:root {
            --violeta-oscuro: #6536ec;
            --violeta-claro: #7c4dff;;
            --blanco: #FFFFFF;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, -apple-system, sans-serif; }
        body { background-color: #f8fafc; color: #1e293b; min-height: 100vh; display: flex; flex-direction: column; }
        
        .navbar { background: var(--blanco); border-bottom: 2px solid #f1f5f9; padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 1.5rem; font-weight: 800; color: var(--violeta-oscuro); text-decoration: none; }
        .nav-links { display: flex; gap: 1rem; align-items: center; }
        .nav-link { text-decoration: none; color: #475569; font-weight: 600; font-size: 0.95rem; }
        .nav-link:hover { color: var(--violeta-claro); }

        .main-wrapper { flex: 1; display: flex; align-items: center; justify-content: center; padding: 2.5rem 1rem; }
        .auth-card { background: var(--blanco); border: 1px solid #e2e8f0; border-radius: 12px; padding: 2.5rem; width: 100%; max-width: 480px; box-shadow: 0 4px 12px rgba(75, 29, 107, 0.08); }
        .auth-header { text-align: center; margin-bottom: 2rem; }
        .auth-header h1 { font-size: 1.8rem; font-weight: 800; color: var(--violeta-oscuro); margin-bottom: 0.5rem; }
        .auth-header p { color: #64748b; font-size: 0.95rem; }

        .form-grid { display: grid; gap: 1.2rem; }
        .form-group { display: flex; flex-direction: column; gap: 0.4rem; }
        .form-group label { font-size: 0.875rem; font-weight: 600; color: black; }
        .form-control { width: 100%; padding: 0.75rem 1rem; border: 1px solid #cbd5e1; border-radius: 8px; font-size: 0.95rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
        .form-control:focus { border-color: var(--violeta-claro); box-shadow: 0 0 0 3px rgba(155, 89, 208, 0.2); }
        
        .btn-primary { background: var(--violeta-oscuro); color: var(--blanco); border: none; padding: 0.85rem; border-radius: 8px; font-weight: 700; font-size: 1rem; cursor: pointer; transition: background-color 0.2s; width: 100%; margin-top: 0.5rem; }
        .btn-primary:hover { background: var(--violeta-claro); }

        .error-box { background: #fef2f2; border: 1px solid #fecaca; border-left: 4px solid #ef4444; color: #991b1b; padding: 1rem; border-radius: 8px; margin-bottom: 1.5rem; font-size: 0.9rem; }
        .error-box ul { margin: 0; padding-left: 1.2rem; }

        .auth-footer { text-align: center; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid #f1f5f9; font-size: 0.9rem; color: #64748b; }
        .auth-footer a { color: var(--violeta-claro); text-decoration: none; font-weight: 600; }