/* Base Reset & Variables */
:root {
  --primary-blue: #0A2540;
  --secondary-blue: #1C446F;
  --accent-cta: #D9381E; /* High contrast red/orange for CTAs */
  --accent-hover: #B52A15;
  --surface-white: #FFFFFF;
  --surface-light: #F4F7F9;
  --text-dark: #2A3B4C;
  --text-muted: #5C6F82;
  --border-light: #E0E7ED;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --container-width: 1200px;
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

html {
  font-family: var(--font-main);
  color: var(--text-dark);
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  background-color: var(--surface-light);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--primary-blue);
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); margin-top: 2rem; }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); margin-top: 1.5rem; }

p { margin-bottom: 1.25rem; font-size: 1.125rem; }
main ul, main ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
main li { margin-bottom: 0.5rem; }
main ul li:last-child, main ol li:last-child { margin-bottom: 0; }

a {
  color: var(--secondary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover { color: var(--accent-cta); }

/* Layout & Containers */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section { padding: 5rem 0; }
.section-light { background-color: var(--surface-white); }
.section-dark { background-color: var(--primary-blue); color: var(--surface-white); }
.section-dark > .container > h2, 
.section-dark > .container > h3, 
.section-dark > .container > p { color: var(--surface-white); }

/* Header & Navigation */
header {
  background-color: var(--surface-white);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-blue);
}

/* Desktop Nav */
.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-link {
  font-weight: 600;
  color: var(--primary-blue);
  padding: 0.5rem 0;
  display: block;
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown-toggle {
  background: none;
  border: none;
  font: inherit;
  font-weight: 600;
  color: var(--primary-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--surface-white);
  min-width: 280px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  list-style: none;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-dark);
}

.dropdown-menu a:hover {
  background-color: var(--surface-light);
  color: var(--primary-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 4px;
  font-weight: 700;
  text-align: center;
  min-height: 44px;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-cta);
  color: var(--surface-white);
}

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

.btn-light {
  background-color: var(--surface-white);
  color: var(--primary-blue);
}

.btn-light:hover {
  background-color: var(--surface-light);
  color: var(--accent-cta);
}

/* Mobile Nav Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-blue);
  cursor: pointer;
  padding: 0.5rem;
}

/* Hero Section */
.hero {
  background-color: var(--primary-blue);
  color: var(--surface-white);
  padding: 6rem 0;
  text-align: center;
}

.hero h1 { color: var(--surface-white); }
.hero p { font-size: 1.25rem; max-width: 800px; margin: 0 auto 2rem; color: #E0E7ED; }

/* Breadcrumbs */
.breadcrumbs {
  padding: 1rem 0;
  font-size: 0.875rem;
  background-color: var(--surface-white);
  border-bottom: 1px solid var(--border-light);
}
.breadcrumbs ol { list-style: none; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.breadcrumbs li { display: flex; align-items: center; gap: 0.5rem; }
.breadcrumbs li:not(:last-child)::after { content: "→"; color: var(--text-muted); }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 3rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 2rem; }

/* Cards */
.card {
  background: var(--surface-white);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  color: var(--text-dark);
}
.card h3, .card h3 a { color: var(--primary-blue); }
.card p { color: var(--text-dark); }
.section-dark .card p { color: var(--text-dark); }
.section-dark .card h3 { color: var(--primary-blue); }

/* FAQs */
.faq-item {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1.5rem;
}
.faq-item h3 { margin-top: 0; font-size: 1.25rem; }
.faq-item p:last-child { margin-bottom: 0; }

/* Footer */
footer {
  background-color: var(--primary-blue);
  color: var(--surface-white);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); gap: 3rem; margin-bottom: 3rem; }
footer h3 { color: var(--surface-white); margin-top: 0; }
footer a { color: #E0E7ED; }
footer a:hover { color: var(--surface-white); text-decoration: underline; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2rem; text-align: center; font-size: 0.875rem; color: #A0B0C0; }

/* Mobile Sticky CTA */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--accent-cta);
  padding: 1rem;
  padding-bottom: calc(1rem + var(--safe-area-bottom));
  text-align: center;
  z-index: 999;
}

.mobile-sticky-cta a {
  color: var(--surface-white);
  font-weight: 700;
  font-size: 1.25rem;
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--surface-white);
    flex-direction: column;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }
  
  .nav-menu.active { display: flex; }
  .nav-menu > li { width: 100%; padding: 0 1.5rem; margin-bottom: 0.5rem; }
  .nav-menu .btn { width: 100%; }
  
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--border-light);
    margin-left: 1rem;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  
  .dropdown.active .dropdown-menu { display: block; }
  
  .mobile-sticky-cta { display: block; }
  body { padding-bottom: 80px; }
}