:root{--bg-base: #0b0d10;--bg-elevated: #12151a;--bg-surface: #181c22;--bg-hover: #1f242c;--border: #2a3038;--border-light: #353b45;--text: #e8eaed;--text-muted: #9aa0a6;--text-subtle: #6b7280;--primary: #6ea8fe;--primary-hover: #8ab4f8;--success: #6dd4a8;--success-bg: rgba(109, 212, 168, .12);--warning: #fbbf24;--warning-bg: rgba(251, 191, 36, .12);--danger: #f87171;--danger-bg: rgba(248, 113, 113, .12);--info: #60a5fa;--info-bg: rgba(96, 165, 250, .12);--sidebar-w: 240px;--header-h: 56px;--radius: 10px;--radius-lg: 14px;--shadow: 0 4px 24px rgba(0, 0, 0, .35)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg-base);color:var(--text);line-height:1.5}input,select,textarea,button{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}a{color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s}.btn.primary{background:var(--primary);color:#0b0d10}.btn.primary:hover:not(:disabled){background:var(--primary-hover)}.btn.secondary{background:var(--bg-hover);color:var(--text);border:1px solid var(--border)}.btn.secondary:hover:not(:disabled){border-color:var(--border-light)}.btn.danger{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(248,113,113,.25)}.btn.danger:hover:not(:disabled){background:#f8717133}.panel{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.panel+.panel{margin-top:16px}.panel-title{margin:0 0 16px;font-size:16px;font-weight:600}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-muted)}.field input,.field select,.field textarea{background:var(--bg-base);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:9px 12px}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary)}.field-hint{font-size:12px;color:var(--text-subtle);line-height:1.5}.field-row{flex-direction:row;align-items:center;gap:8px}