:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-light: #dbeafe;--secondary: #64748b;--success: #16a34a;--danger: #dc2626;--warning: #f59e0b;--bg: #f1f5f9;--bg-white: #ffffff;--text: #1e293b;--text-light: #64748b;--border: #e2e8f0;--shadow: 0 1px 3px rgba(0,0,0,.1);--shadow-lg: 0 10px 25px rgba(0,0,0,.1);--radius: 8px;--radius-lg: 16px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}#app{min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:var(--radius);padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s;font-family:inherit}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-secondary{background:var(--secondary);color:#fff}.btn-secondary:hover{background:#475569}.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-sm{padding:6px 12px;font-size:12px}input,textarea,select{width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:14px;font-family:inherit;transition:border-color .2s;outline:none;background:#fff}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.card{background:var(--bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:24px}.badge{display:inline-block;padding:2px 10px;border-radius:100px;font-size:12px;font-weight:600}.badge-primary{background:var(--primary-light);color:var(--primary)}.badge-success{background:#dcfce7;color:var(--success)}.badge-warning{background:#fef3c7;color:#b45309}