:root {
  color-scheme: light;
  --page-bg: #f6f7f4;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5f6b76;
  --line: #d9ded8;
  --accent: #1f6f8b;
  --accent-bg: #e8f3f6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.site-header-inner,
.site-main,
.site-footer {
  width: calc(100% - 32px);
  max-width: 1120px;
  margin: 0 auto;
}

.site-header-inner {
  padding: 28px 0 18px;
}

.site-title {
  margin: 0 0 16px;
  font-size: clamp(1.45rem, 2.3vw, 2rem);
  line-height: 1.25;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.95rem;
}

.site-main {
  padding: 28px 0 40px;
}

section {
  margin: 0 0 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

section:first-child {
  border-top: 0;
  padding-top: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  line-height: 1.35;
}

h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

p,
ul {
  margin-top: 0;
}

ul {
  padding-left: 1.35rem;
}

li + li {
  margin-top: 0.45rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.94rem;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--accent-bg);
  font-weight: 650;
}

tr:last-child td {
  border-bottom: 0;
}

.site-footer {
  padding: 20px 0 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 720px) {
  .site-header-inner,
  .site-main,
  .site-footer {
    width: calc(100% - 20px);
  }

  .site-nav {
    gap: 6px 12px;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}