/* ==========================================================================
   Designers Dental Clinic (ddclinic.sa) — Modern Production Stylesheet
   Direction: RTL | Language: Arabic
   Architect: Senior Full-Stack Web Architect & Lead UI/UX Engineer
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Alexandria:wght@300;400;500;600;700;800&family=Cairo:wght@400;600;700;800&display=swap');

:root {
  /* Brand Color Palette */
  --primary-navy: #0e1e2d;
  --primary-navy-dark: #09131d;
  --primary-navy-light: #182e42;
  --primary-navy-subtle: #243d56;
  
  --gold-500: #c5a467;
  --gold-600: #b18e4e;
  --gold-400: #d8ba82;
  --gold-300: #e8d4a7;
  --gold-100: #faf6ed;
  --gold-gradient: linear-gradient(135deg, #c5a467 0%, #dfc38d 50%, #b18e4e 100%);
  
  --teal-600: #0f766e;
  --teal-500: #0d9488;
  --teal-100: #f0fdfa;
  
  /* Neutral Palette */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-muted: #f1f5f9;
  
  --text-main: #0f172a;
  --text-body: #1e293b;
  --text-muted: #334155;
  --text-subtle: #475569;
  --text-inverse: #ffffff;
  --text-inverse-muted: #cbd5e1;
  
  --border-light: #e2e8f0;
  --border-focus: #c5a467;
  
  /* Elevating Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(14, 30, 45, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(14, 30, 45, 0.08), 0 2px 4px -2px rgba(14, 30, 45, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(14, 30, 45, 0.09), 0 4px 6px -4px rgba(14, 30, 45, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(14, 30, 45, 0.12), 0 8px 10px -6px rgba(14, 30, 45, 0.06);
  --shadow-glow: 0 0 25px rgba(197, 164, 103, 0.25);
  
  /* Typography scale using fluid clamp */
  --font-family: 'Alexandria', 'Cairo', system-ui, -apple-system, sans-serif;
  --font-heading: 'Alexandria', 'Cairo', system-ui, -apple-system, sans-serif;
  
  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --fs-sm: clamp(0.875rem, 0.825rem + 0.25vw, 0.9375rem);
  --fs-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --fs-md: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --fs-lg: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --fs-2xl: clamp(1.75rem, 1.5rem + 1.25vw, 2.375rem);
  --fs-3xl: clamp(2.125rem, 1.75rem + 1.8vw, 3.125rem);
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Spacing */
  --header-height: 80px;
  --container-max: 1240px;
  --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 280ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-family);
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--text-body);
  background-color: var(--bg-page);
  direction: rtl;
  text-align: start;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fluid responsive media & zero overflow rules */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.35;
  font-weight: 700;
  overflow-wrap: break-word;
}

p {
  overflow-wrap: break-word;
  color: var(--text-muted);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.section-padding {
  padding-block: clamp(3rem, 6vw, 6rem);
}

.text-center {
  text-align: center;
}

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

/* ==========================================================================
   Header & Sticky Navigation (Fixed to top of viewport)
   ========================================================================== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(14, 30, 45, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(197, 164, 103, 0.2);
  height: var(--header-height);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

header.site-header.scrolled {
  box-shadow: 0 8px 24px rgba(9, 19, 29, 0.35);
  background-color: rgba(9, 19, 29, 0.97);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

/* Brand Logo (Starts at the right in RTL, acts as home link) */
.brand-logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  outline: none;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
}

.brand-logo-link:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 3px;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
}

/* Desktop Navigation */
.nav-desktop {
  display: none;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
    align-items: center;
  }
}

.nav-desktop-list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 2rem);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-weight: 500;
  font-size: var(--fs-sm);
  color: var(--text-inverse-muted);
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-link:hover {
  color: var(--gold-400);
}

.nav-link.active {
  color: var(--gold-400);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  inset-inline-start: 0.75rem;
  inset-inline-end: 0.75rem;
  height: 2px;
  background-color: var(--gold-500);
  border-radius: var(--radius-full);
}

