:root {
     --primary: #2d4f95;
     --primary-dark: rgb(10, 57, 129);
     --secondary: #d01341;
     --light: #f8f9fa;
     --dark: #202124;
     --gray: #5f6368;
     --light-gray: #dadce0;
     --shadow: 0 4px 12px rgba(2, 33, 75, 0.9);
     --transition: all 0.3s ease;
     --border-radius: 12px;
 }

 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family: 'Inter', sans-serif;
 }

 /* Hero Section */
 .hero {
     padding: 10rem 0;
     text-align: center;
     background: linear-gradient(135deg, var(--primary), var(--primary-dark));
     margin-bottom: 3rem;
     box-shadow: var(--shadow);
     position: relative;
     overflow: hidden;
 }

 .hero: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 1000 100" fill="%23ffffff" opacity="0.05"><polygon points="1000,0 1000,100 0,100"></polygon></svg>');
     background-size: cover;
 }

 .hero h1 {
     font-size: 3rem;
     margin-bottom: 1.5rem;
     color: white;
     font-weight: 700;
     position: relative;
 }

 .hero p {
     font-size: 1.3rem;
     max-width: 800px;
     margin: 0 auto;
     color: rgba(255, 255, 255, 0.9);
     font-weight: 300;
     position: relative;
 }

 /* Section Title */
 .section-title {
     text-align: center;
     margin-bottom: 3rem;
     position: relative;
 }

 .section-title h2 {
     font-size: 2.5rem;
     color: var(--primary-dark);
     display: inline-block;
     font-weight: 600;
 }

 .section-title h2:after {
     content: '';
     display: block;
     width: 80px;
     height: 4px;
     background-color: var(--secondary);
     margin: 10px auto;
     border-radius: 2px;
 }

 /* Techniques Grid */
 .techniques-grid {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
     gap: 2rem;
     margin-bottom: 4rem;
 }

 .technique-card {
     background-color: white;
     border-radius: var(--border-radius);
     overflow: hidden;
     box-shadow: var(--shadow);
     transition: var(--transition);
     display: flex;
     flex-direction: column;
     height: 100%;
 }

 .technique-card:hover {
     transform: translateY(-10px);
     box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
 }

 .card-header {
     padding: 1.5rem;
     background: linear-gradient(135deg, var(--primary), var(--primary-dark));
     color: white;
 }

 .card-header h3 {
     font-size: 1.5rem;
     margin-bottom: 0.5rem;
     font-weight: 600;
 }

 .card-body {
     padding: 1.5rem;
     flex-grow: 1;
 }

 .card-body p {
     margin-bottom: 1rem;
     color: var(--gray);
     font-size: 1rem;
     line-height: 1.7;
 }

 .card-footer {
     padding: 1rem 1.5rem;
     background-color: var(--light);
     border-top: 1px solid var(--light-gray);
     display: flex;
     justify-content: space-between;
     align-items: center;
 }

 .btn {
     display: inline-block;
     padding: 10px 20px;
     background-color: var(--primary);
     color: white;
     text-decoration: none;
     border-radius: 6px;
     font-weight: 500;
     transition: var(--transition);
     border: none;
     cursor: pointer;
     font-size: 0.9rem;
 }

 .btn:hover {
     background-color: var(--primary-dark);
     transform: translateY(-2px);
 }

 /* Comparison Section */
 .comparison-section {
     background-color: white;
     padding: 3rem 0;
     border-radius: var(--border-radius);
     box-shadow: var(--shadow);
     margin-bottom: 4rem;
 }

 .comparison-table {
     width: 100%;
     border-collapse: collapse;
     margin-top: 2rem;
     font-size: 0.95rem;
 }

 .comparison-table th,
 .comparison-table td {
     padding: 1.2rem;
     text-align: left;
     border-bottom: 1px solid var(--light-gray);
 }

 .comparison-table th {
     background-color: var(--light);
     font-weight: 600;
     color: var(--primary-dark);
     position: sticky;
     top: 0;
 }

 .comparison-table tr:hover {
     background-color: rgba(45, 79, 149, 0.05);
 }

 .indicator {
     display: inline-block;
     width: 12px;
     height: 12px;
     border-radius: 50%;
     margin-right: 8px;
 }

 .indicator-high {
     background-color: var(--secondary);
 }

 .indicator-medium {
     background-color: #fbbc05;
 }

 .indicator-low {
     background-color: #ea4335;
 }

 /* FAQ Section */
 .faq-section {
     margin-bottom: 4rem;
 }

 .faq-item {
     margin-bottom: 1.5rem;
     border-radius: var(--border-radius);
     overflow: hidden;
     box-shadow: var(--shadow);
     transition: var(--transition);
 }

 .faq-item:hover {
     box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
 }

 .faq-question {
     padding: 1.5rem;
     background-color: white;
     font-weight: 600;
     cursor: pointer;
     display: flex;
     justify-content: space-between;
     align-items: center;
     font-size: 1.1rem;
 }

 .faq-answer {
     padding: 0 1.5rem;
     max-height: 0;
     overflow: hidden;
     transition: var(--transition);
     background-color: white;
 }

 .faq-answer.active {
     padding: 1.5rem;
     max-height: 500px;
 }

 .faq-toggle {
     font-size: 1.2rem;
     transition: var(--transition);
 }

 .faq-item.active .faq-toggle {
     transform: rotate(180deg);
 }

 /* Sociedades Section */
 .sociedades-section {
     background-color: white;
     padding: 4rem 0;
     margin-bottom: 4rem;
 }

