:root {
  --brown: #8a5a3b;
  --brown-dark: #6f4527;
  --cream: #fbf6ef;
  --card: #ffffff;
  --ink: #3a2d24;
  --muted: #8b7a6c;
  --line: #eadfce;
  --accent: #c97b4a;
  --ok: #4c8a4f;
  --warn: #d29a26;
  --danger: #c0453e;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--cream);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

.app-header {
  background: var(--brown);
  color: #fff;
  padding: 18px 16px 14px;
  padding-top: calc(18px + env(safe-area-inset-top));
}
.app-header h1 { margin: 0; font-size: 22px; }
.app-header .subtitle { margin: 4px 0 0; font-size: 13px; opacity: .85; }

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 12px 12px calc(24px + env(safe-area-inset-bottom));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 1px 3px rgba(90, 60, 30, .06);
}
.card h2 { margin: 0 0 12px; font-size: 17px; }
.card h3 { margin: 16px 0 8px; font-size: 15px; }

.hidden { display: none !important; }
.note { font-size: 13px; color: var(--muted); margin: 8px 0 0; }

.banner {
  background: #fdf0d5;
  border: 1px solid var(--warn);
  color: #7a5a12;
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 15px;
  font-weight: 600;
}
.error-box {
  background: #fbe3e1;
  border: 1px solid var(--danger);
  color: #7c2620;
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 14px;
}

/* 餌 */
.food-main { text-align: center; padding: 6px 0 2px; }
.food-num { font-size: 44px; font-weight: 800; color: var(--brown-dark); line-height: 1.1; }
.food-num .unit { font-size: 18px; font-weight: 600; margin-left: 6px; }
.food-per { font-size: 16px; margin-top: 4px; }
.food-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  margin: 14px 0 0;
}
.food-detail div { background: var(--cream); border-radius: 10px; padding: 8px 10px; }
.food-detail dt { font-size: 12px; color: var(--muted); }
.food-detail dd { margin: 2px 0 0; font-size: 14px; font-weight: 600; }
.growth-comment { font-size: 14px; margin: 10px 0 0; }

/* フォーム */
.row-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
}
.row-form label, .settings-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
  flex: 1 1 130px;
}
input, select {
  font-size: 16px; /* iOSのズーム防止 */
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  width: 100%;
}
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 15px;
  cursor: pointer;
  min-height: 44px;
}
.btn.primary { background: var(--brown); border-color: var(--brown); color: #fff; font-weight: 600; }
.btn.small { padding: 6px 10px; font-size: 13px; min-height: 36px; }
.btn.danger { color: var(--danger); }
.btn:active { opacity: .75; }

.settings-form { display: flex; flex-direction: column; gap: 12px; }
.settings-form .btn { align-self: flex-start; }

/* 記録リスト */
.record-list { list-style: none; margin: 10px 0 0; padding: 0; }
.record-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 2px;
  border-top: 1px solid var(--line);
  font-size: 15px;
}
.record-list .grow { flex: 1; }
.record-list .sub { font-size: 12px; color: var(--muted); }
.record-list .diff { font-size: 13px; color: var(--muted); white-space: nowrap; }

/* チェックリスト */
.care-list { list-style: none; margin: 0; padding: 0; }
.care-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 10px;
}
.care-item.overdue { border-color: var(--danger); background: #fdf1f0; }
.care-item.soon { border-color: var(--warn); background: #fdf8ec; }
.care-head { display: flex; align-items: center; gap: 10px; }
.care-name { font-size: 16px; font-weight: 700; flex: 1; }
.care-meta { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.5; }
.chip {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  background: #eef3ee;
  color: var(--ok);
  white-space: nowrap;
}
.chip.soon { background: #fdf0d5; color: #7a5a12; }
.chip.overdue { background: #f9dcd9; color: var(--danger); }
.chip.none { background: #eee; color: var(--muted); }
.care-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.care-edit { margin-top: 10px; }

.add-box { margin-top: 6px; }
.add-box summary { font-size: 14px; color: var(--brown-dark); cursor: pointer; padding: 6px 0; }
.add-box .row-form { margin-top: 8px; }

canvas#growth-chart { width: 100%; display: block; }

.app-footer { text-align: center; color: var(--muted); font-size: 12px; padding: 8px 0 4px; }