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

:root {
    /* Primary Colors */
    --primary-500: #0284C7;
    --primary-700: #0369A1;
    --primary-50: #F0F9FF;
    
    /* Secondary Colors */
    --accent-500: #10B981;
    --accent-50: #ECFDF5;
    
    /* Neutral Colors */
    --neutral-900: #0F172A;
    --neutral-600: #475569;
    --neutral-200: #E2E8F0;
    --neutral-50: #F8FAFC;
    
    /* Surface Colors */
    --surface-white: #FFFFFF;
    
    /* Semantic Colors */
    --error: #EF4444;
    --success: #10B981;
    --warning: #F59E0B;
    
    /* Typography */
    --font-family: 'Inter', sans-serif;
    --font-size-display: 64px;
    --font-size-h2: 40px;
    --font-size-h3: 24px;
    --font-size-body-large: 20px;
    --font-size-body: 16px;
    --font-size-label: 14px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
    --spacing-xxl: 96px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 100px;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(2, 132, 199, 0.1), 0 4px 6px -2px rgba(2, 132, 199, 0.05);
    
    /* Layout */
    --container-max-width: 1280px;
    --nav-height: 80px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: 1.6;
    color: var(--neutral-600);
    background-color: var(--neutral-50);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--neutral-900);
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: var(--font-size-display);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-h2);
    font-weight: 600;
    letter-spacing: -0.01em;
}

h3 {
    font-size: var(--font-size-h3);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-label);
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 56px;
}

.btn-primary {
    background-color: var(--primary-500);
    color: var(--surface-white);
}

.btn-primary:hover {
    background-color: var(--primary-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--surface-white);
    color: var(--neutral-700);
    border: 1px solid var(--neutral-200);
}

.btn-secondary:hover {
    border-color: var(--primary-500);
    color: var(--primary-500);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-500);
    border: 1px solid var(--primary-500);
}

.btn-outline:hover {
    background-color: var(--primary-500);
    color: var(--surface-white);
}

.btn-text {
    background-color: transparent;
    color: var(--primary-500);
    padding: var(--spacing-sm) 0;
    min-height: auto;
}

.btn-text:hover {
    color: var(--primary-700);
}

.btn-full {
    width: 100%;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--surface-white);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 1000;
    height: var(--nav-height);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--neutral-900);
    font-weight: 700;
    font-size: 24px;
}

.brand-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-500);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--neutral-600);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-500);
}

.nav-cta {
    margin-left: var(--spacing-lg);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--neutral-600);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: calc(var(--nav-height) + var(--spacing-xxl)) 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--neutral-50) 100%);
    min-height: 650px;
    display: flex;
    align-items: center;
}

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

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--neutral-900);
}

.hero-subtitle {
    font-size: var(--font-size-body-large);
    color: var(--neutral-600);
    max-width: 540px;
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-placeholder {
    width: 100%;
    max-width: 400px;
    height: 300px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.hero-svg {
    width: 100%;
    height: 100%;
}

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

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-body-large);
    color: var(--neutral-600);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--surface-white);
}

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

.about-image-placeholder {
    width: 100%;
    height: 250px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.about-svg {
    width: 100%;
    height: 100%;
}

.about-description {
    font-size: var(--font-size-body-large);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

/* Services Section */
.services {
    padding: var(--spacing-xxl) 0;
    background-color: var(--neutral-50);
}

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

.service-card {
    background-color: var(--surface-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    min-height: 280px;
}

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

.service-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-50);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-500);
}

.service-title {
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-900);
}

.service-description {
    color: var(--neutral-600);
}

.services-cta {
    text-align: center;
}

/* Why Choose Us Section */
.why-choose-us {
    padding: var(--spacing-xxl) 0;
    background-color: var(--surface-white);
}

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

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-500);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon svg {
    width: 24px;
    height: 24px;
    color: var(--surface-white);
}

.benefit-title {
    font-size: var(--font-size-body);
    color: var(--neutral-900);
    margin: 0;
}