 .sociedades-header {
     text-align: center;
     margin-bottom: 3rem;
 }

 .sociedades-subtitle {
     color: var(--secondary);
     font-weight: 500;
     margin-bottom: 0.5rem;
     text-transform: uppercase;
     letter-spacing: 1px;
 }

 .sociedades-title {
     font-size: 2.2rem;
     color: var(--primary-dark);
     font-weight: 600;
 }

 .sociedades-carousel {
     overflow: hidden;
     position: relative;
 }

 .carousel-track {
     display: flex;
     animation: scroll 30s linear infinite;
 }

 .soc-logo {
     flex: 0 0 auto;
     width: 180px;
     margin: 0 20px;
     display: flex;
     align-items: center;
     justify-content: center;
 }

 .soc-logo img {
     max-width: 100%;
     height: auto;
     filter: grayscale(100%);
     transition: var(--transition);
 }

 .soc-logo:hover img {
     filter: grayscale(0%);
 }

 @keyframes scroll {
     0% {
         transform: translateX(0);
     }

     100% {
         transform: translateX(calc(-180px * 7));
     }
 }

 /* WhatsApp Button */
 .whatsapp-container {
     position: fixed;
     bottom: 30px;
     right: 30px;
     z-index: 100;
 }

 .whatsapp-btn {
     display: flex;
     align-items: center;
     gap: 10px;
     background-color: #25D366;
     color: white;
     padding: 12px 20px;
     border-radius: 50px;
     text-decoration: none;
     font-weight: 500;
     box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
     transition: var(--transition);
 }

 .whatsapp-btn:hover {
     transform: translateY(-3px);
     box-shadow: 0 6px 15px rgba(37, 211, 102, 0.5);
 }

 /* Footer */
 .footer {
     background-color: var(--dark);
     color: white;
     padding: 3rem 0 1rem;
 }

 .footer-container {
     display: grid;
     grid-template-columns: 2fr 1fr 1fr 1.5fr;
     gap: 2.5rem;
     margin-bottom: 2rem;
 }

 .footer-about .footer-logo img {
     max-width: 150px;
     margin-bottom: 1rem;
 }

 .footer-description {
     color: var(--light-gray);
     margin-bottom: 1.5rem;
     line-height: 1.7;
 }

 .footer-terms {
     color: var(--secondary);
     text-decoration: none;
     margin-bottom: 1.5rem;
     display: inline-block;
     font-weight: 500;
 }

 .footer-socials {
     display: flex;
     gap: 15px;
 }

 .footer-socials a {
     color: white;
     font-size: 1.2rem;
     transition: var(--transition);
 }

 .footer-socials a:hover {
     color: var(--secondary);
     transform: translateY(-3px);
 }

 .footer-links h4,
 .footer-contact h4 {
     margin-bottom: 1.5rem;
     font-size: 1.2rem;
     color: white;
 }

 .footer-links ul {
     list-style: none;
 }

 .footer-links li {
     margin-bottom: 0.8rem;
 }

 .footer-links a {
     color: var(--light-gray);
     text-decoration: none;
     transition: var(--transition);
 }

 .footer-links a:hover {
     color: var(--secondary);
     padding-left: 5px;
 }

 .footer-contact p {
     margin-bottom: 1rem;
     color: var(--light-gray);
     display: flex;
     align-items: flex-start;
     gap: 10px;
 }

 .footer-contact i {
     color: var(--secondary);
     margin-top: 3px;
 }

 .footer-bottom {
     padding-top: 2rem;
     border-top: 1px solid rgba(255, 255, 255, 0.1);
     text-align: center;
     color: var(--light-gray);
 }

 /* Responsive Design */
 @media (max-width: 1024px) {
     .footer-container {
         grid-template-columns: 1fr 1fr;
         gap: 2rem;
     }

     .hero h1 {
         font-size: 2.5rem;
     }
 }

 @media (max-width: 768px) {
     .header-container {
         flex-wrap: wrap;
     }

     .nav-links {
         display: none;
         width: 100%;
         flex-direction: column;
         gap: 1rem;
         margin-top: 1rem;
     }

     .nav-links.active {
         display: flex;
     }

     .menu-toggle {
         display: flex;
     }

     .hero {
         padding: 5rem 0;
     }

     .hero h1 {
         font-size: 2rem;
     }

     .hero p {
         font-size: 1.1rem;
     }

     .section-title h2 {
         font-size: 2rem;
     }

     .techniques-grid {
         grid-template-columns: 1fr;
     }

     .comparison-table {
         display: block;
         overflow-x: auto;
     }

     .footer-container {
         grid-template-columns: 1fr;
     }

     .card-footer {
         flex-direction: column;
         gap: 1rem;
         align-items: flex-start;
     }

     .whatsapp-btn {
         padding: 10px 15px;
         font-size: 0.9rem;
     }
 }

 @media (max-width: 480px) {
     .hero h1 {
         font-size: 1.8rem;
     }

     .hero p {
         font-size: 1rem;
     }

     .section-title h2 {
         font-size: 1.7rem;
     }

     .card-header h3 {
         font-size: 1.3rem;
     }

     .sociedades-title {
         font-size: 1.8rem;
     }
 }