:root{--primary: #6366f1;--primary-dk: #4f46e5;--primary-bg: #eef2ff;--bg: #f1f5f9;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--danger: #ef4444;--danger-bg: #fef2f2;--danger-border: #fecaca;--success: #16a34a;--success-bg: #f0fdf4;--success-border: #bbf7d0;--r: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;color:var(--text);background:var(--bg);min-height:100vh}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r);font-size:13px;font-weight:500;cursor:pointer;border:none;transition:background .12s,opacity .12s;white-space:nowrap;font-family:inherit}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dk)}.btn-outline{background:none;border:1px solid var(--border);color:var(--text)}.btn-outline:hover:not(:disabled){background:var(--bg);border-color:#a5b4fc}.btn-sm{padding:5px 10px;font-size:12px}