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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-white);
}

/* Color Variables - WCAG AA Compliant */
:root {
    --primary-blue: #4169E1;
    --accent-yellow: #FFF44F;
    --neutral-gray: #808080;
    --text-dark: #1a1a1a; /* Improved contrast */
    --text-light: #4a4a4a; /* Improved contrast */
    --background-white: #fff;
    --background-light: #f8fafc;
    --blue-light: #6b8ce8;
    --blue-dark: #2c5aa0;
    --yellow-light: #fff766;
    --yellow-dark: #e6d73a;
    --gray-light: #a0a0a0;
    --gray-dark: #666666;
    --error-color: #d32f2f;
    --success-color: #2e7d32;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-logo h1 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin: 0;
}

.logo-image {
    width: 280px;
    height: auto;
    vertical-align: middle;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-link:hover .logo-image {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-blue);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(65, 105, 225, 0.8) 0%, rgba(44, 90, 160, 0.8) 100%), url('img/woman-dentist.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 0%, rgba(255, 244, 79, 0.15) 50%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-yellow);
    color: var(--primary-blue);
    border-color: var(--accent-yellow);
    font-weight: 600;
}

.btn-primary:hover {
    background: #e6d73a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(65, 105, 225, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-secondary:hover {
    background: var(--accent-yellow);
    color: var(--primary-blue);
    border-color: var(--accent-yellow);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: #fff;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Quick Info Section */
.quick-info {
    padding: 60px 0;
    background: #f8fafc;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.info-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.phone-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
}

.phone-link:hover {
    text-decoration: underline;
}

.landmark {
    font-style: italic;
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Referral Section */
.referral {
    padding: 60px 0;
    background: var(--primary-blue);
    color: white;
    text-align: center;
}

.referral-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.referral-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: #1f2937;
}

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

.service-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(65, 105, 225, 0.2);
    border-color: var(--primary-blue);
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--neutral-gray) 0%, var(--gray-dark) 100%);
    color: white;
    text-align: center;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 0%, rgba(65, 105, 225, 0.1) 50%, transparent 100%);
    pointer-events: none;
}

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

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    background: var(--neutral-gray);
    color: white;
    padding: 60px 0 20px;
}

.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;
    color: #fff;
}

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

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

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Page Content */
.page-content {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
}

.page-title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.page-description {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

.content-section h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

/* Why Choose Section */
.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.why-choose-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
    border-top: 3px solid var(--accent-yellow);
}

.why-choose-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

/* Contact Info */
.contact-info {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.contact-info h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-item strong {
    color: #1f2937;
}

/* Blog */
.blog-intro {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 12px;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-post {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.blog-post:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.blog-post-content {
    padding: 1.5rem;
}

.blog-post h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.blog-post-meta {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Doctor Profile */
.doctor-profile {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.doctor-info h2 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.doctor-title {
    color: #6b7280;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.doctor-experience {
    color: var(--accent-yellow);
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: var(--primary-blue);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
}

.doctor-bio p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Location Info */
.location-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.location-details h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.location-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.map-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Emergency Info */
.emergency-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

/* Directions */
.directions-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

/* Newsletter */
.newsletter-signup {
    background: var(--accent-yellow);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
    text-align: center;
    color: var(--primary-blue);
    font-weight: 600;
}

/* Additional Contact Styles */
.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-item strong {
    color: var(--primary-blue);
    font-weight: 600;
}

/* List Styles */
ul {
    padding-left: 1.5rem;
}

ul li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-image {
        width: 200px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .logo-image {
        width: 150px;
    }
    
    .nav-container {
        padding: 0 10px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        min-height: 100vh;
        padding: 40px 0;
    }

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

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

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .why-choose-grid {
        grid-template-columns: 1fr;
    }

    .contact-details {
        grid-template-columns: 1fr;
    }

    .location-info {
        grid-template-columns: 1fr;
    }

    .location-features {
        grid-template-columns: 1fr;
    }

    .emergency-info {
        grid-template-columns: 1fr;
    }

    .directions-info {
        grid-template-columns: 1fr;
    }

    .doctor-profile {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        min-height: 100vh;
        padding: 20px 0;
    }

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

    .page-content {
        padding: 100px 0 60px;
    }

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.logo-link:focus,
.phone-link:focus,
a:focus {
    outline: 3px solid var(--accent-yellow);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Skip to content link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-yellow);
    color: var(--primary-blue);
    padding: 8px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-blue: #0000FF;
        --accent-yellow: #FFFF00;
        --neutral-gray: #000000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero::before,
    .cta-section::before {
        display: none;
    }
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible for better keyboard navigation */
.btn:focus-visible,
.nav-link:focus-visible,
.logo-link:focus-visible,
.phone-link:focus-visible,
a:focus-visible {
    outline: 3px solid var(--accent-yellow);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Ensure interactive elements are keyboard accessible */
button, a, input, select, textarea {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Improve button contrast */
.btn-primary {
    background: var(--accent-yellow);
    color: var(--primary-blue);
    border-color: var(--accent-yellow);
    font-weight: 600;
    min-height: 44px; /* Minimum touch target size */
    min-width: 44px;
}

.btn-primary:hover {
    background: var(--yellow-dark);
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(65, 105, 225, 0.3);
}

.btn-primary:focus-visible {
    background: var(--yellow-dark);
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Ensure sufficient color contrast for text */
.landmark {
    font-style: italic;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Improve form accessibility */
input, select, textarea {
    font-size: 16px; /* Prevents zoom on mobile */
    padding: 8px 12px;
    border: 2px solid var(--neutral-gray);
    border-radius: 4px;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-color: var(--primary-blue);
}

/* Print styles */
@media print {
    .header,
    .footer,
    .cta-section,
    .hero-cta {
        display: none;
    }
    
    .page-content {
        padding: 0;
    }
}