/* Header CTAs */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-header-call {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(197, 164, 103, 0.3);
  color: var(--gold-400);
  font-size: var(--fs-sm);
  font-weight: 600;
  min-height: 44px;
}

@media (min-width: 640px) {
  .btn-header-call {
    display: inline-flex;
  }
}

.btn-header-call:hover {
  background-color: rgba(197, 164, 103, 0.15);
  border-color: var(--gold-500);
  color: #ffffff;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--gold-gradient);
  color: var(--primary-navy-dark);
  font-weight: 700;
  font-size: var(--fs-sm);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  min-height: 48px;
  box-shadow: 0 4px 12px rgba(197, 164, 103, 0.3);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(197, 164, 103, 0.45);
  color: #000000;
}

.btn-primary:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: transparent;
  color: #ffffff;
  font-weight: 600;
  font-size: var(--fs-sm);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

/* Mobile Hamburger Toggle */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: transparent;
  border: 1px solid rgba(197, 164, 103, 0.3);
  border-radius: var(--radius-md);
  color: #ffffff;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 992px) {
  .mobile-nav-toggle {
    display: none;
  }
}

.mobile-nav-toggle:focus-visible {
  outline: 2px solid var(--gold-500);
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  position: relative;
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.mobile-nav-toggle[aria-expanded="true"] .line-1 {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .line-2 {
  opacity: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .line-3 {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  inset-block-start: var(--header-height);
  inset-inline-start: 0;
  inset-inline-end: 0;
  bottom: 0;
  background-color: rgba(14, 30, 45, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 999;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  overflow-y: auto;
}

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

.mobile-drawer-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-size: var(--fs-md);
  font-weight: 600;
  color: #ffffff;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 48px;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background-color: rgba(197, 164, 103, 0.15);
  border-color: var(--gold-500);
  color: var(--gold-400);
}

.mobile-drawer-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 80% 20%, #1c3853 0%, var(--primary-navy) 70%, var(--primary-navy-dark) 100%);
  color: #ffffff;
  padding-block: clamp(3rem, 7vw, 6.5rem);
  overflow: hidden;
  border-bottom: 1px solid rgba(197, 164, 103, 0.2);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 10% 90%, rgba(197, 164, 103, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(197, 164, 103, 0.14);
  border: 1px solid rgba(197, 164, 103, 0.4);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  color: var(--gold-300);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.hero-title .highlight {
  color: var(--gold-400);
  display: inline-block;
}

.hero-description {
  font-size: var(--fs-md);
  color: var(--text-inverse-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

@media (min-width: 576px) {
  .hero-stats-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.hero-stat-card {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: var(--fs-xl);
  font-weight: 800;
  color: var(--gold-400);
  line-height: 1.1;
}

.stat-label {
  font-size: var(--fs-xs);
  color: var(--text-inverse-muted);
  font-weight: 500;
  margin-top: 0.25rem;
}

/* Hero Media Showcase */
.hero-media-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(197, 164, 103, 0.3);
  background-color: var(--primary-navy-light);
  aspect-ratio: 4 / 3;
}

.hero-media-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media-badge {
  position: absolute;
  bottom: 1.25rem;
  inset-inline-start: 1.25rem;
  background: rgba(14, 30, 45, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(197, 164, 103, 0.35);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #ffffff;
}

.hero-media-badge-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(197, 164, 103, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-400);
}

/* ==========================================================================
   Trust & Key Pillars Section (Why Choose Us)
   ========================================================================== */
.section-trust {
  background-color: var(--bg-surface);
  position: relative;
}

.section-header {
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-subtitle {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--gold-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.section-desc {
  font-size: var(--fs-base);
  color: var(--text-subtle);
  margin-top: 0.75rem;
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .pillars-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.pillar-card {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--gold-400);
}

.pillar-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background-color: var(--gold-100);
  border: 1px solid rgba(197, 164, 103, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-600);
  margin-bottom: 1.25rem;
}

.pillar-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: 0.875rem;
  color: var(--primary-navy);
}

