/* Klinik Demo Colors & Variables */
:root {
    --clinic-primary: #0D9488; /* Teal 600 */
    --clinic-primary-dark: #0F766E; /* Teal 700 */
    --clinic-primary-light: #CCFBF1; /* Teal 50 */
    --clinic-secondary: #0284C7; /* Light Blue 600 */
    --clinic-text: #1E293B; /* Slate 800 */
    --clinic-text-light: #64748B; /* Slate 500 */
    --clinic-bg: #F8FAFC; /* Slate 50 */
    --clinic-white: #FFFFFF;
    
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
}

/* Global Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--font-sans);
    color: var(--clinic-text);
    background-color: var(--clinic-white);
    line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
}
.btn-primary {
    background-color: var(--clinic-primary);
    color: var(--clinic-white);
}
.btn-primary:hover {
    background-color: var(--clinic-primary-dark);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.2);
}
.btn-outline {
    background-color: transparent;
    color: var(--clinic-primary);
    border: 2px solid var(--clinic-primary);
}
.btn-outline:hover {
    background-color: var(--clinic-primary-light);
}

/* Header */
header {
    padding: 20px 0;
    border-bottom: 1px solid #E2E8F0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--clinic-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}
.nav-links a {
    color: var(--clinic-text);
    font-weight: 500;
}
.nav-links a:hover {
    color: var(--clinic-primary);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--clinic-primary);
}
.hamburger svg { width: 32px; height: 32px; }

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--clinic-primary-light) 0%, var(--clinic-bg) 100%);
    padding: 80px 0;
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-text h1 {
    font-family: var(--font-heading);
    font-size: 56px;
    line-height: 1.2;
    color: var(--clinic-text);
    margin-bottom: 24px;
}
.hero-text h1 span { color: var(--clinic-primary); }
.hero-text p {
    font-size: 18px;
    color: var(--clinic-text-light);
    margin-bottom: 32px;
}
.hero-image img {
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Services */
.services { padding: 100px 0; background-color: var(--clinic-white); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 {
    font-family: var(--font-heading);
    font-size: 40px;
    color: var(--clinic-primary);
    margin-bottom: 16px;
}
.section-header p {
    color: var(--clinic-text-light);
    max-width: 600px;
    margin: 0 auto;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.service-card {
    padding: 32px;
    border-radius: 12px;
    background: var(--clinic-bg);
    border: 1px solid #E2E8F0;
    transition: transform 0.3s ease;
}
.service-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.service-icon {
    width: 60px; height: 60px;
    background: var(--clinic-primary-light);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 24px;
    color: var(--clinic-primary);
}
.service-card h3 { font-size: 20px; margin-bottom: 12px; }
.service-card p { color: var(--clinic-text-light); font-size: 15px; }

/* Doctor Profile */
.doctors { padding: 100px 0; background-color: var(--clinic-bg); }
.doctor-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.doctor-image img {
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}
.doctor-info h2 {
    font-family: var(--font-heading);
    font-size: 36px;
    color: var(--clinic-primary);
    margin-bottom: 8px;
}
.doctor-title {
    color: var(--clinic-secondary);
    font-weight: 600;
    margin-bottom: 24px;
    display: block;
}
.doctor-info p { color: var(--clinic-text-light); margin-bottom: 24px; }
.doctor-badges { display: flex; gap: 16px; margin-bottom: 32px; }
.badge { background: var(--clinic-white); padding: 8px 16px; border-radius: 50px; font-size: 14px; font-weight: 500; border: 1px solid #E2E8F0; }

/* Facility */
.facility { padding: 100px 0; background-color: var(--clinic-white); }
.facility-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.facility-text h2 { font-family: var(--font-heading); font-size: 40px; color: var(--clinic-primary); margin-bottom: 24px; }
.facility-text p { color: var(--clinic-text-light); margin-bottom: 24px; font-size: 18px; }

