:root{--start:#22c55e;--end:#ef4444}.pathfinding-page{height:100vh;display:flex}.grid-container{flex:1;justify-content:center;align-items:center;display:flex}.grid{background:var(--cell-border);grid-template-rows:repeat(35,2fr);grid-template-columns:repeat(35,2fr);gap:1px;width:max-content;display:grid}.cell{background:var(--bg);border:1px solid var(--border);box-sizing:border-box;width:18px;height:18px}.cell.wall{background:var(--text)}.cell.start{background:var(--start)}.cell.end{background:var(--end)}.cell.path{background:#2476b5}.cell:hover{filter:brightness(1.2)}.panel{background:var(--bg);border-left:1px solid var(--border);flex-direction:column;gap:12px;width:320px;padding:20px;display:flex}.panel button{border:1px solid var(--border);background:var(--bg);color:var(--text);cursor:pointer;border-radius:10px;padding:10px 12px;font-size:14px;font-weight:500;transition:all .2s}.panel button:hover{border-color:var(--link);transform:translateY(-1px);box-shadow:0 6px 18px #00000014}.panel button.active{background:var(--link);color:#fff;border-color:var(--link);box-shadow:0 6px 18px #2563eb40}.panel button.primary{background:var(--link);color:#fff;border:none;font-weight:600}.panel button.primary:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 8px 22px #2563eb4d}.panel button:disabled,.panel select:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;filter:grayscale(40%);transform:none}.algo-select{text-align:center;text-align-last:center;background:var(--bg);width:100%;color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:10px;outline:none;padding:10px 12px;font-size:14px;transition:all .2s}.algo-select:hover{border-color:var(--link)}.algo-select:focus{border-color:var(--link);box-shadow:0 0 0 2px #2563eb33}.algo-select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 18px) calc(50% - 3px),calc(100% - 12px) calc(50% - 3px);background-repeat:no-repeat;background-size:6px 6px}:root{--bg:#fff;--text:#111;--muted:#555;--border:#eaeaea;--link:#2563eb}[data-theme=dark]{--bg:#0f172a;--text:#bbbfd1;--muted:#9ca3af;--border:#1f2937;--link:#60a5fa}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6;transition:background .2s,color .2s}h2{border-bottom:1px solid var(--border);color:var(--text)}p{color:var(--muted)}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}.page{justify-content:center;padding:60px 20px;display:flex}.container{width:100%;max-width:850px}.navbar{border-bottom:1px solid var(--border);padding:16px 0}.navbar-container{justify-content:space-between;align-items:center;max-width:1000px;margin:0 auto;padding:0 20px;display:flex}.logo{color:var(--text);font-weight:700;text-decoration:none}.navbar-links{align-items:center;gap:20px;display:flex}.navbar-links a{color:var(--text);text-decoration:none;transition:color .2s}.navbar-links a:hover{color:var(--link)}.theme-button{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:8px;padding:6px 10px;font-size:16px;line-height:1;transition:all .35s}.theme-button:hover{background:#7f7f7f14;transform:translateY(-1px)}[data-theme=dark] .theme-button{box-shadow:0 0 0 1px #ffffff14}[data-theme=light] .theme-button{box-shadow:0 0 0 1px #0000000d}.fade-in{animation:.4s ease-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}a{transition:color .2s}button{transition:all .2s}::-webkit-scrollbar{width:0;height:0}*{scrollbar-width:none}body{-ms-overflow-style:none}