:root {
            --primary-color: #6EAD3B;
            --secondary-color: #4a7c2a;
            --dark-color: #343a40;
            --light-color: #f8f9fa;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
            min-height: 100vh;
        }
        
        .navbar {
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            background-color: var(--dark-color) !important;
        }
        
        .navbar-brand img {
            transition: transform 0.3s ease;
        }
        
        .navbar-brand img:hover {
            transform: scale(1.05);
        }
        
        .nav-link {
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .nav-link:hover {
            color: var(--primary-color) !important;
        }
        
        #sessionWarning {
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            z-index: 1000;
            text-align: center;
            padding: 10px;
            background-color: #ffc107;
            color: #000;
            font-weight: bold;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        
        .card-form {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            margin-top: 20px;
        }
        
        .card-header {
            background-color: var(--primary-color);
            color: white;
            padding: 1.2rem;
        }
        
        .form-section {
            background-color: var(--secondary-color);
            color: white;
            padding: 10px;
            border-radius: 5px;
            margin-bottom: 20px;
        }
        
        .form-control {
            border-radius: 8px;
            padding: 12px 15px;
            border: 1px solid #e0e0e0;
            transition: all 0.3s;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(110, 173, 59, 0.25);
        }
        
        .btn-submit {
            background-color: var(--primary-color);
            border: none;
            border-radius: 8px;
            padding: 15px;
            font-weight: 600;
            letter-spacing: 1px;
            transition: all 0.3s;
            height: auto;
        }
        
        .btn-submit:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .btn-submit i {
            font-size: 2rem;
            margin-bottom: 5px;
        }
        
        .select-dropdown, .select-nombre-dropdown {
            position: absolute;
            z-index: 1;
            width: 100%;
            max-height: 200px;
            overflow-y: auto;
            border: 1px solid #ccc;
            border-top: none;
            border-radius: 0 0 8px 8px;
            display: none;
            background-color: white;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .selected {
            background-color: var(--primary-color);
            color: white;
        }
        
        .modal-wait {
            background-color: rgba(255, 255, 255, 0.85) !important;
        }
        
        .fa-cog {
            animation: spin 2s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 1.5rem 0;
            margin-top: 2rem;
        }
        
        .footer-logo {
            max-height: 60px;
            filter: brightness(0) invert(1);
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.3s ease;
            text-decoration: none;
        }
        
        .footer-links a:hover {
            color: white;
            text-decoration: none;
        }
        
        .social-icons a {
            color: white;
            font-size: 1.2rem;
            margin: 0 10px;
            transition: all 0.3s ease;
        }
        
        .social-icons a:hover {
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }