@font-face {
    font-family: 'Barlow Semi Condensed';
    src: url('fonts/BarlowSemiCondensed-Medium.ttf') format('truetype');
    font-weight: 500;
    font-display: swap;
  }
  @font-face {
    font-family: 'Barlow Semi Condensed';
    src: url('fonts/BarlowSemiCondensed-Bold.ttf') format('truetype');
    font-weight: 700;
    font-display: swap;
  }

  :root {
    --petrol: #0c4a55;
    --deep: #072e36;
    --frost: #ecf2f1;
    --stone: #a9bdbf;
    --signal: #f9a800;
    --bg: var(--frost);
    --fg: var(--petrol);
    --muted: #3c5a60;
    --card-bg: #ffffff;
    --border: #d7e0df;
  }
  @media (prefers-color-scheme: dark) {
    :root {
      --bg: var(--deep);
      --fg: var(--frost);
      --muted: var(--stone);
      --card-bg: #0a3d47;
      --border: #12525e;
    }
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    background: var(--bg);
    color: var(--fg);
    font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
    line-height: 1.55;
  }
  h1, h2, .brand {
    font-family: 'Barlow Semi Condensed', sans-serif;
    font-weight: 700;
  }

  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    max-width: 960px;
    margin: 0 auto;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--fg);
  }
  .brand img { height: 28px; width: auto; display: block; }
  nav a {
    color: var(--fg);
    text-decoration: none;
    margin-left: 1.5rem;
    font-size: 0.95rem;
  }
  nav a:hover { text-decoration: underline; }

  main {
    max-width: 720px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
  }
  .hero-mark { height: 96px; width: auto; margin-bottom: 1.5rem; }
  h1 {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    line-height: 1.05;
    margin: 0 0 0.75rem;
  }
  .tagline {
    font-size: 1.15rem;
    color: var(--muted);
    margin: 0 0 2rem;
    max-width: 42ch;
  }
  .cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
  }
  .button {
    display: inline-block;
    padding: 0.7rem 1.4rem;
    border-radius: 0.4rem;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
  }
  .button--primary {
    background: var(--petrol);
    color: var(--frost);
  }
  @media (prefers-color-scheme: dark) {
    .button--primary { background: var(--frost); color: var(--deep); }
  }
  .button--secondary {
    border: 1px solid var(--border);
    color: var(--fg);
  }

  .cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
  }
  .card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    padding: 1.1rem 1.25rem;
  }
  .card h2 {
    font-size: 1.05rem;
    margin: 0 0 0.4rem;
  }
  .card p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--muted);
  }

  footer {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--muted);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    align-items: center;
  }
  footer a { color: var(--muted); }

  .legal {
    max-width: 640px;
  }
  .legal h1 { font-size: 2rem; margin-bottom: 1.5rem; }
  .legal h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
  .legal ul { padding-left: 1.25rem; }
  .legal li { margin-bottom: 0.4rem; }