:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent: #f59e0b;
  --success: #10b981;
  --warn: #f59e0b;
  --error: #ef4444;
  --border: #e5e7eb;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Hiragino Sans', 'Yu Gothic UI', 'Meiryo', system-ui, -apple-system, sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

.app-header {
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  color: white;
  padding: 24px 16px;
  text-align: center;
}
.app-header h1 { margin: 0; font-size: 1.4rem; font-weight: 700; }
.app-header .subtitle { margin: 4px 0 0; font-size: 0.9rem; opacity: 0.9; }

.app-main {
  max-width: 800px;
  margin: -16px auto 0;
  padding: 16px;
  position: relative;
}

/* Cafeteria tabs */
.cafeteria-tabs {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 6px;
  margin-bottom: 14px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.cafeteria-tab {
  flex: 1 0 auto;
  min-width: max-content;
  padding: 10px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  --tab-accent: var(--primary);
}
.cafeteria-tab:hover { background: #f3f4f6; color: var(--text); }
.cafeteria-tab.active {
  background: var(--tab-accent);
  color: white;
}
.cafeteria-tab-all { font-weight: 700; }
.cafeteria-tab-all.active {
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
}

/* Cafeteria meta card(s) */
.cafeteria-meta {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
.cafeteria-meta-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px 16px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--meta-accent, var(--primary));
  display: grid;
  gap: 2px;
  font-size: 0.85rem;
}
.cafeteria-meta-card strong { font-size: 0.95rem; }
.cafeteria-meta-card .meta-line { color: var(--muted); }
.cafeteria-meta-card .meta-source {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.82rem;
  margin-top: 2px;
}
.cafeteria-meta-card .meta-source:hover { text-decoration: underline; }

.controls {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.control-row:last-of-type { margin-bottom: 0; }

.control-row label,
.control-row .control-label {
  font-weight: 600;
  font-size: 0.9rem;
  min-width: 72px;
}

input[type=range] {
  flex: 1;
  min-width: 140px;
  accent-color: var(--primary);
}

#budget-value {
  font-weight: 700;
  color: var(--primary);
  min-width: 72px;
  text-align: right;
}

.segmented label,
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.88rem;
  cursor: pointer;
  background: #f9fafb;
  user-select: none;
}
.segmented label:has(input:checked),
.checkbox:has(input:checked) {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.segmented input,
.checkbox input { accent-color: var(--primary); }

/* Nutrition toggles (ハードフィルタ・複数選択可) */
.nutrition-toggles { align-items: flex-start; }
.nutrition-toggles .toggle {
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.nutrition-toggles .toggle:hover { background: #eef2ff; }
.nutrition-toggles .toggle.active {
  background: var(--success);
  color: white;
  border-color: var(--success);
}

.primary-button {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 14px 18px;
  font-size: 1rem;
  font-weight: 700;
  color: white;
  background: var(--primary);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
}
.primary-button:hover { background: var(--primary-hover); }
.primary-button:active { transform: scale(0.99); }

.status {
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
}
.status[data-kind=warn] { color: var(--warn); }
.status[data-kind=error] { color: var(--error); }

/* Results */
.results { display: grid; gap: 16px; }

/* Cafeteria group (一覧タブ: 食堂ごと 2 案ずつのグループ表示) */
.cafeteria-group {
  display: grid;
  gap: 12px;
  padding: 12px;
  background: var(--surface);
  border-radius: var(--radius);
  border-left: 5px solid var(--group-accent, var(--primary));
  box-shadow: var(--shadow);
}
.cafeteria-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border);
}
.cafeteria-group-header .cafeteria-badge {
  font-size: 0.85rem;
  padding: 4px 12px;
  font-weight: 700;
}
.cafeteria-group-sub {
  font-size: 0.78rem;
  color: var(--muted);
}
.cafeteria-group-empty {
  margin: 0;
  padding: 12px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}
.cafeteria-group .combo-card {
  box-shadow: none;
  border-left-color: var(--group-accent, var(--primary));
}

.combo-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.combo-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}
.combo-label {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
}
.combo-pattern {
  margin-left: 8px;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef2ff;
  color: #4338ca;
  font-weight: 600;
}
.combo-score {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  color: white;
  border-radius: 12px;
  padding: 8px 14px;
}
.score-number { font-size: 1.6rem; font-weight: 800; line-height: 1; }
.score-caption { font-size: 0.7rem; line-height: 1.1; }

