/* styles.css - Lung Transplant Programme Kerala Landing Page Styles */

/* ==========================================================================
   1. Design System & Custom Properties (Material 3 Expressive 2026)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+Malayalam:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Brand Palette */
  --primary-base: #065370;
  --secondary-base: #087FA3;
  --accent-base: #EBF5F8;
  --success-base: #10B981;
  --gradient-base: linear-gradient(135deg, #065370 0%, #087FA3 100%);
  
  /* Font Families */
  --font-en: 'Outfit', sans-serif;
  --font-ml: 'Noto Sans Malayalam', sans-serif;
  --font-family: var(--font-en);

  /* Light Theme Tokens */
  --bg-color: #F8F3F0;
  --surface-color: #FFFFFF;
  --surface-hover: #F1EFEA;
  --text-color: #0F172A;
  --text-muted: #475569;
  --border-color: rgba(6, 83, 112, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  --shadow-color: rgba(15, 23, 42, 0.05);
  --shadow-hover: rgba(15, 23, 42, 0.1);
  --card-glow: rgba(6, 83, 112, 0.03);
  --accent-glow: rgba(6, 83, 112, 0.1);
  --scroll-bar-color: rgba(6, 83, 112, 0.2);

  /* Elevation (Material 3) */
  --elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.05), 0px 1px 2px 0px rgba(0, 0, 0, 0.03);
  --elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.06), 0px 1px 2px 0px rgba(0, 0, 0, 0.04);
  --elevation-3: 0px 4px 12px 4px rgba(0, 0, 0, 0.08), 0px 2px 4px 0px rgba(0, 0, 0, 0.05);
  --elevation-4: 0px 8px 24px 8px rgba(0, 0, 0, 0.1), 0px 4px 8px 0px rgba(0, 0, 0, 0.06);

  /* Spring transitions for Apple-level smoothness */
  --transition-spring-fast: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --transition-spring-slow: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.15);
  --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-smooth-fast: all 0.2s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Dark Theme Tokens override */
[data-theme="dark"] {
  --bg-color: #090D1A;
  --surface-color: #121829;
  --surface-hover: #1E2638;
  --text-color: #E2E8F0;
  --text-muted: #94A3B8;
  --border-color: rgba(8, 127, 163, 0.15);
  --glass-bg: rgba(18, 24, 41, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.4);
  --shadow-hover: rgba(0, 0, 0, 0.6);
  --card-glow: rgba(8, 127, 163, 0.05);
  --accent-glow: rgba(8, 127, 163, 0.2);
  --scroll-bar-color: rgba(8, 127, 163, 0.4);
}

/* Language font assignments */
[lang="ml"] {
  --font-family: var(--font-ml);
  font-size: 94%; /* Scale down root font size slightly to account for Malayalam character width */
}

/* Adjust navbar menu spacing in Malayalam to prevent overlap */
[lang="ml"] .navbar-menu {
  gap: 6px;
  margin-right: 24px;
}

[lang="ml"] .navbar-menu li a {
  padding: 6px 12px;
  font-size: 0.9rem;
}

/* ==========================================================================
   2. Reset & Core Page Layout
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--scroll-bar-color);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-base);
}

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

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
}

ul {
  list-style: none;
}

/* Background Mesh & Particles Canvas */
.mesh-gradient-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.mesh-gradient {
  position: absolute;
  top: -20%;
  left: -20%;
  width: 140%;
  height: 140%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(6, 83, 112, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(8, 127, 163, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 40% 80%, rgba(235, 245, 248, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(6, 83, 112, 0.08) 0%, transparent 40%);
  filter: blur(80px);
  animation: meshFlow 25s infinite alternate ease-in-out;
}

[data-theme="dark"] .mesh-gradient {
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(6, 83, 112, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(8, 127, 163, 0.2) 0%, transparent 45%),
    radial-gradient(circle at 40% 80%, rgba(26, 42, 100, 0.4) 0%, transparent 50%);
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.8;
}

/* ==========================================================================
   3. Floating Pill Navbar
   ========================================================================== */
.navbar-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  box-shadow: none;
  transition: transform 0.3s ease, background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
  padding: 26px 40px;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  transition: padding 0.4s ease;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.5px;
  color: var(--primary-base);
  cursor: pointer;
  justify-self: start;
  line-height: 1;
}
.navbar-logo span {
  display: inline-flex;
  align-items: center;
}