.pillar-card p {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--text-subtle);
  flex-grow: 1;
}

/* ==========================================================================
   Services Grid
   ========================================================================== */
.services-section {
  background-color: var(--bg-page);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(197, 164, 103, 0.5);
}

.service-card-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.service-img-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: var(--gold-100);
  padding: 8px;
  object-fit: contain;
  flex-shrink: 0;
  border: 1px solid rgba(197, 164, 103, 0.25);
}

.service-card h3 {
  font-size: var(--fs-md);
  color: var(--primary-navy);
}

.service-card p {
  font-size: var(--fs-sm);
  color: var(--text-subtle);
  line-height: 1.75;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--gold-600);
}

.service-card-link:hover {
  color: var(--primary-navy);
}

/* ==========================================================================
   Accessible Before / After Comparison Showcase
   ========================================================================== */
.transformation-section {
  background: linear-gradient(180deg, var(--primary-navy) 0%, var(--primary-navy-dark) 100%);
  color: #ffffff;
  padding-block: clamp(3.5rem, 6vw, 6rem);
}

.transformation-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .transformation-wrapper {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.transformation-content h2 {
  color: #ffffff;
  font-size: var(--fs-2xl);
  margin-bottom: 1rem;
}

.transformation-content p {
  color: var(--text-inverse-muted);
  font-size: var(--fs-base);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.feature-check-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 2rem;
}

.feature-check-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--fs-sm);
  color: #ffffff;
}

.check-icon {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background-color: rgba(197, 164, 103, 0.25);
  color: var(--gold-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Interactive Accessible Slider Container */
.comparison-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 11;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border: 2px solid rgba(197, 164, 103, 0.4);
  touch-action: pan-y;
  background-color: #000;
  user-select: none;
}

.comparison-image-box {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.comparison-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comparison-image-before {
  z-index: 1;
}

.comparison-image-after {
  z-index: 2;
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
  transition: clip-path 50ms linear;
}

.comparison-handle-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background-color: var(--gold-400);
  z-index: 3;
  transform: translateX(-50%);
  pointer-events: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
}

.comparison-handle-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background-color: #ffffff;
  border: 2px solid var(--gold-500);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  color: var(--primary-navy);
}

.comparison-range-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 10;
  margin: 0;
  touch-action: pan-y;
}

.comparison-badge {
  position: absolute;
  bottom: 1rem;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-sm);
  background: rgba(14, 30, 45, 0.85);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: var(--fs-xs);
  font-weight: 700;
  z-index: 5;
  pointer-events: none;
}

.comparison-badge.before {
  inset-inline-start: 1rem;
}

.comparison-badge.after {
  inset-inline-end: 1rem;
  background: rgba(197, 164, 103, 0.9);
  color: var(--primary-navy-dark);
}

/* ==========================================================================
   Doctors & Medical Team Section
   ========================================================================== */
.doctors-section {
  background-color: var(--bg-surface);
}

.specialty-filter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  cursor: pointer;
  min-height: 44px;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background-color: rgba(197, 164, 103, 0.15);
  color: var(--primary-navy);
  border-color: var(--gold-400);
}

.filter-btn.active {
  background-color: var(--primary-navy);
  color: #ffffff;
  border-color: var(--primary-navy);
  box-shadow: var(--shadow-sm);
}

.doctors-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .doctors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .doctors-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .doctors-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.doctor-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.doctor-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--gold-400);
}

.doctor-image-wrapper {
  position: relative;
  aspect-ratio: 484 / 580;
  overflow: hidden;
  background-color: #e9ecef;
}

.doctor-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.doctor-card:hover .doctor-image-wrapper img {
  transform: scale(1.04);
}

.doctor-specialty-badge {
  position: absolute;
  top: 1rem;
  inset-inline-start: 1rem;
  background: rgba(14, 30, 45, 0.9);
  backdrop-filter: blur(8px);
  color: var(--gold-400);
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(197, 164, 103, 0.3);
}

.doctor-card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.doctor-name {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 0.375rem;
}

