:root {
  --blue: #135a7a;
  --blue-dark: #0b4059;
  --bg: #f4f8f8;
  --text: #202628;
  --muted: #5d676b;
  --line: #d7e0e0;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--blue);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--blue-dark);
}

.site-header {
  background: #508cda;
  color: #fff;
  padding: 0.8rem 1.25rem;
}

.site-header a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.container {
  width: min(100% - 2rem, 960px);
  margin: 2rem auto 4rem;
}

.back-link {
  margin: 0 0 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  box-shadow: 0 2px 9px rgba(0, 0, 0, 0.04);
}

h1, h2 {
  color: var(--blue-dark);
  line-height: 1.2;
}

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 6vw, 3rem);
}

h2 {
  margin: 2.4rem 0 0.75rem;
  font-size: 1.45rem;
}

.coordinates {
  font-variant-numeric: tabular-nums;
}

.map-button {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: 6px;
  background: #508cda;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.map-button:hover {
  background: var(--blue-dark);
  color: #fff;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gallery figure {
  margin: 0;
}

.gallery img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.gallery figcaption {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  width: 34%;
  color: var(--muted);
  font-weight: 600;
}

.site-footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
img.site-logo {
    max-width: 300px;

}
li.source-list-item {
    margin: 30px;
}