/* ===================================
   OZARK GASTROENTEROLOGY
   Premium Dark Luxury Medical Website
   =================================== */

/* CSS Custom Properties */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a2235;
    --bg-card-hover: #1e2740;
    --bg-elevated: #243049;
    
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;
    
    --gold-400: #fcd34d;
    --gold-500: #f59e0b;
    --gold-600: #d97706;
    --gold-700: #b45309;
    
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: rgba(148, 163, 184, 0.1);
    --border-gold: rgba(245, 158, 11, 0.3);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --font-heading: 'Cinzel', serif;
    --font-body: 'Montserrat', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

h4 {
    font-size: 1.125rem;
    font-family: var(--font-body);
    font-weight: 600;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
    color: var(--bg-primary);
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    background: linear-gradient(135deg, var(--gold-400) 0%, var(--gold-500) 100%);
}

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

.btn-outline:hover {
    border-color: var(--teal-500);
    color: var(--teal-400);
    background: rgba(20, 184, 166, 0.1);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Section Tags */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--teal-400);
    margin-bottom: 1rem;
    padding: 0.375rem 0.75rem;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: var(--radius-sm);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--gold-500);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--teal-400);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, #0d1520 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(20, 184, 166, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold-500);
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
}

.hero h1 {
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--slate-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--gold-500);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Image */
.hero-image {
    position: relative;
}

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

.hero-image-wrapper img {
    width: 100%;
    height: 700px;
    object-fit: cover;
}

.hero-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--teal-600) 0%, var(--teal-800) 100%);
    border-radius: var(--radius-xl);
    opacity: 0.3;
    z-index: -1;
}

.hero-floating-card {
    position: absolute;
    bottom: 2rem;
    left: -2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.floating-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--teal-500) 0%, var(--teal-600) 100%);
    border-radius: var(--radius-md);
    color: white;
}

.floating-card-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.floating-card-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: var(--bg-secondary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(20, 184, 166, 0.3);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15) 0%, rgba(20, 184, 166, 0.05) 100%);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: var(--radius-lg);
    color: var(--teal-400);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--bg-primary);
    position: relative;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image-section {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-main img {
    width: 100%;
    height: 600px;
    object-fit: cover;
}

.about-image-secondary {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
    width: 280px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--bg-primary);
}

.about-image-secondary img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.about-experience-badge {
    position: absolute;
    top: 2rem;
    right: -1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.experience-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--bg-primary);
    line-height: 1;
}

.experience-text {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--bg-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-text {
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.about-feature {
    display: flex;
    gap: 1rem;
}

.feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: var(--radius-md);
    color: var(--teal-400);
}

.feature-content h4 {
    margin-bottom: 0.25rem;
}

.feature-content p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--bg-secondary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    margin-bottom: 1rem;
}

.contact-info > p {
    margin-bottom: 2rem;
    font-size: 1.0625rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--teal-400);
}

.contact-text h4 {
    margin-bottom: 0.25rem;
}

.contact-text p,
.contact-text a {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.contact-text a:hover {
    color: var(--teal-400);
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.contact-map iframe {
    width: 100%;
    height: 250px;
}

/* Contact Form */
.contact-form-section {
    display: flex;
    align-items: flex-start;
}

.contact-form-wrapper {
    width: 100%;
    padding: 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.contact-form-wrapper h3 {
    margin-bottom: 0.5rem;
}

.contact-form-wrapper > p {
    margin-bottom: 2rem;
    font-size: 0.9375rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal-500);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Form Success */
.form-success {
    display: none;
    text-align: center;
    padding: 2rem;
}

.form-success.active {
    display: block;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--teal-500) 0%, var(--teal-600) 100%);
    border-radius: 50%;
    color: white;
}

.form-success h4 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.form-success p {
    margin-bottom: 1.5rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--teal-400);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.footer-contact a:hover {
    color: var(--teal-400);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    display: block;
    padding: 1rem 0;
    font-size: 1.125rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu .btn {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-image-wrapper img {
        height: 500px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image-section {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 7rem 0 3rem;
        min-height: auto;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
    }
    
    .stat-divider {
        display: none;
    }
    
    .hero-floating-card {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-secondary {
        width: 200px;
        right: -1rem;
        bottom: -1rem;
    }
    
    .about-experience-badge {
        right: 0;
        top: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-floating-card {
    animation: float 3s ease-in-out infinite;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}