:root{color-scheme:light;--bg: #f6f7f9;--surface: #ffffff;--surface-muted: #f3f4f6;--border: #e5e7eb;--border-strong: #d1d5db;--text: #111827;--text-muted: #6b7280;--text-faint: #9ca3af;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef2ff;--success: #16a34a;--success-bg: #f0fdf4;--success-text: #166534;--warning: #d97706;--warning-bg: #fffbeb;--warning-text: #92400e;--danger: #dc2626;--danger-hover: #b91c1c;--danger-bg: #fef2f2;--danger-text: #991b1b;--info: #0891b2;--info-bg: #ecfeff;--info-text: #155e75;--sidebar-bg: #0f172a;--sidebar-border: #1e293b;--sidebar-text: #94a3b8;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);--shadow: 0 4px 12px rgba(16, 24, 40, .1);--radius: 8px;--radius-sm: 6px;--font-mono: ui-monospace, "Cascadia Code", "Fira Code", Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.5;color:var(--text);background-color:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1{font-size:1.45rem;font-weight:600;letter-spacing:-.015em}h2{font-size:1.15rem;font-weight:600;letter-spacing:-.01em}h3{font-size:1rem;font-weight:600}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}code,pre{font-family:var(--font-mono)}code{background:var(--surface-muted);padding:1px 5px;border-radius:4px;font-size:.85em}th{text-align:left}button{font-family:inherit;font-size:inherit}button:not(:disabled){cursor:pointer}button:hover:not(:disabled){filter:brightness(.94)}button:disabled{opacity:.55}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}input:focus,select:focus,textarea:focus{border-color:var(--primary)!important;box-shadow:0 0 0 3px var(--primary-soft)!important;outline:none!important}::selection{background:var(--primary-soft)}html{scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:8px;border:2px solid transparent;background-clip:padding-box}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);padding:9px 16px;font-size:.9rem;font-weight:600;line-height:1.2;transition:background-color .15s ease,border-color .15s ease,color .15s ease}.btn:disabled{opacity:.55}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border-strong)}.btn-ghost:hover:not(:disabled){background:var(--surface-muted)}.btn-ghost-danger{background:transparent;color:var(--danger)}.btn-ghost-danger:hover:not(:disabled){background:var(--danger-bg)}.input{width:100%;padding:10px 12px;font-size:.95rem;color:var(--text);background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);transition:border-color .15s ease,box-shadow .15s ease}.input::placeholder{color:var(--text-faint)}.nav-link{display:block;padding:8px 12px;border-radius:var(--radius-sm);color:var(--sidebar-text);font-size:.9rem;font-weight:500;text-decoration:none;transition:background-color .15s ease,color .15s ease}.nav-link:hover{background:#94a3b81a;color:#f1f5f9;text-decoration:none}.nav-link.active{background:var(--primary);color:#fff;font-weight:600}.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}