/* Testimonials */
.testimonials { padding: 100px 0; background-color: var(--clinic-bg); }
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.testimonial-card {
    background: var(--clinic-white);
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease;
}
.testimonial-card:hover {
    transform: translateY(-5px);
}
.testimonial-rating {
    color: #F59E0B;
    font-size: 24px;
    margin-bottom: 20px;
    letter-spacing: 2px;
}
.testimonial-text {
    font-size: 16px;
    color: var(--clinic-text);
    font-style: italic;
    margin-bottom: 32px;
    line-height: 1.8;
    flex-grow: 1;
}
.testimonial-user {
    display: flex;
    align-items: center;
    gap: 16px;
}
.testimonial-avatar {
    width: 50px;
    height: 50px;
    background-color: var(--clinic-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clinic-primary);
}
.testimonial-avatar svg { width: 24px; height: 24px; }
.testimonial-user h4 {
    font-size: 16px;
    color: var(--clinic-text);
    margin-bottom: 4px;
}
.testimonial-user span {
    font-size: 14px;
    color: var(--clinic-text-light);
}

/* FAQ Section */
.faq { padding: 100px 0; background-color: var(--clinic-white); }
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.faq-item {
    background: var(--clinic-bg);
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
}
.faq-item summary {
    padding: 24px;
    font-weight: 600;
    font-size: 18px;
    color: var(--clinic-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '+';
    font-size: 24px;
    color: var(--clinic-primary);
    font-weight: 400;
    transition: transform 0.3s ease;
}
.faq-item[open] summary::after {
    content: '\2212'; /* Minus sign */
    transform: rotate(180deg);
}
.faq-item[open] summary {
    background-color: var(--clinic-primary-light);
    color: var(--clinic-primary-dark);
}
.faq-content {
    padding: 0 24px 24px;
    color: var(--clinic-text-light);
    font-size: 16px;
    line-height: 1.6;
}

/* CTA Area */
.cta-area {
    padding: 80px 0;
    background: var(--clinic-primary);
    color: var(--clinic-white);
    text-align: center;
}
.cta-area h2 { font-family: var(--font-heading); font-size: 40px; margin-bottom: 24px; }
.cta-area p { font-size: 18px; margin-bottom: 32px; opacity: 0.9; }

/* Footer */
footer {
    padding: 80px 0 24px;
    background: var(--clinic-text);
    color: var(--clinic-white);
}
.footer-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 32px; 
    margin-bottom: 60px; 
}
.footer-col.card-style {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px 32px;
    border-radius: 16px;
    transition: transform 0.3s ease, background 0.3s ease;
    display: flex;
    flex-direction: column;
}
.footer-col.card-style:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
}
.col-icon {
    width: 48px;
    height: 48px;
    background: rgba(13, 148, 136, 0.15);
    color: var(--clinic-primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.col-icon svg { width: 24px; height: 24px; }
.footer-col h3, .footer-col h4 {
    font-family: var(--font-heading);
    color: var(--clinic-white);
    margin-bottom: 16px;
    font-size: 22px;
}
.footer-col p {
    color: #94A3B8;
    line-height: 1.7;
    margin-bottom: 24px;
    flex-grow: 1;
}
.footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
    color: #94A3B8;
}
.footer-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.text-closed {
    color: #F87171;
    font-weight: 500;
}
.contact-list li {
    justify-content: flex-start;
    gap: 16px;
    align-items: center;
}
.contact-list li svg {
    width: 20px;
    height: 20px;
    color: var(--clinic-primary-light);
    flex-shrink: 0;
}
.social-links {
    display: flex;
    gap: 16px;
}
.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clinic-white);
    transition: all 0.3s ease;
}
.social-links a:hover {
    background: var(--clinic-primary);
    transform: translateY(-3px);
}
.social-links svg { width: 18px; height: 18px; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
    color: #94A3B8;
    font-size: 14px;
}

/* Return Banner */
.return-banner {
    background: var(--clinic-text);
    color: white;
    text-align: center;
    padding: 12px;
    font-size: 14px;
}
.return-banner a { color: var(--clinic-primary-light); text-decoration: underline; font-weight: 600; }

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-links {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 73px);
        background-color: var(--clinic-white);
        flex-direction: column;
        padding-top: 48px;
        border-top: 1px solid #E2E8F0;
        transition: left 0.3s ease;
    }
    .nav-links.active { left: 0; }
    
    .hero-content, .doctor-content, .facility-grid, .services-grid, .testimonial-grid, .footer-grid { grid-template-columns: 1fr; }
    .hero-text h1 { font-size: 40px; }
}