:root {
  /* Brand Colors */
  --clr-bg: #FFFFFF;
  --clr-bg-alt: #F9F9FB; /* Ivory / Very Light Gray */
  --clr-primary: #1A365D; /* Navy / Medical Blue */
  --clr-primary-light: #2A4A7F;
  --clr-accent: #DC2626;  /* Red Medical Accent */
  --clr-accent-light: #EF4444;
  --clr-accent-soft: #FEE2E2;
  
  /* Text Colors */
  --clr-text-main: #1E293B; /* Slate 800 */
  --clr-text-muted: #64748B; /* Slate 500 */
  --clr-text-inverse: #FFFFFF;
  
  /* Typograpy */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout */
  --container-max: 1280px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* UI Elements */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--clr-primary);
}

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

a:hover {
  color: var(--clr-primary);
}

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

ul {
  list-style: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-bg-alt {
  background-color: var(--clr-bg-alt);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

/* Flex Utilities */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Typography Utilities */
.text-center { text-align: center; }
.text-accent { color: var(--clr-accent); }
.text-muted { color: var(--clr-text-muted); }
.text-inverse { color: var(--clr-text-inverse); }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.font-medium { font-weight: 500; }
.uppercase-nav { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem; font-weight: 600;}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
}

.btn-primary:hover {
  background-color: var(--clr-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
  color: var(--clr-text-inverse);
}

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

.btn-outline:hover {
  background-color: var(--clr-primary);
  color: var(--clr-text-inverse);
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
  padding: 15px 0;
}

.header.scrolled {
  padding: 10px 0;
  box-shadow: var(--shadow-sm);
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo span {
  color: var(--clr-accent);
}

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

.nav-link {
  color: var(--clr-text-main);
  font-weight: 500;
  position: relative;
  font-family: var(--font-heading);
}

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--clr-primary);
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding-top: 140px;
  padding-bottom: var(--spacing-xl);
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background-color: var(--clr-bg-alt);
}

.hero-content {
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.hero-slogan {
  display: inline-block;
  padding: 6px 16px;
  background-color: var(--clr-accent-soft);
  color: var(--clr-accent);
  border-radius: 30px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-sm);
  color: var(--clr-primary);
}

.hero p {
  font-size: 1.125rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--spacing-md);
  max-width: 500px;
}

.hero-image-wrapper {
  position: absolute;
  right: 0;
  top: 0;
  width: 50%;
  height: 100%;
  z-index: 1;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-bottom-left-radius: 80px;
}

.hero-image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--clr-bg-alt) 0%, rgba(249, 249, 251, 0) 100%);
}

/* Section Titles */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  max-width: 700px;
  margin-inline: auto;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-xs);
}

.section-subtitle {
  color: var(--clr-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 8px;
}

/* Cards (Specialities & Generic) */
.cards-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
  background: var(--clr-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.03);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13, 148, 136, 0.2);
}

.card-icon {
  width: 60px;
  height: 60px;
  background-color: var(--clr-bg-alt);
  color: var(--clr-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  transition: var(--transition);
}

.card:hover .card-icon {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.card-desc {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  flex-grow: 1;
}

.card-link {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--clr-primary);
  margin-top: auto;
}

.card-link svg {
  transition: var(--transition);
}

.card-link:hover {
  color: var(--clr-accent);
}

.card-link:hover svg {
  transform: translateX(5px);
}

/* Doctor Cards */
.doctor-card {
  text-align: center;
  padding: 0;
}

.doctor-img-wrap {
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
}

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

.doctor-card:hover .doctor-img-wrap img {
  transform: scale(1.05);
}

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

.doctor-name {
  font-size: 1.25rem;
  margin-bottom: 5px;
}

.doctor-spec {
  color: var(--clr-accent);
  font-weight: 500;
  font-size: 0.9rem;
}

/* Testimonials */
.testimonial-card {
  padding: var(--spacing-md);
  border-left: 4px solid var(--clr-accent);
  background: var(--clr-bg-alt);
}

.quote-icon {
  color: var(--clr-accent);
  opacity: 0.2;
  font-size: 3rem;
  margin-bottom: -15px;
}

/* Footer */
.footer {
  background-color: var(--clr-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--spacing-xl) 0 var(--spacing-sm);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  color: var(--clr-text-inverse);
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

.footer-logo span {
  color: var(--clr-accent);
}

.footer-desc {
  margin-bottom: var(--spacing-md);
  max-width: 300px;
}

.footer h4 {
  color: var(--clr-text-inverse);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
  color: var(--clr-accent);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  align-items: flex-start;
}

.footer-contact svg {
  color: var(--clr-accent);
  flex-shrink: 0;
  margin-top: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-image-wrapper {
    width: 40%;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Hide for mobile initially */
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero {
    padding-top: 120px;
  }
  .hero-image-wrapper {
    display: none;
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
    margin: 0 auto;
  }
  .hero-btns {
    justify-content: center;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

/* Tabs Layout (Tariffs) */
.tabs-layout {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.tabs-sidebar {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: sticky;
  top: 100px; /* Below sticky header */
}

.tab-btn {
  text-align: left;
  padding: 1rem 1.25rem;
  background-color: var(--clr-bg);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-text-main);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tab-btn:hover {
  border-color: rgba(13, 148, 136, 0.3);
  color: var(--clr-accent);
}

.tab-btn.active {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
  border-color: var(--clr-accent);
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.2);
}

.tabs-content-area {
  flex-grow: 1;
  background-color: var(--clr-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  border: 1px solid rgba(0,0,0,0.03);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-pane.active {
  display: block;
}

.tab-pane-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--clr-bg-alt);
}

.tariff-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.tariff-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.03);
}

.tariff-list li:last-child {
  border-bottom: none;
}

.tariff-list span {
  font-weight: 500;
  color: var(--clr-text-main);
  padding-right: 15px;
}

.tariff-list strong {
  color: var(--clr-primary);
  font-family: var(--font-heading);
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .tabs-layout {
    flex-direction: column;
  }
  .tabs-sidebar {
    width: 100%;
    position: static;
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 10px;
    -webkit-overflow-scrolling: touch;
  }
  .tab-btn {
    white-space: nowrap;
  }
  .tabs-content-area {
    padding: var(--spacing-md);
  }
}


/* Logo Image Sizing */
.nav-logo img, .footer-logo img {
  height: 36px;
  width: auto;
  border-radius: 4px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}




/* Logo Image Sizing */
.nav-logo img, .footer-logo img {
  height: 36px;
  width: auto;
  border-radius: 4px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}


/* Mobile Menu Fix */
@media (max-width: 768px) {
  .header-actions {
    display: none;
  }
  .mobile-only-btn {
    display: block !important;
  }
  .nav-links.mobile-active {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--clr-bg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    gap: var(--spacing-sm);
    border-top: 1px solid rgba(0,0,0,0.05);
  }
}