/* 
  Dentistku Stylesheet V2
  Aesthetic: Premium Sunset & Sage (Terracotta, Blush, Sage Green)
  Features: 3D scroll effects, Parallax, Modals
*/

:root {
    /* Sunset & Sage Palette */
    --clr-charcoal: #2B2B2B;
    --clr-charcoal-light: #5A5A5A;
    --clr-offwhite: #FDF9F5;
    --clr-white: #FFFFFF;
    
    --clr-terracotta: #C86B5A;
    --clr-terracotta-hover: #A85647;
    --clr-blush: #FDF4EE;
    --clr-sage: #9BB098;
    --clr-sage-light: #E8EFE7;

    /* Typography */
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

    /* Layout */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    --border-radius: 1.5rem;
    --border-radius-sm: 0.75rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    font-family: var(--font-sans);
    background-color: var(--clr-offwhite);
    color: var(--clr-charcoal);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); line-height: 1.2; color: var(--clr-charcoal); }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-lg); }
.text-center { text-align: center; }
.text-terracotta { color: var(--clr-terracotta); }
.text-white { color: var(--clr-white); }
.text-charcoal { color: var(--clr-charcoal); }
.bg-sage-light { background-color: var(--clr-sage-light); }
.bg-blush { background-color: var(--clr-blush); }
.mt-4 { margin-top: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.image-rounded { border-radius: var(--border-radius); overflow: hidden; }
.shadow-large { box-shadow: 0 20px 40px rgba(0,0,0,0.08); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
}

.btn-primary { background-color: var(--clr-terracotta); color: var(--clr-white); }
.btn-primary:hover { background-color: var(--clr-terracotta-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(200, 107, 90, 0.3); }

.btn-secondary { background-color: var(--clr-white); color: var(--clr-charcoal); box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
.btn-secondary:hover { box-shadow: 0 6px 15px rgba(0,0,0,0.1); transform: translateY(-2px); }

.btn-white { background-color: var(--clr-white); color: var(--clr-terracotta); }
.btn-white:hover { background-color: var(--clr-offwhite); transform: translateY(-2px); }

.btn-large { padding: 1rem 2rem; font-size: 1.125rem; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%; z-index: 100;
    background: rgba(253, 249, 245, 0.85);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-container {
    display: flex; justify-content: space-between; align-items: center;
    height: 5rem; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-lg);
}

.nav-logo { font-family: var(--font-serif); font-weight: 700; font-size: 1.5rem; letter-spacing: -0.5px; }

.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-weight: 500; font-size: 0.95rem; transition: color 0.3s ease; }
.nav-links a:hover { color: var(--clr-terracotta); }

/* Mobile Menu */
.mobile-menu-btn {
    display: none; flex-direction: column; justify-content: space-around;
    width: 30px; height: 20px; background: transparent; border: none; cursor: pointer; z-index: 101;
}
.mobile-menu-btn span { width: 30px; height: 2px; background: var(--clr-charcoal); transition: all 0.3s linear; }

.mobile-menu {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: var(--clr-offwhite); display: flex; flex-direction: column;
    justify-content: center; align-items: center; gap: 2rem; z-index: 99;
    transform: translateY(-100%); transition: transform 0.4s ease-in-out;
}
.mobile-menu.active { transform: translateY(0); }
.mobile-link { font-family: var(--font-serif); font-size: 2rem; font-weight: 500; }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .navbar .btn-primary { display: none; }
    .mobile-menu-btn { display: flex; }
}

/* Hero Section (Parallax) */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding-top: 5rem; overflow: hidden;
}

.hero-bg {
    position: absolute; top: -10%; left: 0; width: 100%; height: 120%; z-index: -1;
    /* Will be translated by JS for parallax */
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }

.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(253,249,245,0.3) 0%, rgba(253,249,245,0.85) 80%, rgba(253,249,245,1) 100%);
}

.hero-content {
    position: relative; z-index: 1; text-align: center; max-width: 800px; padding: 0 var(--spacing-lg);
    transform-style: preserve-3d;
}

