.5;overflow:auto}.app-nav{background:#fff;border-bottom:1px solid #e2e8f0;gap:.25rem;padding:.5rem 1rem;font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex}.app-tab{cursor:pointer;color:#475569;background:0 0;border:none;border-radius:8px;padding:.5rem .9rem;font-size:.95rem}.app-tab.is-active{color:#2563eb;background:#eff6ff;font-weight:600}.app-tab:hover{background:#f1f5f9}