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary-base);
}
.logo-icon i {
  display: inline-block;
}
@keyframes logoHeartBeat {
  0% { transform: scale(1); }
  14% { transform: scale(1.22); }
  28% { transform: scale(1); }
  42% { transform: scale(1.22); }
  70% { transform: scale(1); }
  100% { transform: scale(1); }
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  margin-right: 32px;
}

.navbar-menu li a {
  padding: 8px 16px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-color);
  border-radius: 12px;
  transition: var(--transition-spring-fast);
  line-height: 1;
  display: inline-flex;
  align-items: center;
}

.navbar-menu li a:hover,
.navbar-menu li a.active {
  background: var(--surface-hover);
  color: var(--text-color);
}

[data-theme="dark"] .navbar-menu li a:hover,
[data-theme="dark"] .navbar-menu li a.active {
  background: var(--surface-hover);
  color: var(--text-color);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Full Width Scrolled State */
.navbar-wrapper.scrolled {
  background: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--elevation-2);
}

.navbar-wrapper.scrolled .navbar-container {
  padding: 16px 40px;
  background: transparent;
  border: none;
  box-shadow: none;
}

/* Hide Navbar when scrolling down */
.navbar-wrapper.nav-hidden {
  transform: translateY(-100%);
}

/* Interactive Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-weight: 600;
  border-radius: 16px;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-spring-fast);
  gap: 8px;
}

.btn-primary {
  background: var(--gradient-base);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(6, 83, 112, 0.25);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.25), transparent);
  transform: skewX(-20deg);
  transition: 0.75s;
  pointer-events: none;
}

.btn-primary:hover::after {
  left: 120%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 83, 112, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--accent-base);
  color: var(--primary-base);
  border: 1px solid rgba(6, 83, 112, 0.1);
}

[data-theme="dark"] .btn-secondary {
  background: rgba(8, 127, 163, 0.1);
  color: var(--secondary-base);
  border: 1px solid rgba(8, 127, 163, 0.2);
}

.btn-secondary:hover {
  background: rgba(6, 83, 112, 0.15);
  transform: translateY(-2px);
}

[data-theme="dark"] .btn-secondary:hover {
  background: rgba(8, 127, 163, 0.2);
}

.btn-pill-small {
  padding: 8px 16px;
  border-radius: 999px;
}

/* Lang and Theme switchers */
.toggle-control {
  display: flex;
  background: var(--border-color);
  padding: 4px;
  border-radius: 12px;
  align-items: center;
  position: relative;
}

.toggle-btn {
  background: transparent;
  border: none;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  z-index: 1;
  transition: var(--transition-smooth);
  line-height: 1;
}

.toggle-btn.active {
  background: var(--surface-color);
  color: var(--primary-base);
  box-shadow: var(--elevation-1);
}

.theme-toggle-btn {
  background: transparent;
  border: none;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  cursor: pointer;
  background: var(--border-color);
  font-size: 1rem;
  transition: var(--transition-spring-fast);
  line-height: 1;
}

.theme-toggle-btn:hover {
  transform: scale(1.1);
  background: var(--accent-base);
  color: var(--primary-base);
}

/* Mobile Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  border: none;
  background: transparent;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background-color: var(--text-color);
  border-radius: 4px;
  transition: var(--transition-smooth);
}

/* ==========================================================================
   4. Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 40px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-tag {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-base);
  color: var(--primary-base);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(6, 83, 112, 0.1);
}

[data-theme="dark"] .hero-tag {
  background: rgba(8, 127, 163, 0.1);
  color: var(--secondary-base);
  border: 1px solid rgba(8, 127, 163, 0.15);
}

.hero-tag::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background: var(--success-base);
  border-radius: 50%;
  animation: pulseDot 1.5s infinite;
}

.hero-headline {
  font-size: clamp(2.5rem, 4.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  color: var(--text-color);
}

.hero-headline span {
  background: var(--gradient-base);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subheadline {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-centres-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .hero-centres-info {
  background: rgba(18, 24, 41, 0.3);
}

.hero-centres-info-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-base);
  letter-spacing: 1px;
}

