:root {
  --navy: #16324f;
  --teal: #1a8a8a;
  --teal-dark: #12696e;
  --bg: #fbfaf7;
  --text: #24303a;
  --muted: #5c6a75;
  --border: #e3e0d8;
  --amazon: #d98c00;
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: var(--navy);
  border-bottom: 3px solid var(--teal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  flex-wrap: wrap;
}

.logo {
  color: #fff;
  font-weight: 700;
  font-size: 1.3rem;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-header nav a {
  color: #dce8ea;
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}

.site-header nav a:hover { color: #fff; text-decoration: underline; }

main.content { padding: 40px 20px 60px; }

h1 { font-size: 2rem; color: var(--navy); margin-bottom: 0.3em; line-height: 1.2; }
h2 { font-size: 1.4rem; color: var(--navy); margin-top: 2em; border-bottom: 2px solid var(--border); padding-bottom: 0.3em; }
h3 { font-size: 1.15rem; color: var(--teal-dark); margin-top: 1.6em; }

.subtitle { color: var(--muted); font-size: 1.05rem; margin-top: 0; }
.meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 2em; }

a { color: var(--teal-dark); }

.disclosure-banner {
  background: #eef6f6;
  border-left: 4px solid var(--teal);
  padding: 12px 16px;
  font-size: 0.9rem;
  margin: 1.5em 0 2em;
  color: var(--muted);
  border-radius: 4px;
}

.amazon-link {
  display: inline-block;
  background: #fff8ec;
  border: 1px dashed var(--amazon);
  color: var(--amazon);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 3px 10px;
  border-radius: 4px;
  margin: 4px 0;
}

.product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 1.2em 0;
}

.product-card h3 { margin-top: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.92rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
}

th { background: #f0efe9; color: var(--navy); }

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 20px;
  margin-top: 1.5em;
}

.article-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: box-shadow 0.15s;
}

.article-card:hover { box-shadow: 0 4px 14px rgba(0,0,0,0.08); }
.article-card h3 { margin-top: 0; color: var(--navy); }
.article-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 0; }

.hero {
  background: linear-gradient(135deg, var(--navy), var(--teal-dark));
  color: #fff;
  padding: 50px 20px;
  text-align: center;
}

.hero h1 { color: #fff; }
.hero p { color: #dce8ea; max-width: 600px; margin: 0.6em auto 0; }

.site-footer {
  background: var(--navy);
  color: #cfd9dd;
  padding: 30px 20px;
  margin-top: 40px;
  font-size: 0.85rem;
}

.site-footer a { color: #9fd6d6; }
.site-footer .fine { color: #8fa0a8; margin-bottom: 0; }

ul, ol { padding-left: 1.3em; }
li { margin-bottom: 0.4em; }

.faq dt { font-weight: 600; color: var(--navy); margin-top: 1em; }
.faq dd { margin-left: 0; color: var(--muted); }