:root {
  --green-900: #1f3a2e;
  --green-700: #2f6b4a;
  --green-500: #4ea072;
  --green-100: #e6f1ea;
  --amber-100: #fff4d6;
  --amber-700: #8a6a14;
  --bg: #fbf8f3;
  --surface: #ffffff;
  --text: #2a2a28;
  --text-muted: #5b5b58;
  --border: #e6e2d8;
  --danger: #b04545;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.06), 0 2px 4px rgba(0,0,0,.04);
  --radius: 10px;
  --container: 1080px;
  --prose: 720px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { color: var(--green-900); line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; margin-top: 1.8em; }
h3 { font-size: 1.15rem; margin-top: 1.4em; }
p, ul, ol, table { margin: 0 0 1em; }
ul, ol { padding-left: 1.4em; }
li { margin-bottom: .35em; }
code { background: var(--green-100); padding: .1em .35em; border-radius: 4px; font-size: .92em; }

/* Disclaimer banner */
.disclaimer-banner {
  background: var(--amber-100);
  color: var(--amber-700);
  border-bottom: 1px solid #ebd99a;
  font-size: .92rem;
  padding: .65rem 1rem;
  text-align: center;
}
.disclaimer-banner strong { color: #6a4f08; }

/* Header / nav */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--shadow-sm);
}
.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: .9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--green-900);
}
.brand .brand-mark {
  width: 28px; height: 28px;
  background: var(--green-500);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.nav-links {
  display: flex;
  gap: 1.1rem;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--text);
  font-weight: 500;
  padding: .35rem 0;
}
.nav-links a:hover { color: var(--green-700); text-decoration: none; }
.nav-links a[aria-current="page"] {
  color: var(--green-700);
  border-bottom: 2px solid var(--green-500);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .4rem .55rem;
  cursor: pointer;
}
.nav-toggle:hover { background: var(--green-100); }

/* Hero */
.hero {
  position: relative;
  max-width: var(--container);
  margin: 1.5rem auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: #444;
}
.hero img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.15) 0%, rgba(0,0,0,.55) 100%);
  display: flex; align-items: flex-end;
  padding: 1.75rem 1.75rem 1.5rem;
}
.hero h1 { color: #fff; font-size: 2rem; max-width: 24ch; margin: 0; text-shadow: 0 1px 4px rgba(0,0,0,.3); }
.hero p.lead { color: #fff; opacity: .92; margin: .5rem 0 0; max-width: 50ch; }

/* Page hero (smaller, condition pages) */
.page-hero {
  position: relative;
  max-width: var(--container);
  margin: 1.5rem auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.page-hero img { width: 100%; aspect-ratio: 16 / 5; object-fit: cover; }
.page-hero .page-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.55) 100%);
  display: flex; align-items: flex-end;
  padding: 1.5rem;
}
.page-hero h1 { color: #fff; margin: 0; }

/* Layout containers */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.prose {
  max-width: var(--prose);
  margin: 0 auto;
  padding: 0 1.25rem;
}

section { margin: 2.5rem 0; }

/* Condition cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease;
  display: flex;
  flex-direction: column;
}
.card a { color: inherit; display: flex; flex-direction: column; height: 100%; }
.card a:hover { text-decoration: none; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.card-body { padding: 1rem 1.1rem 1.2rem; }
.card-body h3 { margin: 0 0 .25rem; color: var(--green-900); }
.card-body p { margin: 0; color: var(--text-muted); font-size: .95rem; }

/* Principles list */
.principles {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.principles li {
  background: var(--surface);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  gap: .8rem;
  align-items: flex-start;
}
.principles .icon {
  flex: 0 0 36px;
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--green-100);
  color: var(--green-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.principles .icon svg { width: 22px; height: 22px; }
.principles strong { color: var(--green-900); display: block; margin-bottom: .15rem; }
.principles small { color: var(--text-muted); font-size: .92rem; line-height: 1.45; }

/* Food groups (condition pages) */
.food-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}
.food-group {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.food-group img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.food-group-body { padding: .9rem 1rem 1.1rem; }
.food-group-body h3 { margin: 0 0 .35rem; font-size: 1.05rem; }
.food-group-body p { margin: 0; color: var(--text-muted); font-size: .95rem; }

/* Avoid list */
.avoid-list {
  background: #fdf3f3;
  border: 1px solid #e9c8c8;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}
.avoid-list h2 { margin-top: 0; color: var(--danger); }
.avoid-list ul { margin: 0; }

/* Sample-day table */
.sample-day {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius);
  overflow: hidden;
}
.sample-day th, .sample-day td {
  padding: .85rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.sample-day th {
  background: var(--green-100);
  color: var(--green-900);
  font-weight: 600;
  width: 30%;
}
.sample-day tr:last-child th, .sample-day tr:last-child td { border-bottom: 0; }

/* Notes */
.notes {
  background: var(--green-100);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--green-500);
}
.notes h2 { margin-top: 0; }

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 1.25rem;
  background: var(--green-900);
  color: #d8e4dd;
  font-size: .92rem;
  text-align: center;
}
.site-footer a { color: #cce4d6; text-decoration: underline; }
.site-footer p { margin: .35rem 0; }

/* Responsive */
@media (max-width: 720px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
  .hero h1 { font-size: 1.5rem; }
  .hero img, .page-hero img { aspect-ratio: 4 / 3; }
  .nav { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: .25rem;
    padding-top: .5rem;
    border-top: 1px solid var(--border);
    margin-top: .35rem;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: .5rem 0; }
  .sample-day th { width: 35%; }
}