* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #ffffff;
}

.ad-disclosure {
    background-color: #f8f9fa;
    text-align: center;
    padding: 8px;
    font-size: 0.875rem;
    color: #6c757d;
    border-bottom: 1px solid #e9ecef;
}

.main-nav {
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #3498db;
}

.hero-split {
    display: flex;
    min-height: 600px;
    align-items: stretch;
}

.hero-content {
    flex: 1;
    padding: 4rem 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: #f8f9fa;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #5a6c7d;
    max-width: 540px;
}

.hero-visual {
    flex: 1;
    background-color: #e9ecef;
    position: relative;
    overflow: hidden;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cta-primary {
    display: inline-block;
    background-color: #3498db;
    color: #ffffff;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: background-color 0.3s, transform 0.2s;
    align-self: flex-start;
}

.cta-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.intro-section {
    padding: 5rem 2rem;
    background-color: #ffffff;
}

.intro-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 4rem;
    align-items: center;
}

.intro-text {
    flex: 1.5;
}

.intro-text h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.intro-text p {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: #5a6c7d;
}

.intro-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #5a6c7d;
}

.approach-section {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
    gap: 4rem;
    align-items: center;
}

.approach-visual {
    flex: 1;
    background-color: #e9ecef;
}

.approach-visual img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.approach-content {
    flex: 1;
}

.approach-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.approach-content p {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: #5a6c7d;
}

.approach-content a[href^="https://pubmed"] {
    color: #3498db;
    text-decoration: none;
}

.approach-content a[href^="https://pubmed"]:hover {
    text-decoration: underline;
}

.link-arrow {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: transform 0.3s;
}

.link-arrow:hover {
    transform: translateX(5px);
}

.link-arrow::after {
    content: " →";
}

.services-preview {
    padding: 5rem 2rem;
    background-color: #f8f9fa;
}

.services-header {
    max-width: 1200px;
    margin: 0 auto 3rem;
    text-align: center;
}

.services-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.services-header p {
    font-size: 1.25rem;
    color: #5a6c7d;
}

.services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.service-card {
    flex: 1;
    min-width: 300px;
    background-color: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
}

.service-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background-color: #e9ecef;
}

.service-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    font-size: 1.5rem;
    color: #2c3e50;
}

.service-card p {
    padding: 0 1.5rem 1rem;
    color: #5a6c7d;
    flex-grow: 1;
}

.service-card .price {
    padding: 0 1.5rem 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #3498db;
    display: block;
}

.service-card .select-service {
    margin: 0 1.5rem 1.5rem;
    padding: 0.875rem 1.5rem;
    background-color: #3498db;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.service-card .select-service:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.testimonial-section {
    padding: 5rem 2rem;
    background-color: #2c3e50;
    color: #ffffff;
}

.testimonial-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 3rem;
}

.testimonial-container blockquote {
    flex: 1;
    padding: 2rem;
    border-left: 4px solid #3498db;
    background-color: rgba(255,255,255,0.05);
}

.testimonial-container p {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    font-style: italic;
}

.testimonial-container cite {
    font-style: normal;
    font-weight: 600;
    color: #3498db;
}

.form-section {
    display: flex;
    max-width: 1200px;
    margin: 5rem auto;
    padding: 0 2rem;
    gap: 4rem;
    align-items: stretch;
}

.form-visual {
    flex: 1;
    background-color: #e9ecef;
}

.form-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.form-container {
    flex: 1;
    padding: 2rem;
}

.form-container h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.form-container > p {
    margin-bottom: 2rem;
    color: #5a6c7d;
    font-size: 1.125rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.service-selection {
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 4px;
    border: 2px dashed #dee2e6;
}

.service-selection.has-selection {
    background-color: #e7f5ff;
    border-color: #3498db;
    border-style: solid;
}

.selection-prompt {
    color: #6c757d;
    font-size: 0.95rem;
}

.selected-service-display {
    color: #2c3e50;
    font-weight: 600;
    font-size: 1.125rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    padding: 0.875rem;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.btn-submit {
    padding: 1rem 2rem;
    background-color: #3498db;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-submit:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-submit:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
    transform: none;
}

.final-cta {
    padding: 5rem 2rem;
    background-color: #3498db;
    text-align: center;
}

.final-cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.final-cta-content h2 {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 1rem;
}

.final-cta-content p {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-secondary {
    display: inline-block;
    background-color: #ffffff;
    color: #3498db;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: transform 0.2s;
}

.cta-secondary:hover {
    transform: translateY(-2px);
}

.main-footer {
    background-color: #2c3e50;
    color: #ffffff;
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto 3rem;
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: #3498db;
    font-size: 1.125rem;
}

.footer-column p {
    color: #95a5a6;
}

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

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: #95a5a6;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: #3498db;
}

.footer-references {
    max-width: 1200px;
    margin: 0 auto 2rem;
    padding: 2rem 0;
    border-top: 1px solid #34495e;
}

.footer-references h4 {
    color: #3498db;
    margin-bottom: 1rem;
}

.footer-references ol {
    color: #95a5a6;
    padding-left: 1.5rem;
}

.footer-references li {
    margin-bottom: 0.5rem;
}

.footer-references a {
    color: #95a5a6;
    text-decoration: none;
}

.footer-references a:hover {
    color: #3498db;
    text-decoration: underline;
}

.footer-disclaimer {
    max-width: 1200px;
    margin: 0 auto 2rem;
    padding: 1.5rem;
    background-color: rgba(255,255,255,0.05);
    border-radius: 4px;
}

.footer-disclaimer p {
    font-size: 0.875rem;
    color: #95a5a6;
    line-height: 1.6;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid #34495e;
    text-align: center;
    color: #95a5a6;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #2c3e50;
    color: #ffffff;
    padding: 1.5rem;
    box-shadow: 0 -2px 12px rgba(0,0,0,0.2);
    z-index: 2000;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1;
    margin: 0;
}

.cookie-content a {
    color: #3498db;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.btn-accept,
.btn-reject {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-accept {
    background-color: #3498db;
    color: #ffffff;
}

.btn-accept:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-reject {
    background-color: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.btn-reject:hover {
    background-color: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .hero-split {
        flex-direction: column;
    }

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

    .intro-wrapper {
        flex-direction: column;
    }

    .approach-section {
        flex-direction: column;
    }

    .services-grid {
        flex-direction: column;
    }

    .testimonial-container {
        flex-direction: column;
    }

    .form-section {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}