:root{--bg: #0f1117;--panel: #171a23;--panel-2: #1f2330;--border: #2a2f3d;--text: #e6e8ee;--muted: #9aa2b4;--accent: #6366f1;--accent-2: #8b5cf6;--danger: #ef4444;--canvas-bg: #ffffff;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}.home{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;background:radial-gradient(1200px 600px at 50% -10%,#232744 0%,var(--bg) 60%);padding:24px}.home-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:28px;box-shadow:0 30px 80px #00000073}.brand{display:flex;align-items:center;gap:14px;margin-bottom:22px}.brand-mark{font-size:34px;color:var(--accent-2);filter:drop-shadow(0 0 12px rgba(139,92,246,.6))}.brand h1{margin:0;font-size:22px;letter-spacing:.2px}.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}.tabs{display:flex;gap:6px;background:var(--panel-2);padding:4px;border-radius:12px;margin-bottom:20px}.tabs button{flex:1;padding:9px;border:none;border-radius:9px;background:transparent;color:var(--muted);font-weight:600;font-size:13px;transition:.15s}.tabs button.active{background:var(--accent);color:#fff}.home-form{display:flex;flex-direction:column;gap:14px}.home-form label{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:600;color:var(--muted)}.home-form input{padding:11px 12px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-size:14px;outline:none;transition:border .15s}.home-form input:focus{border-color:var(--accent)}.code-input{letter-spacing:4px;text-transform:uppercase;font-weight:700}.primary{margin-top:6px;padding:12px;border:none;border-radius:11px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:700;font-size:14px}.primary:disabled{opacity:.6;cursor:default}.error{margin:14px 0 0;color:var(--danger);font-size:13px;text-align:center}.home-footer{color:var(--muted);font-size:12px}.board{display:flex;height:100%;overflow:hidden}.board-main{flex:1;display:flex;flex-direction:column;min-width:0}.board-header{height:52px;flex:0 0 52px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--border)}.board-title{display:flex;align-items:center;gap:10px;font-size:14px}.board-title .dot{width:9px;height:9px;border-radius:50%;background:#22c55e;box-shadow:0 0 8px #22c55e}.code-chip{border:1px solid var(--border);background:var(--panel-2);color:var(--muted);padding:4px 10px;border-radius:8px;font-size:12px;font-weight:700;letter-spacing:1.5px}.code-chip:hover{color:var(--text);border-color:var(--accent)}.board-users{display:flex;align-items:center;gap:6px}.avatar{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:12px;font-weight:700;border:2px solid var(--panel)}.leave-btn{margin-left:8px;padding:6px 12px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:12px;font-weight:600}.leave-btn:hover{color:var(--text);border-color:var(--danger)}.canvas-wrap{position:relative;flex:1;overflow:hidden;background:var(--canvas-bg);background-image:linear-gradient(rgba(0,0,0,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.04) 1px,transparent 1px);background-size:24px 24px;touch-action:none}.board-canvas{position:absolute;top:0;right:0;bottom:0;left:0;display:block}.cursor-draw{cursor:crosshair}.cursor-select{cursor:default}.cursor-eraser{cursor:cell}.remote-cursor{position:absolute;top:0;left:0;pointer-events:none;will-change:transform;z-index:5}.cursor-label{position:absolute;left:16px;top:14px;padding:2px 7px;border-radius:6px;color:#fff;font-size:11px;font-weight:600;white-space:nowrap;box-shadow:0 2px 6px #00000040}.toolbar{width:76px;flex:0 0 76px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:10px;padding:12px 8px;overflow-y:auto}.toolbar-group{display:flex;flex-direction:column;align-items:center;gap:6px;width:100%}.toolbar-label{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}.toolbar-divider{width:70%;height:1px;background:var(--border);margin:4px 0}.toolbar-spacer{flex:1}.tool-btn{width:48px;height:48px;border-radius:12px;border:1px solid transparent;background:var(--panel-2);display:grid;place-items:center;transition:.12s}.tool-btn:hover{border-color:var(--border)}.tool-btn.active{background:linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 4px 14px #6366f173}.tool-icon{font-size:20px;line-height:1}.swatches{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.swatch{width:24px;height:24px;border-radius:7px;border:2px solid transparent;padding:0}.swatch.active{border-color:#fff;box-shadow:0 0 0 2px var(--accent)}.custom-color{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:9px;color:var(--muted);cursor:pointer}.custom-color input[type=color]{width:40px;height:24px;border:1px solid var(--border);border-radius:6px;background:none;padding:0;cursor:pointer}.sizes{display:flex;flex-direction:column;gap:5px;align-items:center}.size-btn{width:48px;height:34px;border-radius:9px;border:1px solid transparent;background:var(--panel-2);display:grid;place-items:center}.size-btn.active{border-color:var(--accent)}.size-dot{background:var(--text);border-radius:50%;display:block;max-width:28px;max-height:28px}.action-btn{width:100%;padding:8px 4px;border-radius:9px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-size:11px;font-weight:600}.action-btn:disabled{opacity:.4;cursor:default}.action-btn.danger{border-color:transparent;color:#fca5a5}.action-btn.danger:hover{background:#ef44441f}