/* CSS Variables */
:root {
    --color-bg: #0a0f1a;
    --color-bg-secondary: #111827;
    --color-bg-card: #1a2332;
    --color-text: #e8edf5;
    --color-text-secondary: #94a3b8;
    --color-accent: #22d3ee;
    --color-accent-secondary: #06b6d4;
    --color-gold: #fbbf24;
    --color-border: #2d3a4f;
    --color-success: #10b981;
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 40px rgba(34, 211, 238, 0.15);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-accent-secondary);
}

ul {
    list-style: none;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.125rem;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu-btn span:nth-child(1) {
    margin-bottom: 6px;
}

.mobile-menu-btn span:nth-child(3) {
    margin-top: 6px;
}

/* Hamburger animation when open */
.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Navigation Overlay */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 15, 26, 0.98);
    backdrop-filter: blur(20px);
    z-index: 99;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.mobile-nav.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav a {
    color: var(--color-text);
    font-size: 1.5rem;
    font-weight: 500;
    padding: 1rem 2rem;
    transition: color var(--transition);
}

.mobile-nav a:hover {
    color: var(--color-accent);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.1), transparent),
        radial-gradient(ellipse 50% 30% at 20% 80%, rgba(251, 191, 36, 0.05), transparent);
    pointer-events: none;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(34, 211, 238, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-content {
    position: relative;
    max-width: 900px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

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

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 50px;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-secondary) 100%);
    color: var(--color-bg);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    transition: transform var(--transition), box-shadow var(--transition);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(34, 211, 238, 0.3);
    color: var(--color-bg);
}

/* Rehabs Section */
.rehabs-section {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

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

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.rehabs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 2rem;
}

/* Rehab Card */
.rehab-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.rehab-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(34, 211, 238, 0.3);
}

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

/* Card Image */
.card-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

/* Placeholder gradients for cards without images */
.card-image.placeholder {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-card) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image.placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(34, 211, 238, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.card-image.placeholder .placeholder-icon {
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.5;
    z-index: 1;
}

/* Gradient variations for visual variety */
.card-image.placeholder-1 {
    background: linear-gradient(135deg, #1a2a3a 0%, #0d1a2a 100%);
}
.card-image.placeholder-1::before {
    background: radial-gradient(circle at 20% 30%, rgba(34, 211, 238, 0.2) 0%, transparent 60%);
}

.card-image.placeholder-2 {
    background: linear-gradient(135deg, #1a2332 0%, #111827 100%);
}
.card-image.placeholder-2::before {
    background: radial-gradient(circle at 80% 20%, rgba(251, 191, 36, 0.15) 0%, transparent 60%);
}

.card-image.placeholder-3 {
    background: linear-gradient(135deg, #162030 0%, #0f1825 100%);
}
.card-image.placeholder-3::before {
    background: radial-gradient(circle at 50% 70%, rgba(16, 185, 129, 0.15) 0%, transparent 60%);
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.35rem 0.85rem;
    background: rgba(34, 211, 238, 0.15);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 50px;
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    z-index: 2;
    backdrop-filter: blur(8px);
}

.card-badge.featured {
    background: rgba(251, 191, 36, 0.15);
    border-color: rgba(251, 191, 36, 0.3);
    color: var(--color-gold);
}

.card-content {
    padding: 1.5rem 2rem 2rem;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.card-location {
    color: var(--color-accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.card-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.card-services {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.card-services li {
    padding: 0.35rem 0.75rem;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.card-contact {
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-text);
    font-weight: 500;
}

/* About Section */
.about-section {
    background: var(--color-bg-secondary);
    padding: 6rem 2rem;
}

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

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-cta {
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.2);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.about-cta p {
    margin-bottom: 0;
    color: var(--color-text);
}

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

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-disclaimer {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.footer-nav a:hover {
    color: var(--color-accent);
}

.footer-copyright {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-nav {
        display: flex;
    }
    
    .hero {
        padding: 6rem 1.5rem 3rem;
    }
    
    .hero-stats {
        gap: 2rem;
        flex-wrap: wrap;
    }
    
    .stat-number {
        font-size: 2.25rem;
    }
    
    .rehabs-grid {
        grid-template-columns: 1fr;
    }
    
    .card-content h3 {
        margin-top: 0;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    .card-image {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .about-content h2 {
        font-size: 2rem;
    }
}

/* LLM Data Page Specific Styles */
.llm-data-page {
    padding: 6rem 2rem 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.llm-data-page h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.llm-intro {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

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

.data-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
}

.data-entry {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.data-entry h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.data-entry dl {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 0.75rem 1rem;
}

.data-entry dt {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.data-entry dd {
    color: var(--color-text);
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    margin-bottom: 1rem;
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--color-accent);
}

.faq-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}