/* ===== リセット・基本 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #4CAF50;
  --primary-dark: #388E3C;
  --danger: #F44336;
  --warning: #FF9800;
  --bg: #f0f4f0;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #777;
  --border: #e0e0e0;
  --protein: #3b82f6;
  --fat: #f59e0b;
  --carb: #10b981;
  --radius: 16px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 40px;
}

/* ===== スクリーン切り替え ===== */
.screen { display: none; max-width: 480px; margin: 0 auto; padding: 16px; }
.screen.active { display: block; }

/* ===== カード ===== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

/* ===== ロゴ ===== */
.logo {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
}
.sub {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.logo-small {
  font-size: 1.2rem;
  font-weight: 700;
}

/* ===== ヘッダー ===== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 16px 0;
  max-width: 480px;
  margin: 0 auto;
}
.btn-icon {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

/* ===== 日付ナビ ===== */
.date-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 12px 0 4px;
  font-weight: 600;
  font-size: 1rem;
}
.date-nav button {
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--primary);
  line-height: 1;
  padding: 0 4px;
}

/* ===== フォーム ===== */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.2s;
  background: #fafafa;
  color: var(--text);
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
}
.input-unit {
  display: flex;
  align-items: center;
  gap: 8px;
}
.input-unit input { flex: 1; }
.input-unit span { color: var(--muted); font-size: 0.95rem; white-space: nowrap; }

.radio-group { display: flex; gap: 16px; padding-top: 4px; }
.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 1rem;
}
.radio-label input { accent-color: var(--primary); width: 16px; height: 16px; }

/* ===== ボタン ===== */
.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s, transform 0.1s;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:active { transform: scale(0.98); }

.btn-add {
  width: 100%;
  padding: 12px;
  background: none;
  border: 2px dashed var(--primary);
  border-radius: 12px;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s;
}
.btn-add:hover { background: #f0faf0; }

.btn-back {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

/* ===== カロリーリング ===== */
.summary-card { text-align: center; }

.calorie-ring-wrapper {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto 20px;
}
.calorie-ring { transform: rotate(-90deg); }
.ring-bg {
  fill: none;
  stroke: #e8f5e9;
  stroke-width: 12;
}
.ring-fill {
  fill: none;
  stroke: var(--primary);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 0.6s ease, stroke 0.3s;
}
.ring-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
.ring-main {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
}
.ring-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}

.calorie-stats {
  display: flex;
  justify-content: space-around;
  margin-bottom: 16px;
}
.stat { text-align: center; }
.stat-label { font-size: 0.75rem; color: var(--muted); }
.stat-value { font-size: 1.1rem; font-weight: 700; margin-top: 2px; }

.calorie-message {
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}
.calorie-message.ok { background: #e8f5e9; color: #2e7d32; display: block; }
.calorie-message.warn { background: #fff3e0; color: #e65100; display: block; }
.calorie-message.over { background: #ffebee; color: #c62828; display: block; }

/* ===== PFCバー ===== */
.section-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}
.pfc-bars { display: flex; flex-direction: column; gap: 12px; }
.pfc-item { display: flex; align-items: center; gap: 10px; }
.pfc-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  width: 80px;
  flex-shrink: 0;
}
.pfc-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.pfc-dot.protein { background: var(--protein); }
.pfc-dot.fat { background: var(--fat); }
.pfc-dot.carb { background: var(--carb); }

.pfc-bar-wrap {
  flex: 1;
  background: #f0f0f0;
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}
.pfc-bar {
  height: 100%;
  border-radius: 999px;
  width: 0%;
  transition: width 0.5s ease;
}
.protein-bar { background: var(--protein); }
.fat-bar { background: var(--fat); }
.carb-bar { background: var(--carb); }
.pfc-value { font-size: 0.85rem; font-weight: 600; width: 36px; text-align: right; }

/* ===== 目標カード ===== */
.goal-stats {
  display: flex;
  justify-content: space-around;
  text-align: center;
}
.goal-value { font-size: 1.4rem; font-weight: 800; color: var(--primary); }
.goal-label { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }

/* ===== 食事リスト ===== */
.meal-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 4px; }
.meal-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: #f8fdf8;
  border-radius: 10px;
  border: 1px solid #e8f5e9;
}
.meal-info { flex: 1; }
.meal-name-text { font-weight: 600; font-size: 0.95rem; }
.meal-timing-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--primary);
  color: white;
  margin-left: 6px;
  font-weight: 600;
}
.meal-pfc { font-size: 0.75rem; color: var(--muted); margin-top: 3px; }
.meal-kcal { font-weight: 800; font-size: 1rem; color: var(--primary); white-space: nowrap; }
.meal-delete {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0 0 0 10px;
  transition: color 0.2s;
}
.meal-delete:hover { color: var(--danger); }

.no-meal {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 20px 0;
}

/* ===== クイック食品 ===== */
.quick-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 600;
}
.quick-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.quick-btn {
  padding: 6px 12px;
  background: #f0faf0;
  border: 1.5px solid var(--primary);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.quick-btn:hover { background: var(--primary); color: white; }

/* ===== PFC入力グリッド ===== */
.pfc-inputs { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

/* ===== フッター ===== */
.site-footer {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
}
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ===== 画面ヘッダー ===== */
.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.screen-header h2 { font-size: 1.1rem; }