.doctor-role {
  font-size: var(--fs-sm);
  color: var(--teal-600);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.doctor-bio {
  font-size: var(--fs-xs);
  color: var(--text-subtle);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.doctor-card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.btn-doctor-whatsapp {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  background-color: var(--teal-100);
  color: var(--teal-600);
  font-size: var(--fs-xs);
  font-weight: 700;
  min-height: 42px;
  border: 1px solid rgba(13, 148, 136, 0.25);
}

.btn-doctor-whatsapp:hover {
  background-color: var(--teal-600);
  color: #ffffff;
}

.btn-doctor-details {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-muted);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 600;
  min-height: 42px;
  border: 1px solid var(--border-light);
}

.btn-doctor-details:hover {
  background-color: var(--primary-navy);
  color: #ffffff;
}

/* ==========================================================================
   Authentic Google Reviews Section
   ========================================================================== */
.reviews-section {
  background-color: var(--bg-page);
  position: relative;
}

.reviews-header-card {
  background: var(--primary-navy);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 3rem;
  border: 1px solid rgba(197, 164, 103, 0.3);
}

@media (min-width: 768px) {
  .reviews-header-card {
    flex-direction: row;
  }
}

.reviews-summary-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.rating-big-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--gold-400);
  line-height: 1;
}

.stars-rating {
  color: #fbbf24;
  font-size: 1.25rem;
  display: flex;
  gap: 2px;
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.review-card-top {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1rem;
}

.reviewer-avatar-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--gold-100);
  color: var(--gold-600);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.125rem;
  border: 1px solid rgba(197, 164, 103, 0.3);
}

.reviewer-meta {
  flex-grow: 1;
}

.reviewer-name {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--primary-navy);
}

.review-date {
  font-size: var(--fs-xs);
  color: var(--text-subtle);
}

.review-text {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--text-muted);
  flex-grow: 1;
  position: relative;
  font-style: italic;
}

.review-text::before {
  content: '“';
  font-size: 2rem;
  color: var(--gold-400);
  line-height: 0;
  vertical-align: -0.4em;
  margin-inline-end: 4px;
}

.review-doctor-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 1.25rem;
  padding: 0.25rem 0.625rem;
  background-color: var(--gold-100);
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--gold-600);
}

/* ==========================================================================
   Technology & Lab Section
   ========================================================================== */
.tech-lab-section {
  background: var(--bg-surface);
  position: relative;
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 992px) {
  .tech-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.tech-card-group {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tech-feature-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.tech-feature-card:hover {
  border-color: var(--gold-500);
  box-shadow: var(--shadow-md);
  transform: translateX(-4px);
}

.tech-icon-circle {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background-color: var(--gold-100);
  color: var(--gold-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tech-feature-card h4 {
  font-size: var(--fs-base);
  color: var(--primary-navy);
  margin-bottom: 0.25rem;
}

.tech-feature-card p {
  font-size: var(--fs-xs);
  color: var(--text-subtle);
  line-height: 1.7;
}

/* ==========================================================================
   Comparison Tables (E.Max vs Feldspathic vs Zirconia, etc.)
   ========================================================================== */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  margin-block: 2rem;
  background: #ffffff;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: start;
  min-width: 600px;
}

.comparison-table th {
  background-color: var(--primary-navy);
  color: #ffffff;
  padding: 1.125rem 1.5rem;
  font-weight: 700;
  font-size: var(--fs-sm);
  border-bottom: 2px solid var(--gold-500);
}

.comparison-table td {
  padding: 1rem 1.5rem;
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-muted);
}

.comparison-table tbody tr:nth-child(even) {
  background-color: var(--bg-muted);
}

.comparison-table tbody tr:hover {
  background-color: rgba(197, 164, 103, 0.08);
}

.table-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 700;
}

.table-tag-gold {
  background-color: var(--gold-100);
  color: var(--gold-600);
}

.table-tag-teal {
  background-color: var(--teal-100);
  color: var(--teal-600);
}