.combo-items {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.combo-item {
  display: grid;
  grid-template-columns: 48px 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}
.combo-item:last-child { border-bottom: none; }
.combo-item img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 8px;
  background: #f3f4f6;
}
.combo-item .name { font-weight: 600; display: block; }
.combo-item .price { font-weight: 700; color: var(--text); }
.combo-item .kcal { font-size: 0.8rem; color: var(--muted); text-align: right; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  color: white;
  margin-right: 6px;
  vertical-align: middle;
}

.cafeteria-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  color: white;
  margin-right: 6px;
  vertical-align: middle;
  font-weight: 600;
}

.combo-summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0 14px;
  font-size: 0.95rem;
}
.combo-summary strong { font-weight: 800; }

.nutrition-bars { display: grid; gap: 6px; }
.nut-row {
  display: grid;
  grid-template-columns: 78px 1fr 80px 80px;
  gap: 8px;
  align-items: center;
  font-size: 0.8rem;
}
.nut-label { color: var(--muted); }
.nut-bar {
  position: relative;
  height: 10px;
  background: #f3f4f6;
  border-radius: 999px;
  overflow: hidden;
}
.nut-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  transition: width 0.3s;
}
.nut-value { font-weight: 700; text-align: right; }
.nut-daily { color: var(--muted); text-align: right; font-size: 0.72rem; }
.est-mark {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 4px;
  background: #fef3c7;
  color: #92400e;
  font-weight: 700;
  vertical-align: top;
  cursor: help;
}
.nut-row.estimated .nut-fill {
  background-image: repeating-linear-gradient(45deg, transparent, transparent 3px, rgba(255,255,255,0.35) 3px, rgba(255,255,255,0.35) 6px);
}

/* Score breakdown */
.score-breakdown {
  margin-top: 12px;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
}
.score-breakdown summary {
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 600;
  padding: 4px 0;
}
.score-breakdown summary:hover { color: var(--text); }
.breakdown-body {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.78rem;
}
.breakdown-row {
  display: grid;
  grid-template-columns: 78px 1fr 130px;
  gap: 8px;
  align-items: center;
}
.breakdown-label { color: var(--muted); }
.breakdown-bar {
  position: relative;
  height: 8px;
  background: #f3f4f6;
  border-radius: 999px;
  overflow: hidden;
}
.breakdown-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #60a5fa 0%, #2563eb 100%);
  border-radius: 999px;
}
.breakdown-values {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-size: 0.74rem;
}
.breakdown-total {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
  text-align: right;
  font-size: 0.82rem;
}
.breakdown-total strong { color: var(--primary); font-size: 0.95rem; }

/* Menu browser */
.menu-browser {
  margin-top: 24px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.menu-browser summary {
  cursor: pointer;
  font-weight: 700;
  padding: 4px 0;
}
.menu-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0;
}
.chip {
  border: 1px solid var(--border);
  background: #f9fafb;
  color: var(--text);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  cursor: pointer;
}
.chip.active { background: var(--primary); color: white; border-color: var(--primary); }

.menu-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}
.menu-list .menu-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  align-items: center;
}
.menu-list .menu-item img {
  width: 48px; height: 48px;
  object-fit: cover; border-radius: 8px; background: #f3f4f6;
}
.menu-list .name { display: block; font-weight: 600; font-size: 0.9rem; }
.menu-list .meta { display: block; font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.menu-list .empty { color: var(--muted); padding: 10px; }

.app-footer {
  max-width: 800px;
  margin: 40px auto 20px;
  padding: 20px 16px 60px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
.app-footer a { color: var(--primary); }
.app-footer .small { font-size: 0.75rem; opacity: 0.85; margin-top: 10px; }

@media (max-width: 500px) {
  .nut-row { grid-template-columns: 66px 1fr 64px; }
  .nut-daily { display: none; }
  .combo-item { grid-template-columns: 40px 1fr auto; }
  .combo-item .kcal { display: none; }
  .breakdown-row { grid-template-columns: 64px 1fr 108px; }
  .cafeteria-tab { padding: 8px 10px; font-size: 0.82rem; }
}