:root {
  /* Color Palette - Brand Manual */
  --color-primary: #3E5467;
  /* Dark Slate Blue from Manual */
  --color-primary-dark: #2c3e4d;
  --color-secondary: #8DA399;
  /* Keeping sage as secondary/complementary */
  --color-accent: #D4AF37;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F4F6F8;
  /* Light blue-grey tint */
  --color-text: #3E5467;
  /* Text in brand color */
  --color-text-light: #607d8b;

  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Titillium Web', sans-serif;
  --font-script: 'Great Vibes', cursive;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  /* High contrast white */
  font-weight: 700;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: #000000;
  /* Black text for max contrast */
  font-weight: 700;
}

.btn-secondary:hover {
  background-color: #7a8f86;
  /* Slightly darker sage */
}

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section {
  padding: var(--spacing-xl) 0;
}

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

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

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo img {
  height: 50px;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-links a {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-primary);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Fix for Button in Nav - Override default nav link color */
.nav-links .btn {
  color: #FFFFFF !important;
}

.nav-links .btn::after {
  display: none;
  /* Remove underline effect from button */
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--color-text);
}

/* Hero Section */
.hero {
  position: relative;
  height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(62, 84, 103, 0.4), rgba(62, 84, 103, 0.4)), url('../assets/images/hero.png');
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  margin-top: 80px;
}

.hero-content {
  background: rgba(237, 241, 244, 0.31);
  /* Proper contrast on hero */
  backdrop-filter: blur(5px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 650px;
  animation: fadeIn 1s ease-out;
}

.hero h1 {
  font-size: 3rem;
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  color: #f0f0f0;
}

/* Features/Services Preview */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.feature-card {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

/* About Preview */
.about-preview {
  background-color: var(--color-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

/* Doctor Section */
.doctor-section {
  text-align: center;
}

.doctor-card {
  display: inline-block;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  max-width: 400px;
}

.doctor-card img {
  width: 100%;
  height: auto;
}

.doctor-info {
  padding: var(--spacing-md);
}

.doctor-crm {
  color: var(--color-primary);
  /* Better contrast */
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

/* CTA Section */
.cta-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
}

/* Footer */
footer {
  background-color: var(--color-primary);
  /* Brand blue */
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

footer p,
footer h3,
footer li,
footer a {
  color: #FFFFFF;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  text-decoration: none;
  font-weight: 500;
  color: #FFFFFF;
}

.footer-links a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.9rem;
  color: #FFFFFF;
}

.footer-bottom p {
  color: #FFFFFF;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  z-index: 2000;
  transition: var(--transition);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background-color: #20BA56;
}

/* Keyframes */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Reveal Utilities */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

/* Glassmorphism Utilities */
.glass-effect {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.feature-card,
.doctor-card,
.contact-info-card,
.contact-form {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* Header Glassmorphism Refinement */
header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

/* HIGH CONTRAST & ACCESSIBILITY FIXES (Proper Specificity) */

/* Footer Typography */
.footer-col h3,
.footer-bottom p,
.footer-links li {
  color: #FFFFFF;
}

/* Footer Links - Bright White default, Sage Green hover */
.footer-links a {
  color: #FFFFFF;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* Button Contrast Overrides */
/* Primary: Dark Bg + White Text */
.btn-primary {
  color: #FFFFFF;
  background-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
}

/* Secondary: Sage Bg + Black Text */
.btn-secondary {
  color: #000000;
  background-color: var(--color-secondary);
}

/* CTA Outline/White Button: White Bg + Dark Text */
.cta-section .btn {
  background-color: #FFFFFF;
  color: var(--color-primary);
  font-weight: 800;
}

.cta-section .btn:hover {
  background-color: #f0f0f0;
  color: var(--color-primary-dark);
}