/* Base Variables & Theme */
:root {
  /* Color Palette - Health, Medicine, Wellness */
  --color-primary: #1d4ed8;       /* Trustworthy Blue */
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1e3a8a;
  
  --color-secondary: #0ea5e9;     /* Vibrant Sky Blue */
  --color-accent: #10b981;        /* Wellness Green */
  
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-alt: #f1f5f9;
  
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-text-inverse: #ffffff;
  
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-error: #ef4444;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7vw + 0.6rem, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8vw + 0.7rem, 1rem);
  --text-base: clamp(1rem, 1vw + 0.8rem, 1.125rem);
  --text-lg: clamp(1.125rem, 1.2vw + 0.9rem, 1.25rem);
  --text-xl: clamp(1.25rem, 1.5vw + 1rem, 1.5rem);
  --text-2xl: clamp(1.5rem, 2vw + 1.2rem, 2rem);
  --text-3xl: clamp(1.875rem, 3vw + 1.5rem, 2.5rem);
  --text-4xl: clamp(2.25rem, 4vw + 1.8rem, 3.5rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Elevation/Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(29, 78, 216, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(29, 78, 216, 0.1), 0 2px 4px -2px rgba(29, 78, 216, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(29, 78, 216, 0.1), 0 4px 6px -4px rgba(29, 78, 216, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(29, 78, 216, 0.1), 0 8px 10px -6px rgba(29, 78, 216, 0.05);

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  opacity: 0;
  transition: opacity var(--transition-normal);
  padding-left: 260px; /* Space for sidebar */
}

body.loaded {
  opacity: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

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

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

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

section {
  padding: var(--space-4xl) 0;
}

.bg-surface { background-color: var(--color-surface); }
.bg-surface-alt { background-color: var(--color-surface-alt); }
.bg-primary { background-color: var(--color-primary); color: var(--color-text-inverse); }
.bg-primary h2, .bg-primary p { color: var(--color-text-inverse); }

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  transform: scale(1.03);
  filter: brightness(1.1);
  box-shadow: var(--shadow-lg);
}

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

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

/* Sidebar & Nav */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background-color: var(--color-surface);
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--space-xl) var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2xl);
}

.main-nav {
  flex-grow: 1;
  overflow-y: auto;
}

.main-nav .nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--color-text);
  font-weight: 500;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link svg {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-text-inverse);
}

.nav-link:hover svg, .nav-link.active svg {
  color: var(--color-text-inverse);
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: auto;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.sidebar-cta {
  width: 100%;
  justify-content: center;
}

/* Language Selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  background-color: var(--color-surface-alt);
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0.5rem;
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.lang-selector:hover .lang-dropdown,
.lang-selector.active .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.lang-option:hover, .lang-option.active {
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
}

/* Mobile Header (Only visible on mobile) */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
  z-index: 900;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
}

.mobile-header .logo { margin-bottom: 0; }

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  width: 24px;
  height: 24px;
  position: relative;
  z-index: 1001; /* Above sidebar */
}

.hamburger .line {
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-dark);
  left: 0;
  transition: all var(--transition-normal);
}

.hamburger .line-1 { top: 4px; }
.hamburger .line-2 { top: 11px; }
.hamburger .line-3 { top: 18px; }

.hamburger.active .line-1 { transform: rotate(45deg); top: 11px; }
.hamburger.active .line-2 { opacity: 0; }
.hamburger.active .line-3 { transform: rotate(-45deg); top: 11px; }

/* Hero */
.hero {
  padding-top: var(--space-4xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-bg) 0%, #e0e7ff 100%);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: rgba(29, 78, 216, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.hero h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
}

.hero-img svg {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0); }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  color: var(--color-primary);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
  40% { transform: translateY(-15px) translateX(-50%); }
  60% { transform: translateY(-7px) translateX(-50%); }
}

/* Internal Hero */
.hero-internal {
  padding: 100px 0 var(--space-4xl);
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  text-align: center;
}
.hero-internal h1 { color: var(--color-text-inverse); }
.hero-internal p { color: rgba(255,255,255,0.8); font-size: var(--text-lg); }

/* Breadcrumbs */
.breadcrumbs {
  margin-top: var(--space-lg);
  font-size: var(--text-sm);
}
.breadcrumbs a { color: var(--color-secondary); }
.breadcrumbs span { color: rgba(255,255,255,0.6); margin: 0 0.5rem; }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); }

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.card-icon {
  width: 64px;
  height: 64px;
  background-color: rgba(29, 78, 216, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.card h3 { margin-bottom: var(--space-sm); font-size: var(--text-xl); }
.card p { color: var(--color-text-light); margin-bottom: var(--space-md); flex-grow: 1; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

/* Stats */
.stats {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat-item { text-align: center; }
.stat-num {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-heading);
  display: flex;
  justify-content: center;
  align-items: baseline;
}
.stat-label {
  font-weight: 600;
  color: var(--color-text-light);
}

/* Testimonials */
.testimonial-card {
  padding: var(--space-xl);
  position: relative;
}
.quote-icon {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  color: rgba(29, 78, 216, 0.1);
}
.author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}
.author-info h4 { margin: 0; font-size: var(--text-base); }
.author-info p { margin: 0; font-size: var(--text-sm); color: var(--color-text-light); }