[data-theme="dark"] .hero-centres-info-title {
  color: var(--secondary-base);
}

.hero-centres-list {
  display: flex;
  gap: 20px;
  font-weight: 600;
  font-size: 0.95rem;
}

.hero-centres-list span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-centres-list span::before {
  content: '✦';
  color: var(--secondary-base);
}

.hero-ctas {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

/* Statistics cards nested under hero bottom */
.hero-stats-wrapper {
  grid-column: 1 / -1;
  margin-top: 40px;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 20px;
  box-shadow: var(--elevation-1);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition-spring-slow);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--elevation-3);
  border-color: var(--secondary-base);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-base);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-base);
  letter-spacing: -1px;
}

[data-theme="dark"] .stat-number {
  color: var(--secondary-base);
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
}

.stat-sublabel {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stat-card.large-span {
  background: var(--gradient-base);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.stat-card.large-span::after {
  display: none;
}

.stat-card.large-span .stat-number,
.stat-card.large-span .stat-label {
  color: #FFFFFF;
}

/* Interactive SVG Lung Model */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.lung-model-wrapper {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
}

.lung-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 15px 30px rgba(6, 83, 112, 0.15));
}

[data-theme="dark"] .lung-svg {
  filter: drop-shadow(0 15px 35px rgba(8, 127, 163, 0.25));
}

.lung-lobe {
  cursor: pointer;
  transition: var(--transition-spring-fast);
  fill-opacity: 0.08;
  stroke-width: 1.5;
}

.lung-lobe:hover {
  fill-opacity: 0.2;
  filter: drop-shadow(0 0 8px var(--secondary-base));
}

.lung-hotspot {
  cursor: pointer;
}

.hotspot-circle {
  fill: var(--primary-base);
  stroke: #FFFFFF;
  stroke-width: 2px;
  transition: var(--transition-spring-fast);
}

.hotspot-pulse {
  fill: var(--secondary-base);
  opacity: 0.4;
  transform-origin: center;
  animation: hotspotPulse 2s infinite;
}

.lung-hotspot:hover .hotspot-circle {
  fill: var(--success-base);
  r: 9;
}

/* Floating info box on hovering lobes */
.lung-tooltip {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  padding: 12px 18px;
  border-radius: 16px;
  box-shadow: var(--elevation-2);
  pointer-events: none;
  opacity: 0;
  transition: var(--transition-smooth-fast);
  text-align: center;
  z-index: 10;
  width: max-content;
  max-width: 280px;
}

.lung-tooltip.active {
  opacity: 1;
  transform: translateX(-50%) translateY(10px);
}

.lung-tooltip-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--primary-base);
  margin-bottom: 4px;
}

.lung-tooltip-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   5. Section Common Styles
   ========================================================================== */
section {
  padding: 60px 40px;
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-tag {
  align-self: center;
  background: var(--accent-base);
  color: var(--primary-base);
  padding: 6px 14px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

[data-theme="dark"] .section-tag {
  background: rgba(8, 127, 163, 0.15);
  color: var(--secondary-base);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.2;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* ==========================================================================
   6. Programme Intro Section (Split Layout)
   ========================================================================== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.intro-story {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.intro-highlight {
  border-left: 4px solid var(--primary-base);
  padding-left: 20px;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-color);
}

.timeline-stats-visual {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 32px;
  box-shadow: var(--elevation-2);
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
}

.timeline-stats-visual::before {
  content: '';
  position: absolute;
  left: 60px;
  top: 60px;
  bottom: 60px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-base) 0%, var(--secondary-base) 50%, var(--border-color) 100%);
}

.timeline-item {
  display: flex;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.timeline-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-color);
  border: 3px solid var(--primary-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: var(--elevation-1);
  color: var(--primary-base);
  flex-shrink: 0;
  transition: var(--transition-spring-fast);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.15);
  background: var(--primary-base);
  color: white;
  box-shadow: 0 0 15px rgba(6, 83, 112, 0.4);
}

.timeline-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-number {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary-base);
}

[data-theme="dark"] .timeline-number {
  color: var(--secondary-base);
}

.timeline-label {
  font-size: 1.05rem;
  font-weight: 600;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   7. About Section / KIMS Milestones
   ========================================================================== */
.milestones-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1080px;
  margin: 0 auto 48px;
}