/* Insurance Section */
.insurance {
    padding: var(--spacing-xxl) 0;
    background-color: var(--primary-50);
}

.insurance-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.insurance-text {
    font-size: var(--font-size-body-large);
    margin-bottom: var(--spacing-lg);
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-xxl) 0;
    background-color: var(--neutral-50);
}

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

.testimonial-card {
    background-color: var(--surface-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.testimonial-quote {
    width: 40px;
    height: 40px;
    background-color: var(--primary-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.testimonial-quote svg {
    width: 20px;
    height: 20px;
    color: var(--primary-500);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--neutral-600);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary-500);
    color: var(--surface-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.author-name {
    font-size: var(--font-size-body);
    color: var(--neutral-900);
    margin: 0;
}

.author-role {
    font-size: 14px;
    color: var(--neutral-600);
    margin: 0;
}

/* Contact Section */
.contact {
    padding: var(--spacing-xxl) 0;
    background-color: var(--surface-white);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-50);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-500);
}

.contact-label {
    font-size: var(--font-size-body);
    color: var(--neutral-900);
    margin: 0 0 var(--spacing-xs) 0;
}

.contact-value {
    color: var(--neutral-600);
    margin: 0;
}

/* Forms */
.appointment-form-container {
    background-color: var(--surface-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.form-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--neutral-900);
}

.appointment-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-label {
    font-size: var(--font-size-label);
    font-weight: 500;
    color: var(--neutral-700);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    padding: var(--spacing-sm);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    transition: all 0.3s ease;
    min-height: 56px;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px var(--primary-50);
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--neutral-200);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-input:checked + .checkbox-custom {
    background-color: var(--primary-500);
    border-color: var(--primary-500);
}

.checkbox-input:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--surface-white);
    font-size: 12px;
    font-weight: bold;
}

.form-success {
    background-color: var(--accent-50);
    color: var(--accent-500);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 500;
}

.hidden {
    display: none;
}

/* Footer */
.footer {
    background-color: var(--neutral-900);
    color: var(--neutral-400);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--surface-white);
    font-weight: 700;
    font-size: 20px;
}

.footer-text {
    color: var(--neutral-400);
    line-height: 1.6;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--neutral-800);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-400);
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--primary-500);
    color: var(--surface-white);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-heading {
    color: var(--surface-white);
    font-size: var(--font-size-body);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.footer-list li {
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    color: var(--neutral-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-500);
}

.footer-bottom {
    border-top: 1px solid var(--neutral-800);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.copyright {
    color: var(--neutral-400);
    margin: 0;
}

/* Popups */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background-color: var(--surface-white);
    border-radius: var(--radius-md);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-md);
}

.popup-overlay.active .popup-content {
    transform: scale(1);
}

.popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--neutral-200);
}

.popup-title {
    color: var(--neutral-900);
    margin: 0;
}

.popup-close {
    width: 40px;
    height: 40px;
    background-color: var(--neutral-100);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.popup-close:hover {
    background-color: var(--neutral-200);
}

.popup-close svg {
    width: 20px;
    height: 20px;
    color: var(--neutral-600);
}

.popup-body {
    padding: var(--spacing-lg);
}

.popup-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--neutral-200);
    text-align: center;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --font-size-display: 48px;
        --font-size-h2: 32px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero .container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-display: 40px;
        --font-size-h2: 28px;
        --spacing-xxl: 64px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: calc(var(--nav-height) + var(--spacing-xl)) 0 var(--spacing-xl);
        min-height: auto;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .popup-content {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .popup-header,
    .popup-body,
    .popup-footer {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .service-card,
    .testimonial-card,
    .appointment-form-container {
        padding: var(--spacing-md);
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
}

/* Smooth scrolling for anchor links */
html {
    scroll-padding-top: var(--nav-height);
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

button:focus,
.btn:focus {
    outline: 2px solid var(--surface-white);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .nav-container,
    .hero-cta,
    .popup-overlay {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
}