:root {
  --primary: #1B3A5C;
  --text: #12202f;
  --muted: #5d6a78;
  --bg: #f6f8fb;
  --card: #ffffff;
  --border: #dce3ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-wrap {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.logo {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.section {
  margin: 1.25rem auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
}

.grid-2 {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.btn {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--primary);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  color: var(--primary);
  background: #fff;
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer-wrap {
  padding: 1.4rem 0;
  color: var(--muted);
}

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

th,
td {
  border: 1px solid var(--border);
  padding: 0.6rem;
  text-align: left;
}

.muted {
  color: var(--muted);
}

.alert {
  border-radius: 8px;
  padding: 0.8rem;
  margin-top: 0.8rem;
}

.alert-warning {
  background: #fff8e6;
  border: 1px solid #f6e3ad;
}