.hero-title { font-size: clamp(3rem, 6vw, 5rem); margin-bottom: var(--spacing-md); letter-spacing: -1px; }
.hero-subtitle {
    font-size: 1.25rem; color: var(--clr-charcoal-light); margin-bottom: var(--spacing-lg);
    max-width: 600px; margin-left: auto; margin-right: auto;
}
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Difference Section */
.difference { padding: var(--spacing-xxl) 0; }
.difference-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); align-items: center; }
.section-title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: var(--spacing-lg); }

.difference-text p { font-size: 1.125rem; margin-bottom: var(--spacing-md); color: var(--clr-charcoal-light); }
.feature-list { list-style: none; margin-top: var(--spacing-lg); }
.feature-list li { font-size: 1.125rem; margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.5rem; }
.feature-list .check { color: var(--clr-terracotta); font-weight: bold; }

@media (max-width: 768px) {
    .difference-grid { grid-template-columns: 1fr; }
    .difference-text { order: 2; }
    .difference-image { order: 1; margin-bottom: var(--spacing-lg); }
}

/* =====================
   Doctors Section
   ===================== */
.doctors-section { padding: var(--spacing-xxl) 0; }

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    text-align: left;
}

.doctor-card {
    background: var(--clr-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.35s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.35s ease;
}
.doctor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(200, 107, 90, 0.12);
}

.doctor-img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
}
.doctor-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.5s ease;
}
.doctor-card:hover .doctor-img-wrap img {
    transform: scale(1.04);
}

.doctor-tag {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(200, 107, 90, 0.9);
    color: var(--clr-white);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: 2rem;
    backdrop-filter: blur(4px);
}

.doctor-info {
    padding: 1.5rem;
}

.doctor-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.3rem;
    color: var(--clr-charcoal);
}

.doctor-spec {
    font-size: 0.85rem;
    color: var(--clr-terracotta);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.doctor-bio {
    font-size: 0.9rem;
    color: var(--clr-charcoal-light);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.doctor-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.doctor-badges span {
    background: var(--clr-blush);
    color: var(--clr-terracotta);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.65rem;
    border-radius: 2rem;
    border: 1px solid rgba(200,107,90,0.15);
}

@media (max-width: 1024px) {
    .doctors-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .doctors-grid { grid-template-columns: 1fr; }
}


/* Services Grid (3D Cards) */
.services { padding: var(--spacing-xxl) 0; }
.section-subtitle { font-size: 1.125rem; color: var(--clr-charcoal-light); margin-bottom: var(--spacing-xl); }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--spacing-lg); perspective: 1000px; }

.service-card {
    background: var(--clr-white); padding: 2rem; border-radius: var(--border-radius);
    transition: transform 0.1s ease-out, box-shadow 0.3s ease;
    transform-style: preserve-3d; cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    display: block; /* since it will be a link */
}

.service-card:hover { box-shadow: 0 20px 40px rgba(200, 107, 90, 0.1); }

.service-icon {
    font-size: 2rem; margin-bottom: 1rem; background: var(--clr-blush); width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center; border-radius: 50%;
    transform: translateZ(30px); /* 3D pop effect */
}

.service-card h3 { font-family: var(--font-sans); font-size: 1.25rem; margin-bottom: 0.5rem; transform: translateZ(20px); }
.service-card p { color: var(--clr-charcoal-light); font-size: 0.95rem; margin-bottom: 1rem; transform: translateZ(10px); }
.service-price { font-weight: 600; color: var(--clr-terracotta); font-size: 0.95rem; transform: translateZ(20px); }

/* Testimonials */
.testimonials { padding: var(--spacing-xxl) 0; background-color: var(--clr-sage-light); }
.testimonial-card { max-width: 700px; margin: 0 auto; }
.stars { color: var(--clr-terracotta); font-size: 1.5rem; margin-bottom: 1rem; }
.quote { font-family: var(--font-serif); font-size: 1.5rem; font-style: italic; margin-bottom: 1rem; }
.author { font-weight: 600; color: var(--clr-charcoal-light); }

