:root {
  --green: #2f6f4f;
  --green-dark: #245840;
  --bg: #f4f5f3;
  --card: #ffffff;
  --text: #1f2421;
  --muted: #6b746e;
  --border: #dfe3e0;
  --red: #b3261e;
  --amber: #b06f12;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: var(--green);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.topbar nav { display: flex; align-items: center; gap: 14px; }
.topbar nav a { color: #fff; text-decoration: none; font-size: 0.95rem; opacity: 0.92; }
.topbar nav a:hover { opacity: 1; }
.inline { display: inline; margin: 0; }
.linkbtn {
  background: none; border: none; color: #fff; font-size: 0.95rem;
  cursor: pointer; padding: 0; opacity: 0.92;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.card.narrow { max-width: 420px; margin: 32px auto; }

h1 { font-size: 1.35rem; margin: 0 0 14px; }
h2 { font-size: 1.1rem; margin: 0 0 10px; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}
input, textarea, select {
  width: 100%;
  margin-top: 4px;
  padding: 11px 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}
textarea { resize: vertical; min-height: 90px; }
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--green);
}

button.primary, button.secondary {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
}
button.primary { background: var(--green); color: #fff; }
button.primary:hover { background: var(--green-dark); }
button.primary:disabled { background: var(--muted); cursor: not-allowed; }
button.secondary { background: #fff; color: var(--green); border-color: var(--green); }

a { color: var(--green); }
.muted { color: var(--muted); font-size: 0.9rem; }
.error {
  background: #fce8e6;
  color: var(--red);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

/* segmented toggle */
.toggle {
  display: flex;
  gap: 4px;
  background: #eef0ee;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 12px;
}
.toggle-opt {
  flex: 1;
  padding: 9px 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.toggle-opt.active {
  background: #fff;
  color: var(--green);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* entries / chips */
.entry { border-bottom: 1px solid var(--border); padding: 14px 0; }
.entry:last-child { border-bottom: none; }
.entry .raw { margin: 0 0 8px; }
.entry .when { font-size: 0.8rem; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  font-size: 0.8rem;
  padding: 4px 9px;
  border-radius: 999px;
  background: #eef2ef;
  border: 1px solid var(--border);
}
.chip.food { background: #e8f0ea; border-color: #cfe0d4; }
.chip.symptom { background: #fbeede; border-color: #ecd9bd; }

/* insights */
.score-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.score-row:last-child { border-bottom: none; }
.score-row .food-name { font-weight: 600; }
.score-row .detail { font-size: 0.82rem; color: var(--muted); }
.badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge.trigger { background: #fce8e6; color: var(--red); }
.badge.protective { background: #e8f0ea; color: var(--green); }
.badge.neutral { background: #eef0ee; color: var(--muted); }
.section-title { margin-top: 4px; }