:root {
  --ink: #14161a;
  --muted: #5c636e;
  --line: #e3e6ea;
  --bg: #ffffff;
  --accent: #1f5f4b;
  --warn-bg: #fff7ed;
  --warn-line: #e5a45b;
  --max: 44rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.site-header, main, .site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:first-child {
  color: var(--ink);
  font-weight: 600;
  margin-right: auto;
}

.site-nav a:hover, .site-nav a[aria-current="page"] {
  color: var(--accent);
}

main { padding: 2.5rem 0 3rem; }

h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 1rem; }
h2 { font-size: 1.3rem; line-height: 1.3; margin: 2.25rem 0 0.75rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.4rem; }

p { margin: 0 0 1rem; }

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

blockquote {
  margin: 1.25rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

ul, ol { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }

.answer {
  background: #f6f8f7;
  border-radius: 8px;
  padding: 1rem 1.15rem;
  margin: 0 0 1.75rem;
}

.safety {
  display: block;
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 2rem 0 1rem;
  font-size: 0.95rem;
}

.author-box {
  margin: 1.5rem 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.subscribe {
  margin: 2.25rem 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.form-title { font-weight: 600; margin: 0 0 0.75rem; }

.subscribe input[type="email"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  font-size: 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 0.6rem;
}

.subscribe button {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.form-note { color: var(--muted); font-size: 0.85rem; margin: 0.6rem 0 0; }

.form-missing {
  margin: 2rem 0;
  padding: 0.9rem 1.1rem;
  border: 1px dashed var(--warn-line);
  border-radius: 8px;
  background: var(--warn-bg);
  font-size: 0.9rem;
}

.post-list { list-style: none; padding: 0; }
.post-list li { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.post-list a { font-weight: 600; text-decoration: none; }
.muted { color: var(--muted); font-size: 0.9rem; }

.site-footer {
  padding-top: 1.5rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.disclaimer { margin-bottom: 0.5rem; }