:root {
  --color-primary: #1B3A5C;
  --color-primary-dark: #0F2540;
  --color-accent: #2E7D9E;
  --color-slate-900: #1A202C;
  --color-slate-700: #2D3748;
  --color-slate-500: #718096;
  --color-slate-200: #E2E8F0;
  --color-slate-50: #F7FAFC;
  --color-white: #FFFFFF;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-slate-700);
  background: var(--color-white);
}

/* ── Layout ───────────────────────────────────────── */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
}

.section-narrow {
  max-width: 720px;
}

.bg-white { background: var(--color-white); }
.bg-slate { background: var(--color-slate-50); }

/* ── Typography ───────────────────────────────────── */

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1.25rem; }
h3 { font-size: 1.125rem; margin-bottom: 0.625rem; }

p + p { margin-top: 1rem; }

/* ── Header ───────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-slate-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.125rem;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-primary {
  font-weight: 700;
}

.logo-secondary {
  font-weight: 400;
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.main-nav a {
  color: var(--color-slate-700);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: color 0.15s;
}

.main-nav a:hover {
  color: var(--color-accent);
}

/* Hamburger button */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-slate-200);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 1rem;
  }

  .main-nav.open {
    display: flex;
  }
}

/* ── Hero ─────────────────────────────────────────── */

.hero {
  background: var(--color-primary-dark);
  padding: 112px 0;
}

@media (max-width: 768px) {
  .hero {
    padding: 80px 0;
  }
}

.hero-inner {
  max-width: 760px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
}

.hero p {
  color: var(--color-slate-200);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 600px;
}

.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 6px;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: #246a87;
}

/* ── Services ─────────────────────────────────────── */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 2rem 0;
}

@media (max-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: 8px;
  padding: 28px;
}

.service-card h3 {
  color: var(--color-primary);
}

.service-card p {
  color: var(--color-slate-500);
  font-size: 0.9375rem;
  margin-top: 0.5rem;
}

.services-note {
  font-size: 0.9375rem;
  color: var(--color-slate-500);
  border-top: 1px solid var(--color-slate-200);
  padding-top: 1.5rem;
  margin-top: 0.5rem;
}

/* ── Contact ──────────────────────────────────────── */

.contact-email {
  display: inline-block;
  margin: 1.5rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s;
}

.contact-email:hover {
  border-color: var(--color-accent);
}

.contact-addresses {
  display: flex;
  gap: 3rem;
  margin-top: 1.5rem;
}

@media (max-width: 640px) {
  .contact-addresses {
    flex-direction: column;
    gap: 1.5rem;
  }
}

.address-block strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-slate-500);
  margin-bottom: 0.5rem;
}

.address-block address {
  font-style: normal;
  color: var(--color-slate-700);
  line-height: 1.7;
}

/* ── Footer ───────────────────────────────────────── */

.site-footer {
  background: var(--color-primary-dark);
  padding: 48px 0;
}

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

.footer-name {
  font-weight: 700;
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.footer-tagline {
  color: var(--color-slate-500);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
}

.footer-privacy {
  color: var(--color-slate-500);
  font-size: 0.8125rem;
  margin-bottom: 0.75rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.footer-copy {
  color: var(--color-slate-500);
  font-size: 0.875rem;
}