:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--bg-base: #0a0d14;--bg-sidebar: #0f1523;--bg-surface: #141c2e;--bg-surface-hover: #1b263e;--bg-card-inner: #0a0e18;--border-subtle: #232f48;--border-focus: #3b82f6;--text-main: #f1f5f9;--text-muted: #94a3b8;--text-dim: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--accent-cyan: #06b6d4;--accent-green: #10b981;--accent-amber: #f59e0b;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px -2px rgba(0, 0, 0, .4);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);color:var(--text-main);background:var(--bg-base);-webkit-font-smoothing:antialiased}a{color:#38bdf8;text-decoration:none;transition:color .15s ease}a:hover{color:#7dd3fc}button,input,textarea,select{font:inherit;background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:.5rem .75rem;transition:all .15s ease;outline:none}input:focus,textarea:focus,select:focus{border-color:var(--border-focus);box-shadow:0 0 0 2px #3b82f640}button{cursor:pointer;font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:.4rem}button:hover:not(:disabled){background:var(--bg-surface-hover);border-color:#3b82f6}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;border:1px solid #3b82f6;box-shadow:0 2px 4px #2563eb33}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 4px 8px #2563eb59}.layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}nav{background:var(--bg-sidebar);padding:1.25rem 1rem;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:.5rem}.brand-title{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;color:#fff;display:flex;align-items:center;gap:.5rem;margin-bottom:.25rem}.nav-item{width:100%;text-align:left;padding:.55rem .75rem;border-radius:var(--radius-sm);background:transparent;border:1px solid transparent;color:var(--text-muted);font-size:.9rem}.nav-item:hover{background:#ffffff0a;color:var(--text-main);border-color:transparent}.nav-item.active{background:#3b82f61f;color:#60a5fa;border-color:#3b82f64d;font-weight:600}main{padding:1.5rem 2rem;max-width:1400px;width:100%}.card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:1.25rem 1.5rem;margin-bottom:1.25rem;box-shadow:var(--shadow-sm)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em}h2{font-size:1.25rem;color:#fff}h3{font-size:1.05rem;color:#f8fafc}table{width:100%;border-collapse:separate;border-spacing:0;font-size:.88rem}th{background:#0a0e1899;color:var(--text-muted);font-weight:600;text-transform:uppercase;font-size:.75rem;letter-spacing:.05em;padding:.65rem .75rem;border-bottom:1px solid var(--border-subtle)}td{padding:.75rem;border-bottom:1px solid rgba(35,47,72,.5);vertical-align:middle}tr:hover td{background:#ffffff05}.msg{white-space:pre-wrap;margin:.5rem 0;padding:.75rem 1rem;border-radius:var(--radius-md);line-height:1.5;font-size:.92rem}.msg.user{background:#1e293b;border:1px solid #334155;margin-left:2rem}.msg.assistant{background:#0f172a;border:1px solid #1e293b;margin-right:2rem}.row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}.col{display:flex;flex-direction:column;gap:.4rem}.muted{color:var(--text-muted);font-size:.85rem;line-height:1.4}.error{color:#f87171;font-weight:500}.badge{display:inline-flex;align-items:center;padding:.25rem .6rem;border-radius:9999px;font-size:.75rem;font-weight:500;background:#ffffff0f;color:var(--text-muted);border:1px solid transparent}.badge.active{background:#10b98126;color:#34d399;border-color:#10b9814d}.badge.info{background:#3b82f626;color:#60a5fa;border-color:#3b82f64d}.chat-window{display:flex;flex-direction:column;gap:.75rem;max-height:480px;min-height:320px;overflow-y:auto;padding:1rem;border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:var(--bg-card-inner);margin-bottom:.85rem}.preset-chip{background:#ffffff0a;border:1px solid var(--border-subtle);border-radius:20px;padding:.35rem .75rem;font-size:.8rem;color:#cbd5e1;transition:all .15s ease}.preset-chip:hover:not(:disabled){background:#3b82f626;border-color:#3b82f6;color:#93c5fd;transform:translateY(-1px)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}@media (max-width: 900px){.layout,.grid-2{grid-template-columns:1fr}}