:root {
  --c-bg: #fafaf9;
  --c-fg: #0f172a;
  --c-muted: #64748b;
  --c-border: #e2e8f0;
  --c-card: #ffffff;
  --c-accent: #0f766e;
  --c-accent-dark: #115e59;
  --c-accent-soft: #ccfbf1;
  --c-warning: #b45309;
  --radius: 12px;
  --max: 1120px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-head: "Georgia", "Cambria", "Times New Roman", serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--c-fg);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 17px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--c-accent-dark); }
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  background: var(--c-card);
  border-bottom: 1px solid var(--c-border);
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.logo {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-accent);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav { display: flex; gap: 22px; flex-wrap: wrap; }
.nav a { color: var(--c-fg); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--c-accent); }

/* Main */
main { padding: 48px 0 64px; }
h1, h2, h3, h4 { font-family: var(--font-head); color: var(--c-fg); line-height: 1.25; }
h1 { font-size: 42px; margin: 0 0 18px; }
h2 { font-size: 30px; margin: 40px 0 14px; }
h3 { font-size: 22px; margin: 28px 0 10px; }
p { margin: 0 0 18px; }
ul, ol { margin: 0 0 18px; padding-left: 24px; }
li { margin-bottom: 8px; }

/* Page intros */
.page-intro { max-width: 760px; }
.page-intro .lede { font-size: 20px; color: var(--c-muted); margin-bottom: 24px; }
.byline { color: var(--c-muted); font-size: 14px; margin-bottom: 32px; }

/* Article prose */
.prose { max-width: 760px; }
.prose p { font-size: 17px; }
.prose h2 { border-bottom: 1px solid var(--c-border); padding-bottom: 6px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--c-accent-soft) 0%, #ffffff 100%);
  border: 1px solid var(--c-border);
  border-radius: 18px;
  padding: 60px 48px;
  margin-bottom: 48px;
}
.hero h1 { font-size: 46px; max-width: 720px; }
.hero .lede { font-size: 20px; color: var(--c-muted); max-width: 680px; margin-bottom: 28px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--c-accent);
  color: #fff !important;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  font-size: 16px;
  font-family: var(--font-body);
}
.btn:hover { background: var(--c-accent-dark); }
.btn-secondary {
  background: transparent;
  color: var(--c-accent) !important;
  border: 2px solid var(--c-accent);
  padding: 12px 26px;
}
.btn-secondary:hover { background: var(--c-accent-soft); }

/* Card grids */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; margin: 32px 0; }
.card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 26px;
  text-decoration: none;
  color: var(--c-fg);
  display: block;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -12px rgba(15,118,110,0.18); }
.card h3 { margin: 0 0 8px; color: var(--c-accent); }
.card p { margin: 0; color: var(--c-muted); font-size: 15px; }
.card .meta { color: var(--c-muted); font-size: 13px; margin-bottom: 8px; }

/* Quiz */
.quiz { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 36px; max-width: 760px; margin: 32px 0; }
.quiz fieldset { border: 1px solid var(--c-border); border-radius: 8px; padding: 18px 22px; margin: 0 0 24px; }
.quiz legend { font-weight: 600; padding: 0 10px; font-size: 16px; }
.quiz label { display: block; padding: 8px 0; cursor: pointer; }
.quiz input[type="radio"] { margin-right: 10px; }

.callout {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-left: 4px solid var(--c-warning);
  padding: 16px 20px;
  border-radius: 8px;
  margin: 24px 0;
  font-size: 15px;
}
.callout-info {
  background: var(--c-accent-soft);
  border: 1px solid #5eead4;
  border-left: 4px solid var(--c-accent);
  padding: 16px 20px;
  border-radius: 8px;
  margin: 24px 0;
  font-size: 15px;
}

/* Recipe */
.recipe { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 28px; margin-bottom: 24px; }
.recipe h3 { margin-top: 0; }
.recipe .facts { display: flex; gap: 20px; color: var(--c-muted); font-size: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.recipe .facts span strong { color: var(--c-fg); }
.recipe ul { margin-bottom: 14px; }

/* Footer */
.site-footer { background: #ffffff; border-top: 1px solid var(--c-border); padding: 48px 0 28px; margin-top: 72px; }
.footer-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 36px; }
.footer-cols h4 { margin: 0 0 14px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-muted); font-family: var(--font-body); }
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: 8px; }
.footer-cols a { color: var(--c-fg); text-decoration: none; font-size: 14px; }
.footer-cols a:hover { color: var(--c-accent); }
.footer-legal { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--c-border); color: var(--c-muted); font-size: 13px; text-align: center; }

@media (max-width: 640px) {
  h1 { font-size: 32px; }
  .hero { padding: 40px 28px; }
  .hero h1 { font-size: 34px; }
  .site-header { position: static; }
}