.milestone-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--elevation-2);
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-spring-slow);
}

.milestone-box:hover {
  transform: translateY(-6px);
  box-shadow: var(--elevation-3);
  border-color: var(--secondary-base);
}

.milestone-icon-wrapper {
  width: 48px;
  height: 48px;
  background: var(--accent-base);
  color: var(--primary-base);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 20px;
}

.milestone-hospital {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 24px;
}

.milestone-highlight {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.milestone-highlight .laurel-icon {
  font-size: 1.8rem;
  color: var(--primary-base);
  opacity: 0.8;
}

.milestone-num {
  font-size: 5rem;
  font-weight: 800;
  color: var(--primary-base);
  line-height: 1;
}

.milestone-highlight-first {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  height: 80px; /* match height of left number */
}

.milestone-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 8px;
}

.milestone-subtext {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Pillars grid */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto 48px;
}

.pillar-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--elevation-1);
  transition: var(--transition-spring-slow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--elevation-2);
  border-color: var(--secondary-base);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-base);
  color: var(--primary-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.pillar-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.pillar-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* Campuses contact info grid */
.campuses-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

.campus-address-card, .campus-contact-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.campus-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-base);
  display: flex;
  align-items: center;
  gap: 8px;
}

.campus-address {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.helpline-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.helpline-items a {
  color: var(--text-color);
  font-weight: 600;
}
.helpline-items a:hover {
  color: var(--primary-base);
}

/* Mobile responsive */
@media (max-width: 992px) {
  .milestones-container {
    grid-template-columns: 1fr;
    max-width: 550px;
  }
  .pillars-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
  }
  .campuses-info-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    gap: 32px;
  }
}

/* ==========================================================================
   8. Lung Transplant Journey (Flowchart)
   ========================================================================== */
/* Journey Timeline progress line and nodes */
.journey-timeline-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto 50px;
  padding: 0 40px;
}

.journey-progress-line {
  position: absolute;
  top: 68px; /* Center of the 56px circle + offset for number */
  left: 80px;
  right: 80px;
  height: 3px;
  background: var(--border-color);
  z-index: 1;
}

[data-theme="dark"] .journey-progress-line {
  background: rgba(255, 255, 255, 0.08);
}

.journey-progress-line-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: var(--gradient-base);
  transition: width 0.7s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: 0 0 8px var(--secondary-base);
}

.journey-step-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
  cursor: pointer;
  width: 130px;
}

.journey-step-number {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-muted);
  background: transparent;
  border: 1.5px solid var(--border-color);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-bottom: 12px;
  transition: var(--transition-smooth-fast);
}

.journey-step-node:hover .journey-step-number,
.journey-step-node.active .journey-step-number {
  background: transparent;
  border-color: var(--primary-base);
  color: var(--primary-base);
}

[data-theme="dark"] .journey-step-node.active .journey-step-number {
  background: transparent;
  border-color: var(--secondary-base);
  color: var(--secondary-base);
}

.journey-step-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface-color);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--text-muted);
  box-shadow: var(--elevation-1);
  transition: var(--transition-spring-fast);
}

.journey-step-node:hover .journey-step-circle,
.journey-step-node.active .journey-step-circle {
  border-color: var(--secondary-base);
  color: var(--primary-base);
  transform: translateY(-2px);
}

.journey-step-node.active .journey-step-circle {
  background: var(--primary-base);
  border-color: var(--primary-base);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(6, 83, 112, 0.35);
  transform: scale(1.1);
}

[data-theme="dark"] .journey-step-node.active .journey-step-circle {
  background: var(--gradient-base);
  border-color: var(--secondary-base);
}

.journey-step-label {
  margin-top: 12px;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-align: center;
  transition: var(--transition-smooth-fast);
}

.journey-step-node:hover .journey-step-label,
.journey-step-node.active .journey-step-label {
  color: var(--primary-base);
}

[data-theme="dark"] .journey-step-node.active .journey-step-label {
  color: var(--secondary-base);
}

/* Step Details Card (Double column) */
.journey-details-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 32px;
  padding: 48px;
  box-shadow: var(--elevation-2);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: stretch;
  max-width: 1080px;
  margin: 0 auto;
  min-height: 400px;
  transition: var(--transition-smooth);
}