/* CTA Banner */
.cta-banner {
    padding: var(--spacing-xxl) 0; background-color: var(--clr-sage); margin: 0 var(--spacing-lg);
    border-radius: var(--border-radius); margin-bottom: var(--spacing-xxl); position: relative; overflow: hidden;
}

/* Footer */
.footer { background-color: var(--clr-white); padding: var(--spacing-xxl) 0 var(--spacing-lg); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--spacing-xl); margin-bottom: var(--spacing-xl); }
.footer-logo { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; display: block; margin-bottom: 1rem; }
.footer-brand p { color: var(--clr-charcoal-light); max-width: 300px; }
.footer-links h4, .footer-contact h4 { font-family: var(--font-sans); margin-bottom: 1rem; font-size: 1rem; }
.footer-links a, .footer-contact p { display: block; color: var(--clr-charcoal-light); margin-bottom: 0.5rem; font-size: 0.95rem; }
.footer-links a:hover { color: var(--clr-terracotta); }
.footer-link-highlight { display: inline-block; margin-top: 1rem; font-weight: 600; color: var(--clr-terracotta); border-bottom: 1px solid var(--clr-terracotta); }
.footer-bottom { border-top: 1px solid rgba(0,0,0,0.05); padding-top: var(--spacing-lg); text-align: center; color: var(--clr-charcoal-light); font-size: 0.875rem; }

@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; } }

/* Scroll Animations */
.section-reveal { opacity: 0; transform: translateY(40px) scale(0.98); transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }
.section-reveal.visible { opacity: 1; transform: translateY(0) scale(1); }

/* Floating WhatsApp Button */
.floating-wa {
    position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px;
    background-color: #25D366; color: white; border-radius: 50%;
    display: flex; justify-content: center; align-items: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    z-index: 1000; transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.floating-wa:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4); }
.floating-wa svg { width: 35px; height: 35px; fill: currentColor; }

/* Booking Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(5px);
    display: flex; justify-content: center; align-items: center;
    z-index: 2000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal-content {
    background: var(--clr-white); width: 100%; max-width: 500px;
    border-radius: var(--border-radius); padding: 2.5rem;
    position: relative; transform: translateY(30px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.modal-overlay.active .modal-content { transform: translateY(0) scale(1); }

.modal-close {
    position: absolute; top: 1.5rem; right: 1.5rem;
    background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--clr-charcoal-light);
}

.modal-content h2 { margin-bottom: 1.5rem; font-size: 1.75rem; }

.form-group { margin-bottom: 1.5rem; text-align: left; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.95rem; }
.form-control {
    width: 100%; padding: 0.75rem 1rem; border: 1px solid #E2E8F0;
    border-radius: var(--border-radius-sm); font-family: var(--font-sans); font-size: 1rem;
    transition: border-color 0.3s;
}
.form-control:focus { outline: none; border-color: var(--clr-terracotta); }
.modal-content .btn { width: 100%; margin-top: 1rem; }

/* Service Details Page Specifics */
.service-hero {
    padding: 8rem 0 4rem; background: var(--clr-blush); text-align: center;
}

.service-details-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl);
    padding: var(--spacing-xxl) 0; align-items: center;
}

.accordion-item { border-bottom: 1px solid #E2E8F0; padding: 1rem 0; }
.accordion-header {
    display: flex; justify-content: space-between; align-items: center;
    cursor: pointer; font-weight: 600; font-size: 1.125rem; user-select: none;
}
.accordion-content {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; color: var(--clr-charcoal-light);
}
.accordion-item.active .accordion-content { max-height: 200px; margin-top: 1rem; }
.accordion-item.active .accordion-icon { transform: rotate(45deg); }
.accordion-icon { transition: transform 0.3s ease; font-size: 1.5rem; color: var(--clr-terracotta); }

/* GIF Mimic Animation */
.animated-graphic {
    animation: float 4s ease-in-out infinite;
}
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@media (max-width: 768px) {
    .service-details-grid { grid-template-columns: 1fr; }
}