/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    padding-top: var(--header-h);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* CSS Variables for Theming */
:root {
    --header-h: 72px;
    --primary-50: hsl(166, 76%, 97%);
    --primary-100: hsl(167, 85%, 89%);
    --primary-500: hsl(173, 80%, 40%);
    --primary-600: hsl(172, 81%, 32%);
    --primary-700: hsl(175, 84%, 24%);
    --secondary-500: hsl(217, 91%, 60%);
    --secondary-600: hsl(224, 79%, 31%);
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

section {
    scroll-margin-top: var(--header-h);
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.25rem;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.white-text {
    color: var(--white) !important;
    -webkit-text-fill-color: var(--white) !important;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    line-height: 1;
    transform: translateY(0);
}

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

.btn-primary {
    background: var(--primary-600);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-700);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-600);
}

:focus-visible {
    outline: 3px solid var(--secondary-500);
    outline-offset: 2px;
}

.nav-link:focus-visible,
.mobile-nav-link:focus-visible,
.btn:focus-visible,
.mobile-menu-btn:focus-visible,
.social-links a:focus-visible {
    outline: 3px solid var(--secondary-500);
    outline-offset: 3px;
    border-radius: 6px;
}


/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h2 {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 400;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-600);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--primary-600);
    border-radius: 1px;
    transition: width .25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}


.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
}

.mobile-menu-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}


.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem 0;
    border-top: 1px solid #e5e7eb;
}

.mobile-nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.mobile-nav-link:hover {
    color: var(--primary-600);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,
            rgba(13, 148, 136, 0.8),
            rgba(30, 64, 175, 0.8)), url('https://images.unsplash.com/photo-1559757148-5c350d0d3c56?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&h=1080');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    text-align: center;
    position: relative;
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-title .highlight {
    color: hsl(167, 85%, 85%);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.85;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Spacing */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 1rem;
}

/* About Section */
.about {
    background: var(--bg-light);
    padding: 50px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-dark);
}

/* Container layout */
.about-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

/* Text section */
.about-content {
    flex: 1 1 50%;
    font-style: italic;
}

.about-text-only {
    max-width: 700px;
    text-align: justify;
}

.about-text-only p {
    font-size: 1.2rem;
    color: var(--text-dark);
    line-height: 1.8;
    margin: 0;
}

/* Image Box */
.about-image {
    flex: 1 1 40%;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;

    max-width: 350px;
    margin: 0 auto;
    position: relative;
}

/* Doctor Photo */
.about-photo {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    display: block;
    transition: transform 0.4s ease;
}

/* Hover effects */
.about-image:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.about-image:hover .about-photo {
    transform: scale(1.05);
}

/* ✅ Responsive (mobile-first adjustments) */
@media (max-width: 768px) {
    .about-container {
        flex-direction: column;
        text-align: center;
    }

    .about-image {
        order: -1;
        /* show image above text */
        max-width: 280px;
        margin: 0 auto 1.5rem auto;
    }

    .about-content {
        flex: 1 1 100%;
        text-align: justify;
    }

    .about-text-only p {
        font-size: 1rem;
        line-height: 1.6;
    }

    .section-title {
        font-size: 1.6rem;
    }
}

/* Treatments Section */
.treatments {
    background: var(--white);
}

.treatments-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.treatment-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.treatment-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.treatment-image {
    position: relative;
    overflow: hidden;
}

.treatment-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

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

.treatment-content {
    padding: 2rem;
}

.treatment-content p {
    color: var(--text-dark);
    text-align: justify;
    line-height: 1.6;
    font-size: 1rem;
}

/* Patient Videos Section */
.patient-videos {
    background: var(--bg-light);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.video-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.video-placeholder {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    display: flex;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    position: relative;
}

.video-placeholder-content {
    width: 100%;
    height: 100%;
    text-align: center;
    color: white;
}

.video-placeholder-content video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
    display: block;
}

.video-placeholder-content i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.video-placeholder-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.video-placeholder-content p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 0;
}

.video-content {
    padding: 1.5rem;
}

.video-content p {
    color: var(--text-dark);
    font-size: 1rem;
    line-height: 1.5;
}

/* Testimonials Section */
.testimonials {
    background: var(--white);
}

.testimonials-carousel {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-container {
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial-slide {
    width: 100%;
    flex-shrink: 0;
    padding: 0 1rem;
}

.testimonial-content {
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.patient-info {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.patient-details h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.rating i {
    color: #fbbf24;
    font-size: 1rem;
}

.testimonial-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-light);
    font-style: italic;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: #d1d5db;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-600);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: var(--white);
}

.contact-content-simple {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-simple {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    text-align: center;
    max-width: 600px;
    width: 100%;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-100);
    width: 30px;
    text-align: center;
}

.contact-item p {
    font-size: 1.125rem;
    margin: 0;
    color: var(--white);
}

.contact-item a {
    color: var(--primary-100);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--white);
}

/* Footer */
.footer {
    background: #1f2937;
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

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

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:focus-visible {
    color: var(--white);
    text-decoration: underline;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.contact-info-list li i {
    margin-right: 0.5rem;
    width: 16px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-600);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--white);
    font-size: 3rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.lightbox-close:hover {
    color: #ccc;
}

#lightboxImage {
    max-width: min(900px, 90vw);
    max-height: 90vh;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
}

/* Section anchor alignment */
.section-title,
.section-description {
    scroll-margin-top: var(--header-h);
}

/* Video Modal */
.video-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.video-modal.active {
    display: flex;
}

.video-modal-content {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    text-align: center;
    position: relative;
    max-width: 500px;
    width: 100%;
}

.video-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #666;
    transition: var(--transition);
}

.video-modal-close:hover {
    color: #333;
}

#videoModalTitle {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

#videoModalDescription {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Success Message */
.success-message {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--white);
    border-left: 4px solid #10b981;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    padding: 1.5rem;
    z-index: 9999;
    transform: translateX(400px);
    transition: var(--transition);
    max-width: 350px;
}

.success-message.show {
    transform: translateX(0);
}

.success-content {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.success-content i {
    color: #10b981;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.success-content h4 {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin: 0 0 0.25rem 0;
}

.success-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.4;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-slide-up {
    animation: slideUp 1s ease-out 0.2s both;
}

.animate-slide-in-left {
    animation: slideInLeft 1s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 1s ease-out;
}

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --header-h: 64px;
    }

    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu.active {
        display: flex;
    }

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

    .hero {
        background-attachment: scroll;
    }

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-content {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .contact-content-simple {
        padding: 0 1rem;
    }

    .contact-simple {
        padding: 2rem;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .treatments-grid,
    .videos-grid {
        grid-template-columns: 1, 1fr;
    }

    .container {
        padding: 0 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .testimonial-content {
        padding: 2rem;
    }

    .patient-info {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .patient-info img {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .success-message {
        top: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .info-card,
    .form-card {
        padding: 1.5rem;
    }

    .video-modal-content {
        padding: 2rem;
        margin: 1rem;
    }
}

@media (max-width: 1200px) {
    .treatments-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .treatments-grid {
        grid-template-columns: repeat(1, 1fr);
    }
}

/* Smooth Scrolling Enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    }
}

/* Print Styles */
@media print {

    .header,
    .lightbox,
    .video-modal,
    .success-message {
        display: none !important;
    }

    .hero {
        background: none !important;
        color: var(--text-dark) !important;
        min-height: auto !important;
        padding: 2rem 0 !important;
    }

    section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}