.journey-details-left {
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: center;
}

.journey-details-category {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--secondary-base);
  letter-spacing: 1.5px;
}

.journey-details-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--text-color);
}

.journey-details-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.journey-key-elements-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 10px;
  color: var(--text-color);
}

.journey-key-elements-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.journey-key-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.journey-key-item i {
  color: var(--success-base);
  margin-top: 4px;
  font-size: 1.05rem;
}

.journey-details-right {
  display: flex;
  align-items: center;
  justify-content: center;
}

.journey-milestone-card {
  background: rgba(6, 83, 112, 0.02);
  border: 1.5px solid rgba(6, 83, 112, 0.08);
  border-radius: 24px;
  padding: 36px 28px;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
  justify-content: center;
  transition: var(--transition-smooth);
}
[data-theme="dark"] .journey-milestone-card {
  background: rgba(8, 127, 163, 0.04);
  border-color: rgba(8, 127, 163, 0.12);
}

.journey-milestone-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  background: rgba(6, 83, 112, 0.08);
  color: var(--primary-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: var(--elevation-1);
}

[data-theme="dark"] .journey-milestone-icon-box {
  background: rgba(8, 127, 163, 0.15);
  color: var(--secondary-base);
}

.journey-milestone-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-color);
}

.journey-milestone-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 260px;
}

.journey-milestone-btn {
  background: var(--gradient-base);
  color: #FFFFFF;
  border: none;
  padding: 14px 28px;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 99px;
  cursor: pointer;
  transition: var(--transition-spring-fast);
  box-shadow: 0 4px 15px rgba(6, 83, 112, 0.2);
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.journey-milestone-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 83, 112, 0.35);
}

/* Responsiveness for Journey timeline */
@media (max-width: 992px) {
  .journey-details-card {
    grid-template-columns: 1fr;
    padding: 32px;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .journey-timeline-header {
    padding: 0 10px;
    gap: 0;
  }
  .journey-step-node {
    width: 80px;
  }
  .journey-step-circle {
    width: 44px;
    height: 44px;
    font-size: 1.05rem;
  }
  .journey-progress-line {
    top: 36px;
    left: 40px;
    right: 40px;
  }
  .journey-step-label {
    font-size: 0.72rem;
    letter-spacing: 0.2px;
  }
}

@media (max-width: 480px) {
  .journey-timeline-header {
    padding: 0 5px;
  }
  .journey-step-node {
    width: 70px;
  }
  .journey-step-circle {
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }
  .journey-progress-line {
    top: 33px;
    left: 35px;
    right: 35px;
  }
  .journey-step-label {
    font-size: 0.65rem;
  }
}

/* ==========================================================================
   9. Programme Banner
   ========================================================================== */
.programme-banner {
  padding: 60px 40px;
}

.banner-card {
  background: linear-gradient(135deg, #005FA6 0%, #007CC0 50%, #004C80 100%);
  border-radius: 40px;
  padding: 60px;
  text-align: center;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  box-shadow: var(--elevation-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.banner-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 20%, rgba(227, 27, 35, 0.25) 0%, transparent 45%);
  pointer-events: none;
}

.banner-tag {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  letter-spacing: 1px;
}

.banner-title {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  max-width: 800px;
  z-index: 1;
}

.banner-hospital-title {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 500;
  opacity: 0.9;
  max-width: 600px;
  z-index: 1;
}

.banner-glow {
  position: absolute;
  width: 250px;
  height: 250px;
  background: #007CC0;
  filter: blur(100px);
  opacity: 0.35;
  animation: glowFloat 12s infinite alternate ease-in-out;
}

/* ==========================================================================
   10. Centres Section (3D hover cards + Kerala Map)
   ========================================================================== */
.centres-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.centres-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.centre-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 20px;
  box-shadow: var(--elevation-1);
  cursor: pointer;
  transition: var(--transition-spring-slow);
  display: flex;
  gap: 20px;
  position: relative;
}

.centre-card::before {
  content: '';
  position: absolute;
  right: 20px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border-color);
  transition: var(--transition-spring-fast);
}

.centre-card.active::before {
  background: var(--success-base);
  box-shadow: 0 0 10px var(--success-base);
}