/* ==========================================================================
   Accessible Accordion & FAQs
   ========================================================================== */
.faq-container {
  max-width: 860px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.faq-item:hover, .faq-item.active {
  border-color: var(--gold-400);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: start;
  gap: 1rem;
  min-height: 52px;
}

.faq-trigger:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}

.faq-question-text {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.4;
}

.faq-chevron {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background-color: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-navy);
  flex-shrink: 0;
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.faq-trigger[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
  background-color: var(--gold-500);
  color: #ffffff;
}

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out, padding var(--transition-normal);
  background-color: #fafbfc;
}

.faq-panel-inner {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--text-muted);
  border-top: 1px dashed var(--border-light);
  padding-top: 1.25rem;
}

/* ==========================================================================
   Appointment Booking & Consultation Form Section
   ========================================================================== */
.booking-section {
  background: linear-gradient(135deg, var(--primary-navy-dark) 0%, var(--primary-navy) 100%);
  color: #ffffff;
  position: relative;
}

.booking-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(197, 164, 103, 0.35);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: clamp(2rem, 5vw, 3.5rem);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.booking-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .booking-grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 3.5rem;
  }
}

.booking-form-wrap h2 {
  color: #ffffff;
  font-size: var(--fs-2xl);
  margin-bottom: 0.75rem;
}

.booking-form-wrap p {
  color: var(--text-inverse-muted);
  font-size: var(--fs-sm);
  margin-bottom: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: var(--fs-sm);
  min-height: 48px;
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--gold-400);
  background-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(197, 164, 103, 0.25);
}

.form-control option {
  background-color: var(--primary-navy);
  color: #ffffff;
}

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

.form-feedback {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  font-size: var(--fs-sm);
  font-weight: 600;
}

.form-feedback.success {
  display: block;
  background-color: rgba(13, 148, 136, 0.2);
  border: 1px solid var(--teal-500);
  color: #2dd4bf;
}

/* Contact Info Aside inside Booking */
.booking-info-aside {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  justify-content: center;
  padding: 1.5rem;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.info-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(197, 164, 103, 0.2);
  color: var(--gold-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-content h4 {
  font-size: var(--fs-sm);
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.info-content p, .info-content a {
  font-size: var(--fs-xs);
  color: var(--text-inverse-muted);
  line-height: 1.6;
}

.info-content a:hover {
  color: var(--gold-400);
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer.site-footer {
  background-color: var(--primary-navy-dark);
  color: #ffffff;
  border-top: 1px solid rgba(197, 164, 103, 0.25);
  padding-top: clamp(3rem, 6vw, 5rem);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 576px) {
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-top-grid {
    grid-template-columns: 1.4fr 0.8fr 1fr 1.2fr;
    gap: 3rem;
  }
}

.footer-brand p {
  color: var(--text-inverse-muted);
  font-size: var(--fs-sm);
  line-height: 1.8;
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-icon-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: all var(--transition-fast);
}

.social-icon-link:hover {
  background-color: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--primary-navy-dark);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: var(--gold-400);
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  inset-inline-start: 0;
  width: 32px;
  height: 2px;
  background-color: var(--gold-500);
  border-radius: var(--radius-full);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-inverse-muted);
  font-size: var(--fs-sm);
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--gold-400);
  transform: translateX(-4px);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text-inverse-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--gold-400);
}

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

.footer-bottom-bar {
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--text-inverse-muted);
}

@media (min-width: 768px) {
  .footer-bottom-bar {
    flex-direction: row;
    text-align: start;
  }
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.footer-cert-badge {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(197, 164, 103, 0.3);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  color: var(--gold-300);
  font-size: 0.75rem;
}

/* ==========================================================================
   Back-to-top button
   ========================================================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: var(--gold-gradient);
  color: var(--primary-navy-dark);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-fast);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(197, 164, 103, 0.5);
}

.back-to-top:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
}

/* ==========================================================================
   Floating WhatsApp Action Button
   ========================================================================== */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  z-index: 990;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-whatsapp-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

.floating-whatsapp-btn:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

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