:root {
  --bg: #f7faf7;
  --surface: #ffffff;
  --text: #1a1d1a;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-2: #16a34a;
  --danger: #dc2626;
  --warn: #f59e0b;
  --warn-bg: #fffbeb;
  --danger-bg: #fef2f2;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.06);
  --radius: 12px;
  --max-width: 1100px;
  --topbar-h: 64px;
}
[data-theme="dark"] {
  --bg: #0b0f0b;
  --surface: #151a15;
  --text: #e5e7e5;
  --muted: #9ca3af;
  --border: #1f2420;
  --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 6px 16px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 max(16px, calc(50% - var(--max-width)/2));
  background: color-mix(in srgb, var(--bg), transparent 0%);
  backdrop-filter: saturate(1.2) blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand h1 { font-size: 18px; margin: 0; letter-spacing: -0.2px; }
.logo { font-size: 22px; line-height: 1; }
.tabs { margin-left: auto; display: flex; gap: 6px; }
.tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}
.tab:hover { color: var(--text); background: rgba(127,127,127,0.08); }
.tab.active { color: var(--text); background: rgba(127,127,127,0.12); border-color: var(--border); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px 40px;
}
.panel { display: none; }
.panel.active { display: block; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.panel-header h2 { margin: 0; font-size: 20px; }
.muted { color: var(--muted); font-size: 14px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 6px; }

.add-form, .shop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
}
.add-form input,
.add-form select,
.shop-actions input,
.shop-actions select {
  height: 38px;
  padding: 0 10px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
.add-form input[type="date"] { width: 170px; }
.add-form input, .shop-actions input { flex: 1 1 160px; min-width: 140px; }

button, .primary, .danger {
  appearance: none;
  border: 1px solid transparent;
  background: var(--surface);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}
.primary { background: var(--accent); color: white; border-color: transparent; }
.danger { background: var(--danger); color: white; border-color: transparent; }
button:hover { opacity: 0.92; }

.table-wrap { overflow: auto; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.3px; }
.data-table tr:last-child td { border-bottom: none; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.ok { background: #e8f5e9; color: #146c2e; }
.badge.warn { background: var(--warn-bg); color: #7c4a03; }
.badge.expired { background: var(--danger-bg); color: #7f1d1d; }

.meal-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.meal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.meal-card h3 { margin: 0 0 6px; font-size: 16px; }
.meal-card .muted { font-size: 13px; }
.meal-card .match { color: var(--accent-2); font-weight: 700; font-size: 13px; margin-top: 8px; display: inline-block; }

.shop-list { display: flex; flex-direction: column; gap: 8px; }
.shop-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; box-shadow: var(--shadow);
}
.shop-item.purchased { opacity: 0.6; }
.shop-item .name { flex: 1; font-weight: 600; }
.shop-item .qty { color: var(--muted); font-size: 13px; min-width: 70px; }
.shop-item .remove { background: transparent; border: none; color: var(--danger); font-weight: 700; padding: 4px 8px; }
.shop-item.purchased .remove { color: var(--muted); }

.settings-grid { display: grid; gap: 18px; }
.setting {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.setting h3 { margin: 0 0 6px; font-size: 16px; }
.setting p { margin: 0 0 10px; color: var(--muted); font-size: 14px; }

.input-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.input-row input[type="number"] {
  width: 90px; height: 38px; padding: 0 10px;
  background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 8px; font: inherit;
}
.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.toggle input { width: 18px; height: 18px; }

.empty { text-align: center; color: var(--muted); padding: 24px; font-size: 14px; }

.footer {
  text-align: center;
  color: var(--muted);
  padding: 24px 16px;
  font-size: 13px;
  border-top: 1px solid var(--border);
}

dialog {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  max-width: 520px;
  width: calc(100% - 32px);
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0,0,0,0.4); }
dialog menu { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }
dialog h3 { margin: 0 0 10px; }
.recipe-meta { color: var(--muted); font-size: 14px; margin-bottom: 10px; }
.recipe-list { margin: 0; padding-left: 18px; }
.recipe-list li { margin: 6px 0; }

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; height: auto; padding: 12px 16px; }
  .tabs { width: 100%; justify-content: space-between; }
  .stats { grid-template-columns: 1fr; }
}