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

:root {
  --navy: #002157;
  --blue: #1a6fd4;
  --text: #1a2332;
  --text-muted: #4a5568;
  --bg: #dce3ea;
  --bg-section: #e8edf2;
  --bg-card: #f4f6f9;
  --white: #ffffff;
  --border: #b8c4d0;
  --image-border: #c5ced8;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

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

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--wide {
  max-width: 1100px;
}

/* Rounded frame for white-background images on darker sections */

.media-frame {
  background: var(--white);
  border: 1px solid var(--image-border);
  border-radius: 12px;
  padding: 0.75rem;
  box-shadow: 0 2px 10px rgba(0, 33, 87, 0.1);
  overflow: hidden;
}

.media-frame img {
  width: 100%;
  border-radius: 8px;
}

/* Hero */

.hero {
  background: var(--bg-section);
  text-align: center;
  padding: 3rem 1.5rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  max-width: 320px;
  margin: 0 auto 1.5rem;
  padding: 1.25rem 1.75rem;
  background: var(--white);
  border: 1px solid var(--image-border);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 33, 87, 0.1);
}

.slogan {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.01em;
  max-width: 540px;
  margin: 0 auto;
}

/* Intro */

.intro {
  padding: 3rem 0;
}

.intro p {
  font-size: 1.125rem;
  color: var(--text-muted);
}

/* Visual sections */

.visual-section {
  padding: 2rem 0 3.5rem;
  background: var(--bg);
}

.visual-section h2,
.connectivity h2 {
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-lead {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.feature-image {
  margin: 0;
}

/* Capability cards */

.capabilities {
  padding: 3.5rem 0;
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.capability-grid {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.capability-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
}

.capability-card figure {
  margin: 0;
}

.capability-text h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.capability-text p {
  color: var(--text-muted);
}

/* Connectivity */

.connectivity {
  padding: 3rem 0 4rem;
  background: var(--bg);
}

.connectivity-list {
  list-style: none;
  margin-top: 2rem;
  display: grid;
  gap: 1.25rem;
}

.connectivity-list li {
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  border-radius: 0 8px 8px 0;
}

.connectivity-list strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.25rem;
}

.connectivity-list span {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* Footer */

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.footer-company {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer address {
  font-style: normal;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.footer-contact a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
}

.footer-contact a:hover {
  text-decoration: underline;
}

/* Responsive */

@media (min-width: 768px) {
  .hero {
    padding: 4rem 1.5rem 3rem;
  }

  .logo {
    max-width: 380px;
    padding: 1.5rem 2rem;
    border-radius: 14px;
  }

  .media-frame {
    padding: 1rem;
    border-radius: 14px;
  }

  .media-frame img {
    border-radius: 10px;
  }

  .intro {
    padding: 4rem 0;
  }

  .capability-card {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .capability-card--reverse figure {
    order: 2;
  }

  .capability-card--reverse .capability-text {
    order: 1;
  }

  .connectivity-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .connectivity-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .connectivity-list li {
    border-left: 1px solid var(--border);
    border-top: 4px solid var(--blue);
    border-radius: 0 0 8px 8px;
  }
}