.verificar-certificado {
            background: linear-gradient(135deg, #6239B3 0%, #764ba2 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .verificar-certificado::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: 100px 100px;
            opacity: 0.3;
        }

        .verificar-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        .verificar-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .verificar-title h2 {
            color: #ffffff;
            font-size: 2.5em;
            font-weight: 700;
            margin-bottom: 15px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .verificar-title p {
            color: rgba(255,255,255,0.9);
            font-size: 1.1em;
        }

        .verificar-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            transform: translateY(0);
            transition: transform 0.3s ease;
        }

        .verificar-card:hover {
            transform: translateY(-5px);
        }

        .form-group {
            margin-bottom: 30px;
        }

        .form-group label {
            display: block;
            color: #333;
            font-weight: 600;
            margin-bottom: 10px;
            font-size: 1.1em;
        }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: #667eea;
            font-size: 1.2em;
        }

        .form-control {
            width: 100%;
            padding: 18px 20px 18px 55px;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            font-size: 1.1em;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .form-control:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
        }

        .btn-verificar {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #ffffff;
            border: none;
            border-radius: 12px;
            font-size: 1.2em;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn-verificar:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }

        .btn-verificar:active {
            transform: translateY(0);
        }

        .resultado-verificacion {
            margin-top: 30px;
            padding: 25px;
            border-radius: 12px;
            display: none;
            animation: slideIn 0.5s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .resultado-exito {
            background: #d4edda;
            border: 2px solid #28a745;
            color: #155724;
        }

        .resultado-error {
            background: #f8d7da;
            border: 2px solid #dc3545;
            color: #721c24;
        }

        .resultado-loading {
            background: #fff3cd;
            border: 2px solid #ffc107;
            color: #856404;
        }

        .certificado-info {
            margin-top: 20px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 10px;
        }

        .certificado-info h4 {
            color: #667eea;
            margin-bottom: 15px;
            font-size: 1.3em;
        }

        .certificado-info p {
            margin: 8px 0;
            font-size: 1em;
        }

        .certificado-info strong {
            color: #333;
        }

        .btn-descargar {
            margin-top: 20px;
            padding: 12px 30px;
            background: #28a745;
            color: #ffffff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-descargar:hover {
            background: #218838;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
        }

        .loader {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #667eea;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 0 auto;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @media (max-width: 768px) {
            .verificar-card {
                padding: 30px 20px;
            }

            .verificar-title h2 {
                font-size: 1.8em;
            }

            .form-control {
                padding: 15px 15px 15px 50px;
            }
        }