/* Blog Preview / Cards */
.blog-card {
  padding: 0;
  overflow: hidden;
}
.blog-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.blog-card:hover .blog-img {
  transform: scale(1.08);
}
.blog-content {
  padding: var(--space-lg);
}
.blog-meta {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}
.blog-tag {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  padding: 0.1rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* FAQ Accordion */
.accordion { margin-bottom: var(--space-sm); border-radius: var(--radius-md); border: 1px solid var(--color-border); overflow: hidden; }
.accordion-btn {
  width: 100%;
  text-align: left;
  padding: var(--space-md);
  background-color: var(--color-surface);
  border: none;
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-primary-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.accordion-icon {
  transition: transform var(--transition-fast);
}
.accordion-btn[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background-color: var(--color-surface);
  padding: 0 var(--space-md);
}
.accordion-content p { padding: var(--space-md) 0; }

/* Forms (Contact) */
.form-group {
  position: relative;
  margin-bottom: var(--space-xl);
}
.form-control {
  width: 100%;
  padding: 1rem 0.5rem 0.5rem;
  border: none;
  border-bottom: 2px solid var(--color-border);
  background-color: transparent;
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}
.form-control:focus {
  outline: none;
  border-bottom-color: var(--color-primary);
}
.form-label {
  position: absolute;
  top: 1rem;
  left: 0.5rem;
  color: var(--color-text-light);
  transition: all var(--transition-fast);
  pointer-events: none;
}
.form-control:focus ~ .form-label,
.form-control:not(:placeholder-shown) ~ .form-label {
  top: -0.5rem;
  font-size: var(--text-sm);
  color: var(--color-primary);
}
textarea.form-control { resize: vertical; min-height: 100px; }

.checkbox-group { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: var(--space-lg); }
.checkbox-group input { margin-top: 0.3rem; }

.toast-msg {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
  text-align: center;
  font-weight: 600;
}
.toast-success { background-color: rgba(16, 185, 129, 0.1); color: var(--color-success); }
.toast-error { background-color: rgba(239, 68, 68, 0.1); color: var(--color-error); }
.hidden { display: none !important; }

/* Legal Content */
.legal-content h2 { margin-top: var(--space-2xl); }
.legal-table { width: 100%; border-collapse: collapse; margin-top: var(--space-md); }
.legal-table th, .legal-table td { padding: var(--space-sm); border: 1px solid var(--color-border); text-align: left; }
.legal-table th { background-color: var(--color-surface-alt); }

/* Footer */
.footer {
  background-color: #0f172a;
  color: #cbd5e1;
  padding: var(--space-4xl) 0 var(--space-lg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer-title { color: white; margin-bottom: var(--space-md); }
.footer .logo { color: white; margin-bottom: var(--space-md); }
.footer-menu li { margin-bottom: var(--space-sm); }
.footer-menu a, .footer-contact-list li { color: #cbd5e1; transition: color var(--transition-fast); }
.footer-menu a:hover { color: var(--color-secondary); }
.footer-contact-list li { display: flex; gap: 0.5rem; margin-bottom: var(--space-sm); align-items: flex-start; }
.social-links { display: flex; gap: var(--space-md); margin-top: var(--space-md); }
.social-links a { color: #cbd5e1; transition: color var(--transition-fast); }
.social-links a:hover { color: var(--color-secondary); }
.newsletter-form .input-group { display: flex; gap: 0.5rem; }
.newsletter-form input { flex: 1; padding: 0.5rem; border-radius: var(--radius-sm); border: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
}
.legal-links a { color: #cbd5e1; margin-left: var(--space-md); }
.legal-links a:hover { color: white; text-decoration: underline; }

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-surface);
  box-shadow: 0 -4px 6px -1px rgba(0,0,0,0.1);
  padding: var(--space-md) 0;
  z-index: 2000;
  border-top: 1px solid var(--color-border);
}
.cookie-inner { display: flex; justify-content: space-between; align-items: center; gap: var(--space-lg); }
.cookie-actions { display: flex; gap: var(--space-sm); flex-shrink: 0; }

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 999;
  box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background-color: var(--color-primary-dark); transform: translateY(-5px); }

/* Animations & Utility Classes */
.reveal-up { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal-scale { opacity: 0; transform: scale(0.85); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal-stagger > * { opacity: 0; transform: translateY(30px); transition: all 0.6s cubic-bezier(0.5, 0, 0, 1); }

.is-visible { opacity: 1; transform: translate(0) scale(1); }
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 100ms; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 200ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 300ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 400ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 500ms; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-ctas { justify-content: center; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  body { padding-left: 0; padding-top: 70px; }
  .mobile-header { display: flex; }
  
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active { transform: translateX(0); }
  
  .lang-dropdown { position: static; box-shadow: none; border: none; opacity: 1; visibility: visible; transform: none; display: none; }
  .lang-selector.active .lang-dropdown { display: block; }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
  
  .cookie-inner { flex-direction: column; text-align: center; }
}

@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;
  }
}