.sokoban-shell{color:#f1f5f9;box-sizing:border-box;background:radial-gradient(circle at 50% 20%,#1e293b 0%,#0f172a 70%,#020617 100%);flex-direction:column;align-items:center;min-height:100vh;padding:1rem;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;display:flex;position:relative;overflow-x:hidden}.sokoban-header{z-index:10;border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;width:100%;max-width:900px;margin-bottom:1rem;padding:.75rem 1rem;display:flex}.sokoban-home{color:#94a3b8;background:#ffffff0d;border-radius:6px;padding:.4rem .8rem;font-size:.9rem;text-decoration:none;transition:all .2s}.sokoban-home:hover{color:#fff;background:#ffffff1f}.sokoban-brand{align-items:center;gap:.75rem;display:flex}.sokoban-brand span.seal{color:#fff;background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%);border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;font-weight:900;display:inline-flex;box-shadow:0 4px 12px #f59e0b4d}.sokoban-brand h1{margin:0;font-size:1.25rem;font-weight:700}.sokoban-brand small{color:#fcd34d;font-size:.65rem;display:block}.sokoban-stats-bar{box-sizing:border-box;background:#0f172acc;border:1px solid #ffffff1a;border-radius:12px;justify-content:space-between;align-items:center;width:100%;max-width:600px;margin-bottom:1rem;padding:.6rem 1.2rem;display:flex}.sokoban-viewport{box-sizing:border-box;background:#090d16;border:4px solid #334155;border-radius:16px;justify-content:center;align-items:center;width:100%;max-width:600px;min-height:min(400px,100dvh - 250px);padding:1.5rem;display:flex;box-shadow:inset 0 0 20px #000c,0 10px 30px #0006}.sokoban-grid{-webkit-user-select:none;user-select:none;gap:2px;display:grid}.sokoban-cell{border-radius:4px;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.2rem;transition:all .1s;display:flex;position:relative}.sokoban-cell.wall{background:linear-gradient(135deg,#475569 0%,#1e293b 100%);border:1px solid #64748b;box-shadow:inset 0 2px 4px #fff3}.sokoban-cell.floor{background:#ffffff08}.sokoban-cell.goal:after{content:"🎯";opacity:.7;font-size:.9rem}.sokoban-cell.box{background:linear-gradient(135deg,#d97706 0%,#b45309 100%);border:2px solid #f59e0b;border-radius:6px;box-shadow:0 4px 8px #0006}.sokoban-cell.box.on-goal{background:linear-gradient(135deg,#10b981 0%,#059669 100%);border:2px solid #34d399;box-shadow:0 0 12px #34d39999}.sokoban-cell.player{background:#3b82f6;border:2px solid #60a5fa;border-radius:50%;box-shadow:0 0 10px #60a5facc}@media (max-height:700px) and (min-width:769px){.sokoban-shell{padding:.45rem 1rem}.sokoban-header,.sokoban-stats-bar{margin-bottom:.45rem;padding-block:.4rem}.sokoban-viewport{min-height:0;padding:.65rem}.sokoban-controls{margin-top:.45rem}.dpad-btn{width:42px;height:42px}}.sokoban-controls{flex-direction:column;align-items:center;gap:.5rem;margin-top:1rem;display:flex}.dpad-row{gap:.5rem;display:flex}.dpad-btn{color:#fff;cursor:pointer;background:#ffffff14;border:1px solid #fff3;border-radius:10px;justify-content:center;align-items:center;width:50px;height:50px;font-size:1.25rem;font-weight:800;transition:all .15s;display:flex}.dpad-btn:active{background:#f59e0b66;transform:scale(.92)}