.centre-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--elevation-2);
  border-color: var(--secondary-base);
}

.centre-card.active {
  border-color: var(--primary-base);
  box-shadow: var(--elevation-3);
  background: var(--surface-hover);
}

.centre-icon-box {
  width: 44px;
  height: 44px;
  background: var(--accent-base);
  color: var(--primary-base);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

[data-theme="dark"] .centre-icon-box {
  background: rgba(8, 127, 163, 0.15);
  color: var(--secondary-base);
}

.centre-card-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.centre-name {
  font-size: 1.2rem;
  font-weight: 700;
}

.centre-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.centre-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.feature-tag {
  background: var(--border-color);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
}

.map-container {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 32px;
  padding: 40px;
  box-shadow: var(--elevation-2);
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.kerala-svg {
  height: 100%;
  width: 100%;
  max-height: 450px;
}

.map-node {
  cursor: pointer;
}

.map-node-dot {
  fill: var(--primary-base);
  stroke: #FFFFFF;
  stroke-width: 2px;
  transition: var(--transition-spring-fast);
}

.map-node-pulse {
  fill: var(--secondary-base);
  opacity: 0.35;
  transform-origin: center;
  animation: hotspotPulse 2s infinite;
}

.map-node.active .map-node-dot {
  fill: var(--success-base);
  r: 10;
}

.map-node:hover .map-node-dot {
  fill: var(--success-base);
}

/* ==========================================================================
   11. Expansion Section (South India Map)
   ========================================================================== */
.expansion-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: center;
}

.expansion-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.expansion-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.expansion-state-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 20px 24px;
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  transition: var(--transition-spring-fast);
}

.expansion-state-card:hover {
  transform: translateX(6px);
  border-color: var(--secondary-base);
  background: var(--surface-hover);
}

.arrow-icon {
  font-size: 0.95rem;
  color: var(--primary-base);
  transition: var(--transition-spring-fast);
}

.expansion-state-card:hover .arrow-icon {
  transform: translateX(4px);
}

.south-india-map-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 32px;
  padding: 30px;
  box-shadow: var(--elevation-2);
  height: 480px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.south-india-svg {
  height: 100%;
  width: 100%;
  max-height: 420px;
}

.state-path {
  fill: var(--accent-base);
  stroke: var(--border-color);
  stroke-width: 1.5;
  transition: var(--transition-smooth);
}

[data-theme="dark"] .state-path {
  fill: rgba(8, 127, 163, 0.05);
}

.state-path:hover,
.state-path.active {
  fill: rgba(6, 83, 112, 0.15);
  stroke: var(--primary-base);
}

[data-theme="dark"] .state-path:hover,
[data-theme="dark"] .state-path.active {
  fill: rgba(8, 127, 163, 0.15);
  stroke: var(--secondary-base);
}

/* ==========================================================================
   12. FAQ Section (Accordion)
   ========================================================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--elevation-1);
  transition: var(--transition-spring-fast);
}

.faq-item:hover {
  border-color: var(--secondary-base);
}

.faq-header {
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
  transition: var(--transition-smooth-fast);
  user-select: none;
}

.faq-header:hover {
  background: var(--surface-hover);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary-base);
  color: white;
  border-color: var(--primary-base);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  border-top: 1px solid transparent;
}

.faq-item.active .faq-body {
  max-height: 300px;
  border-top-color: var(--border-color);
}

.faq-content {
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* ==========================================================================
   13. Contact Section (Form + Info)
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: flex-start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-card-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 32px;
  border-radius: 24px;
  box-shadow: var(--elevation-2);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.info-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-base);
  color: var(--primary-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

[data-theme="dark"] .info-icon-box {
  background: rgba(8, 127, 163, 0.15);
  color: var(--secondary-base);
}

.info-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-title {
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.info-val {
  font-size: 1.05rem;
  font-weight: 600;
}

.contact-form-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 32px;
  box-shadow: var(--elevation-3);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  position: relative;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-color);
}

.form-control {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  padding: 14px 18px;
  border-radius: 12px;
  transition: var(--transition-spring-fast);
  color: var(--text-color);
}

.form-control:focus {
  border-color: var(--primary-base);
  background: var(--surface-color);
  box-shadow: 0 0 0 4px var(--accent-base);
}

