:root{--primary: #7C3AED;--primary-hover: #6D28D9;--danger: #EF4444;--danger-hover: #DC2626;--success: #22C55E;--bg: #F3F4F6;--surface: #FFFFFF;--border: #E5E7EB;--text: #111827;--muted: #6B7280;--sidebar-bg: #1E1B4B;--sidebar-text: #C4B5FD;--sidebar-active: #7C3AED;--radius: 10px;--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}button{font-family:inherit;cursor:pointer;border:none;font-size:14px;font-weight:600;border-radius:8px;padding:8px 16px;transition:background .15s,opacity .15s}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font-family:inherit;font-size:14px;border:1px solid var(--border);border-radius:8px;padding:8px 12px;width:100%;background:var(--surface);color:var(--text);outline:none;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #7c3aed26}textarea{resize:vertical;min-height:80px}label{display:block;font-weight:600;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}.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:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--border);color:var(--text)}.btn-success{background:var(--success);color:#fff}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}