:root {
  --primary-navy: #0B192C;
  --primary-blue: #1E3E62;
  --accent-blue: #0A5EB0;
  --conversion-orange: #E65C00;
  --conversion-orange-hover: #CC5200;
  --surface-light: #F4F7F9;
  --surface-white: #FFFFFF;
  --text-dark: #1A1A1A;
  --text-muted: #555555;
  --border-color: #E2E8F0;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --nav-height: 80px;
  --sticky-bar-height: 60px;
}

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

html {
  font-family: var(--font-sans);
  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;
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 600; }

p { margin-bottom: 1.25rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  transition: all 0.2s ease;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--conversion-orange);
  color: var(--surface-white);
  box-shadow: 0 4px 6px rgba(230, 92, 0, 0.2);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--conversion-orange-hover);
  transform: translateY(-2px);
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Nav */
header {
  background-color: var(--surface-white);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-accent { color: var(--accent-blue); }

.desktop-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--primary-navy);
  transition: color 0.2s;
  padding: 0.5rem 0;
}

.nav-link:hover { color: var(--accent-blue); }

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--surface-white);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border-radius: 4px;
  padding: 1rem 0;
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
}

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

.dropdown-item {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--text-dark);
  transition: background 0.2s;
}

.dropdown-item:hover {
  background: var(--surface-light);
  color: var(--accent-blue);
}

.header-cta {
  display: none;
}

/* Mobile Nav */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary-navy);
  margin-bottom: 5px;
  transition: 0.3s;
}

.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  background: var(--surface-white);
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  z-index: 99;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-nav-link {
  display: block;
  font-size: 1.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

/* Layout Utilities */
.section-pad {
  padding: 5rem 0;
}

.bg-white { background-color: var(--surface-white); }
.bg-navy { background-color: var(--primary-navy); color: var(--surface-white); }
.bg-navy h2, .bg-navy h3 { color: var(--surface-white); }
.bg-navy p { color: #CBD5E1; }

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

/* Hero Sections */
.hero {
  background-color: var(--primary-navy);
  color: var(--surface-white);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero h1 { color: var(--surface-white); }

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #94A3B8;
  margin-bottom: 2rem;
}

.hero-image {
  border-radius: 8px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: #94A3B8;
  margin-bottom: 1.5rem;
}

.breadcrumb a { color: var(--surface-white); text-decoration: underline; }

/* Split Sections */
.split-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.split-reverse .split-content { grid-row: 1; }

.split-image {
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  width: 100%;
  object-fit: cover;
}

/* Service Cards */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.service-card {
  background: var(--surface-white);
  border-radius: 8px;
  padding: 2.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 20px rgba(0,0,0,0.08);
}

.service-card h3 {
  color: var(--accent-blue);
  margin-bottom: 1rem;
}

/* Call to Action Box */
.cta-box {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-navy));
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  color: var(--surface-white);
  margin: 3rem 0;
}

.cta-box h2 { color: var(--surface-white); margin-bottom: 1rem; }
.cta-box p { font-size: 1.125rem; margin-bottom: 2rem; color: #CBD5E1; }

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.5rem;
  background: none;
  border: none;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary-navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-muted);
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.5rem;
  max-height: 500px;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Footer */
footer {
  background-color: #050D1A;
  color: #94A3B8;
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--surface-white);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--surface-white);
}

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
}

/* Mobile Sticky Call Bar */
.sticky-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--conversion-orange);
  padding: env(safe-area-inset-bottom, 0) 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}

.sticky-call-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: var(--sticky-bar-height);
  color: var(--surface-white);
  font-size: 1.25rem;
  font-weight: 700;
  gap: 0.5rem;
}

/* Media Queries */
@media (min-width: 768px) {
  .hero-inner, .split-section {
    grid-template-columns: 1fr 1fr;
  }
  .split-reverse .split-content { grid-row: auto; }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .header-cta {
    display: inline-flex;
  }
  .mobile-toggle {
    display: none;
  }
  .mobile-menu {
    display: none !important;
  }
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
  .sticky-call-bar {
    display: none;
  }
  body {
    padding-bottom: 0;
  }
}

@media (max-width: 1023px) {
  .desktop-nav {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  body {
    padding-bottom: calc(var(--sticky-bar-height) + env(safe-area-inset-bottom, 0));
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}