:root {
  --bg: #f4f2ec;
  --paper: #fffdfa;
  --ink: #1d231f;
  --muted: #5a625d;
  --line: #d9d3c4;
  --accent: #145f57;
  --warning-bg: #fff5dc;
  --warning-line: #b87817;
  --tip-bg: #edf5fb;
  --tip-line: #2d6f9f;
  --code-bg: #f1ede4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, #ece6d6 0, rgba(236, 230, 214, 0.8) 22%, rgba(236, 230, 214, 0) 45%),
    linear-gradient(180deg, #f0ebe0 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.7;
}

a {
  color: var(--accent);
}

a:hover {
  color: #0e4944;
}

.wrap {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  padding: 56px 0 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font: 600 0.86rem/1.2 "Segoe UI", Arial, sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3 {
  line-height: 1.2;
  color: #132b28;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.55rem;
}

h3 {
  margin: 22px 0 6px;
  font-size: 1.08rem;
}

.lead {
  max-width: 52rem;
  margin: 16px 0 0;
  font-size: 1.15rem;
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-block;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fffdfa;
  text-decoration: none;
  border-radius: 8px;
  font: 600 0.98rem/1.2 "Segoe UI", Arial, sans-serif;
}

.button:hover {
  background: #0f4f48;
  color: #fffdfa;
}

.button-secondary {
  background: transparent;
  color: var(--accent);
}

.article-card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.05);
  padding: clamp(24px, 4vw, 42px);
}

.article-card section + section {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid #ece7db;
}

p, li {
  font-size: 1.03rem;
}

ul, ol {
  padding-left: 1.35rem;
}

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.94em;
  background: var(--code-bg);
  padding: 0.12rem 0.3rem;
  border-radius: 4px;
}

pre {
  margin: 14px 0 0;
  padding: 16px;
  overflow-x: auto;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

pre code {
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.warning-box,
.tip-box {
  padding: 16px 18px;
  border-left: 5px solid;
  border-radius: 6px;
}

.warning-box {
  background: var(--warning-bg);
  border-left-color: var(--warning-line);
}

.tip-box {
  background: var(--tip-bg);
  border-left-color: var(--tip-line);
}

.source-note {
  color: var(--muted);
  font-size: 0.98rem;
}

.site-footer {
  padding: 22px 0 52px;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  font: 600 0.95rem/1.2 "Segoe UI", Arial, sans-serif;
}

@media (max-width: 640px) {
  body {
    line-height: 1.6;
  }

  .site-header {
    padding-top: 36px;
  }

  .footer-links {
    justify-content: flex-start;
  }
}