[data-theme="dark"] .form-control:focus {
  box-shadow: 0 0 0 4px rgba(8, 127, 163, 0.15);
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23065370' 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 16px center;
  background-size: 16px;
  padding-right: 40px;
}

/* WhatsApp quick button */
.whatsapp-btn {
  background: #25D366;
  color: white;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.25);
  width: 100%;
  margin-top: 12px;
}

.whatsapp-btn:hover {
  background: #20BA5A;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
  transform: translateY(-2px);
}

/* ==========================================================================
   14. Footer
   ========================================================================== */
.footer {
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: 80px 40px 40px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  max-width: 1320px;
  margin: 0 auto 60px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 320px;
}

.footer-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition-spring-fast);
}

.social-icon:hover {
  background: var(--primary-base);
  color: white;
  transform: scale(1.1);
}

.footer-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links li a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links li a:hover {
  color: var(--primary-base);
  transform: translateX(4px);
}

.footer-bottom {
  max-width: 1320px;
  margin: 0 auto;
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   15. Scroll Reveal States & Keyframe Animations
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* Keyframes */
@keyframes meshFlow {
  0% {
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  50% {
    transform: translate(5%, 10%) scale(1.1) rotate(180deg);
  }
  100% {
    transform: translate(-5%, -5%) scale(0.9) rotate(360deg);
  }
}

@keyframes pulseDot {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes hotspotPulse {
  0% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

@keyframes glowFloat {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(40px, -30px) scale(1.2);
  }
}

/* ==========================================================================
   16. Media Queries & Responsive Layouts
   ========================================================================== */
@media (max-width: 1200px) {
  .hero-grid {
    gap: 40px;
  }
  .centres-grid, .intro-grid, .expansion-grid, .contact-grid {
    gap: 40px;
  }
}

@media (max-width: 992px) {
  /* Navbar adjustments */
  .navbar-menu {
    display: none; /* Hide standard menu, show side menu */
  }
  
  .navbar-container,
  .navbar-wrapper.scrolled .navbar-container {
    display: flex;
    justify-content: space-between;
    padding: 14px 20px;
  }
  
  .hamburger {
    display: flex;
  }

  .navbar-actions {
    gap: 12px;
  }

  /* Grid adaptations to single column */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-tag {
    align-self: center;
  }

  .hero-centres-list {
    justify-content: center;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-visual {
    order: -1; /* Put lungs above headline on smaller screens */
    margin-bottom: 20px;
  }

  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-grid {
    grid-template-columns: 1fr;
  }

  .timeline-stats-visual {
    max-width: 550px;
    margin: 0 auto;
  }

  .awareness-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .centres-grid {
    grid-template-columns: 1fr;
  }

  .map-container {
    order: -1;
    height: 400px;
  }

  .expansion-grid {
    grid-template-columns: 1fr;
  }

  .south-india-map-box {
    order: -1;
    height: 400px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-info {
    order: 1;
  }

  /* Flow chart timeline details */
  .journey-flow-desktop {
    display: none;
  }
  .journey-flow-mobile {
    display: flex;
  }
  .journey-details-panel {
    display: none;
  }
}

@media (max-width: 768px) {
  section {
    padding: 40px 20px;
  }

  .hero-section {
    padding: 100px 20px 40px;
  }

  .hero-stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stat-card.large-span {
    grid-column: span 1;
  }

  .awareness-grid {
    grid-template-columns: 1fr;
  }

  .form-group-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* Mobile Side Navigation Menu */
.mobile-nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--surface-color);
  z-index: 999;
  padding: 100px 30px 40px;
  box-shadow: -5px 0 25px var(--shadow-hover);
  display: flex;
  flex-direction: column;
  gap: 32px;
  transition: right 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  border-left: 1px solid var(--border-color);
}

.mobile-nav-menu.open {
  right: 0;
}

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-menu-list li a {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-color);
}

.mobile-menu-list li a:hover {
  color: var(--primary-base);
  padding-left: 8px;
}

/* Form Success & Error Alerts styles */
.alert {
  padding: 16px;
  border-radius: 12px;
  font-weight: 600;
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  animation: slideInDown 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success-base);
}

@keyframes slideInDown {
  0% {
    transform: translateY(-10px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}