/* ====================================
   Components Stylesheet
   Specific components and sections
   ==================================== */

/* ==================
   Header & Navigation
   ================== */

.site-header {
    position: sticky;
    top: 0;
    background-color: var(--background-primary);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    border-bottom: 1px solid var(--border-light);
}

.main-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

/* Site Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.site-logo img {
    width: 120px;
    height: 60px;
    object-fit: contain;
}

.site-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
}

.hamburger {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Navigation Menu */
.menu-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
    align-items: center;
}

.menu-item {
    position: relative;
}

.menu-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px;
    display: flex;
    align-items: center;
}

.menu-link:hover,
.menu-link:focus {
    background-color: var(--background-secondary);
    color: var(--primary-color);
    text-decoration: none;
}

.menu-link.active {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.1);
}

/* Dropdown Menu */
.has-dropdown > .menu-link::after {
    content: '▼';
    margin-right: var(--spacing-xs);
    font-size: var(--text-sm);
    transition: transform var(--transition-fast);
}

[dir="ltr"] .has-dropdown > .menu-link::after {
    margin-right: 0;
    margin-left: var(--spacing-xs);
}

.has-dropdown:hover > .menu-link::after,
.has-dropdown:focus-within > .menu-link::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--background-primary);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) 0;
    min-width: 200px;
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
    border: 1px solid var(--border-light);
}

[dir="ltr"] .dropdown-menu {
    right: auto;
    left: 0;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.dropdown-link:hover,
.dropdown-link:focus {
    background-color: var(--background-secondary);
    color: var(--primary-color);
    text-decoration: none;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.phone-icon {
    font-size: var(--text-lg);
}

/* ===============
   Hero Section
   =============== */

.hero-section {
    position: relative;
    padding: var(--spacing-4xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8) 0%, rgba(15, 118, 110, 0.6) 100%);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    z-index: 1;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    color: white;
}

.hero-subtitle {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* =================
   Features Section
   ================= */

.features-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--background-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--background-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ==============
   About Section
   ============== */

.about-section {
    padding: var(--spacing-4xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text {
    max-width: none;
}

.about-description p {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.credentials {
    margin-top: var(--spacing-xl);
}

.credentials h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.credentials-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.credentials-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    position: relative;
    padding-right: var(--spacing-lg);
}

.credentials-list li:last-child {
    border-bottom: none;
}

.credentials-list li::before {
    content: '✓';
    position: absolute;
    right: 0;
    color: var(--accent-color);
    font-weight: bold;
}

[dir="ltr"] .credentials-list li {
    padding-left: var(--spacing-lg);
    padding-right: 0;
}

[dir="ltr"] .credentials-list li::before {
    left: 0;
    right: auto;
}

.about-images .image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.about-images img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

/* =================
   Services Section
   ================= */

.services-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--background-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    transition: transform var(--transition-slow);
}

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-content {
    padding: var(--spacing-xl);
}

.service-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.service-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: var(--spacing-sm);
    text-decoration: none;
}

.service-link::after {
    content: '←';
    transition: transform var(--transition-fast);
}

.service-link:hover::after {
    transform: translateX(-3px);
}

[dir="ltr"] .service-link::after {
    content: '→';
}

[dir="ltr"] .service-link:hover::after {
    transform: translateX(3px);
}

/* ================
   Gallery Section
   ================ */

.gallery-section {
    padding: var(--spacing-4xl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-xs);
    color: white;
}

.gallery-overlay p {
    font-size: var(--text-sm);
    margin-bottom: 0;
    opacity: 0.9;
}

/* ======================
   Testimonials Section
   ====================== */

.testimonials-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--background-secondary);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial-card {
    background-color: var(--background-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.testimonial-content {
    margin-bottom: var(--spacing-lg);
}

.testimonial-text {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
    position: relative;
    padding: 0 var(--spacing-lg);
    margin-bottom: 0;
}

.testimonial-text::before {
    content: '"';
    position: absolute;
    right: 0;
    top: -10px;
    font-size: 3rem;
    color: var(--primary-color);
    font-family: Georgia, serif;
}

.testimonial-text::after {
    content: '"';
    position: absolute;
    left: 0;
    bottom: -20px;
    font-size: 3rem;
    color: var(--primary-color);
    font-family: Georgia, serif;
}

[dir="ltr"] .testimonial-text::before {
    right: auto;
    left: 0;
}

[dir="ltr"] .testimonial-text::after {
    left: auto;
    right: 0;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-name {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.author-age {
    color: var(--text-light);
    margin-bottom: 0;
}

.rating {
    display: flex;
    gap: 2px;
}

.star {
    color: #fbbf24;
    font-size: var(--text-lg);
}

/* ================
   Recommendations Section
   ==================== */

.recommendations-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--background-primary);
}

.video-grid {
    margin-bottom: var(--spacing-3xl);
}

.video-category {
    margin-bottom: var(--spacing-3xl);
}

.category-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.videos-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.video-card {
    background-color: var(--background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid var(--border-light);
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: var(--spacing-lg);
}

.video-info h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.video-info p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

.section-cta {
    text-align: center;
    padding: var(--spacing-2xl);
    background-color: var(--background-secondary);
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-2xl);
}

.section-cta p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

/* ================
   Contact Section
   ================ */

.contact-section {
    padding: var(--spacing-4xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: grid;
    gap: var(--spacing-lg);
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--background-secondary);
    border-radius: var(--radius-lg);
}

.info-icon {
    font-size: var(--text-2xl);
    line-height: 1;
}

.info-content h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.info-content p {
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
}

