:root{--bg: #ffffff;--bg-sidebar: #fbfbfb;--bg-hover: rgba(0, 0, 0, .04);--bg-active: rgba(0, 0, 0, .062);--bg-canvas: #f5f5f6;--text: #18181b;--text-muted: #6e6e76;--text-faint: #a0a0a8;--border: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .14);--accent: #2563eb;--accent-soft: rgba(37, 99, 235, .1);--accent-text: #ffffff;--primary: #18181b;--danger: #dc2626;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 2px 8px rgba(0, 0, 0, .07), 0 1px 2px rgba(0, 0, 0, .05);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .12);--ring: 0 0 0 3px rgba(37, 99, 235, .25);--radius: 7px;--font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji";color-scheme:light}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14.5px;line-height:1.5;-webkit-tap-highlight-color:transparent;overscroll-behavior:none;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{font-weight:650;letter-spacing:-.015em;margin:0;line-height:1.2}button{font:inherit;color:var(--text);cursor:pointer;border:1px solid transparent;background:transparent;border-radius:var(--radius);padding:7px 12px;font-weight:500;transition:background .1s ease,border-color .1s ease,box-shadow .1s ease,opacity .1s ease;display:inline-flex;align-items:center;gap:7px}button:hover{background:var(--bg-hover)}button.primary{background:var(--primary);color:var(--accent-text);font-weight:550}button.primary:hover{background:#000}button.outline{border-color:var(--border-strong);background:var(--bg)}button.outline:hover{background:var(--bg-hover)}button.danger{color:var(--danger)}button.danger:hover{background:#dc262614}button:disabled{opacity:.4;cursor:not-allowed}input,select,textarea{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius);padding:9px 11px;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:var(--ring)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.row{display:flex;gap:8px;align-items:center}.muted{color:var(--text-muted)}.small{font-size:13px}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-thumb{background:#00000029;border:3px solid transparent;background-clip:padding-box;border-radius:8px}::-webkit-scrollbar-thumb:hover{background:#00000042;background-clip:padding-box}