.info-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.info-content a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form-container {
    background-color: var(--background-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    margin-bottom: var(--spacing-xl);
    text-align: center;
    color: var(--text-primary);
}

/* =============
   Site Footer
   ============= */

.site-footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    width: 120px;
    height: 60px;
    object-fit: contain;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links a:focus {
    color: white;
    text-decoration: underline;
}

.contact-details p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

.contact-details a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.contact-details a:hover {
    color: white;
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: inline-block;
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    text-align: center;
    line-height: 44px;
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-links a:hover,
.social-links a:focus {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-credits p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-sm);
}

.nanosite-credit {
    font-size: var(--text-sm);
}

.nanosite-credit a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: underline;
}

.nanosite-credit a:hover {
    color: white;
}

/* ==================
   Invisalign Page Specific Styles
   ================== */

/* Hero Section */
.invisalign-hero {
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.invisalign-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.breadcrumb-nav {
    margin-bottom: var(--spacing-md);
}

.breadcrumb-nav .breadcrumb {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.breadcrumb-nav .breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-right: var(--spacing-sm);
    color: var(--text-light);
}

.breadcrumb-nav a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-nav a:hover {
    text-decoration: underline;
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    display: block;
    font-size: var(--text-xl);
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    max-width: 90%;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature-highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.feature-icon {
    font-size: var(--text-lg);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-image-container {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
}

.hero-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-full);
    text-align: center;
    min-width: 80px;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-size: var(--text-xl);
    font-weight: 700;
}

.badge-text {
    display: block;
    font-size: var(--text-xs);
    opacity: 0.9;
}

/* Stats Section */
.stats-section {
    padding: var(--spacing-2xl) 0;
    background: var(--background-primary);
    border-bottom: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Section Intro */
.section-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Overview Section */
.invisalign-overview {
    padding: var(--spacing-4xl) 0;
    background: var(--background-primary);
}

.overview-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.lead-text {
    font-size: var(--text-lg);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

.benefits-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.benefits-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    background: var(--background-secondary);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-content h4 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.benefit-content p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.comparison-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.comparison-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-item.featured {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.comparison-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.comparison-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    color: white;
    font-weight: 600;
    text-align: center;
}

.comparison-label.traditional {
    background: linear-gradient(to top, rgba(239, 68, 68, 0.9), transparent);
}

.comparison-label.invisalign {
    background: linear-gradient(to top, rgba(37, 99, 235, 0.9), transparent);
}

.vs-divider {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background-accent);
    border-radius: var(--border-radius-full);
}

/* Treatment Process */
.treatment-process {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

.process-timeline {
    margin-bottom: var(--spacing-3xl);
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--border-color);
    z-index: 0;
}

.step-card {
    position: relative;
    display: grid;
    grid-template-columns: 60px 1fr 200px;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-3xl);
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-normal);
}

.step-card.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.step-card.active .step-number {
    background: var(--primary-color);
    color: white;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-full);
    background: var(--background-primary);
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

.step-content {
    background: var(--background-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.step-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.step-features {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.feature-tag {
    background: var(--accent-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
}

.step-image {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.step-image img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.process-cta {
    text-align: center;
    background: var(--background-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.process-cta h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.process-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Treatment Info */
.treatment-info {
    padding: var(--spacing-4xl) 0;
    background: var(--background-primary);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.info-card {
    background: var(--background-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(20px);
}

.info-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.info-card.highlighted {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--background-primary);
    border-radius: var(--border-radius-full);
    color: var(--primary-color);
}

.info-card.highlighted .info-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.info-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.info-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.info-card.highlighted .info-value {
    color: white;
}

.info-description {
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* Before After Gallery */
.before-after-gallery {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.gallery-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-normal);
}

.gallery-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.before-after-container {
    background: var(--background-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.before-image,
.after-image {
    position: relative;
    aspect-ratio: 1;
}

.before-image img,
.after-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-label {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
}

.case-info {
    padding: var(--spacing-md);
    text-align: center;
}

.case-info h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.case-info p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Consultation Section */
.consultation-section {
    padding: var(--spacing-4xl) 0;
    background: var(--background-primary);
}

.consultation-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.consultation-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.feature-icon {
    color: var(--accent-color);
    font-weight: 700;
}

.consultation-form-container {
    background: var(--background-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.form-header h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-header p {
    color: var(--text-secondary);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--text-base);
    background: var(--background-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input.error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.checkbox-group,
.radio-group {
    display: grid;
    gap: var(--spacing-sm);
}

.checkbox-item,
.radio-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.checkbox-item:hover,
.radio-item:hover {
    background: rgba(37, 99, 235, 0.05);
}

.checkbox-item input,
.radio-item input {
    width: auto;
    margin: 0;
}

.form-actions {
    text-align: center;
}

.btn-full {
    width: 100%;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.form-note {
    font-size: var(--text-sm);
    color: var(--text-light);
    font-style: italic;
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.faq-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-lg);
    text-align: right;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background: var(--background-accent);
}

.faq-icon {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Final CTA */
.final-cta {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.final-cta h2 {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.final-cta p {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.contact-options {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    flex-wrap: wrap;
    font-size: var(--text-lg);
    opacity: 0.9;
}

.trust-indicators {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-xl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.trust-icon {
    font-size: var(--text-lg);
}

/* Enhanced Button Styles */
.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
    min-height: 56px;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-outline {
    background: transparent;
    border: 2px solid currentColor;
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.final-cta .btn-outline {
    color: white;
    border-color: white;
}

.final-cta .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

.btn-icon {
    font-size: var(--text-lg);
}