:root {
  --bg: #FAF7F2;
  --surface: #FFFFFF;
  --primary: #2F6B4F;
  --primary-dark: #244F3B;
  --accent-light: #E7F0EA;
  --coral: #E2653B;
  --text: #1F2320;
  --text-secondary: #6B6F6A;
  --border: #E7E2D9;
  --success: #3B7A57;
  --warning: #D98C2B;
  --warning-light: #FBEEDC;
  --danger: #C24A3D;
  --danger-light: #FBEAE7;
  --radius-card: 20px;
  --radius-input: 14px;
}

* { box-sizing: border-box; }

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

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 20px 120px;
  min-height: 100vh;
}

/* ---------- Header ---------- */

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.brand { display: flex; flex-direction: column; gap: 4px; }

.brand-mark {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 13px;
  color: var(--text-secondary);
  max-width: 320px;
}

.user-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 160px;
}

.user-field label {
  font-size: 11px;
  color: var(--text-secondary);
}

.user-field input {
  height: 36px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14px;
  color: var(--text);
}

/* ---------- Tabs ---------- */

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px;
}

.tab-btn {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 10px;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--accent-light);
  color: var(--primary-dark);
}

/* ---------- Panels ---------- */

.panel { display: none; flex-direction: column; gap: 16px; }
.panel.active { display: flex; }

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(31, 35, 32, 0.04);
  margin-bottom: 16px;
}

.card-title {
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 12px;
}

textarea, input[type="text"], input[type="number"], input[type="date"], select {
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 12px 14px;
}

textarea {
  resize: vertical;
  min-height: 64px;
}

textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 20px;
  border-radius: var(--radius-input);
  border: none;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 12px;
  width: 100%;
}

.btn:disabled { opacity: 0.5; cursor: default; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }

.btn-secondary {
  background: var(--accent-light);
  color: var(--primary-dark);
  width: auto;
  margin-top: 0;
  height: 44px;
  flex-shrink: 0;
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  margin-left: 8px;
}

/* ---------- Status / banners ---------- */

.status-line {
  min-height: 18px;
  font-size: 13px;
  color: var(--text-secondary);
  margin: 8px 0 0;
}

.status-error { color: var(--danger); }

.banner {
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 14px;
}

.banner-info { background: var(--accent-light); color: var(--primary-dark); }

.success-banner {
  background: var(--accent-light);
  color: var(--primary-dark);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  font-size: 14px;
}

/* ---------- Item cards ---------- */

.items-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }

.item-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  background: var(--surface);
}

.item-card.low-confidence {
  background: var(--warning-light);
  border-color: var(--warning);
}

.item-top {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.item-top input[data-field="product"] {
  flex: 1;
  font-weight: 500;
}

.item-delete {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
}

.item-delete:hover { background: var(--danger-light); color: var(--danger); }
.item-delete:disabled { opacity: 0.3; cursor: default; }

.item-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.item-field { display: flex; flex-direction: column; gap: 4px; }

.item-field label {
  font-size: 11px;
  color: var(--text-secondary);
}

.item-field input {
  padding: 8px 10px;
  font-size: 14px;
  border-radius: 10px;
}

.confidence-note {
  font-size: 12px;
  color: var(--warning);
  margin-top: 8px;
}

/* ---------- Field row ---------- */

.field-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.field-row label {
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.field-row select, .field-row input[type="date"] {
  width: auto;
  flex: 1;
  min-width: 140px;
}

/* ---------- Sticky bar ---------- */

.sticky-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  padding: 12px 20px calc(12px + env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  z-index: 20;
}

.sticky-totals {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.sticky-kcal { font-size: 20px; font-weight: 600; color: var(--text); }
.sticky-macros { font-size: 12px; color: var(--text-secondary); }

.sticky-bar .btn { width: auto; margin-top: 0; min-width: 220px; }

/* ---------- Diary ---------- */

.bento { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

.bento-kcal { display: flex; flex-direction: column; align-items: flex-start; min-width: 140px; }

.bento-number {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--text);
}

.bento-macros { display: flex; gap: 12px; flex: 1; flex-wrap: wrap; }

.bento-tile {
  background: var(--accent-light);
  border-radius: 14px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  min-width: 90px;
}

.bento-number-m { font-size: 20px; font-weight: 500; color: var(--primary-dark); }

.bento-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.diary-meals { display: flex; flex-direction: column; gap: 12px; }

.meal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
}

.meal-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.meal-type-label {
  font-weight: 500;
  font-size: 15px;
  color: var(--primary-dark);
}

.meal-time { font-size: 12px; color: var(--text-secondary); }

.meal-items { font-size: 14px; color: var(--text-secondary); margin: 0 0 8px; }

.meal-kcal { font-size: 16px; font-weight: 600; }
.meal-macros { font-size: 12px; color: var(--text-secondary); margin-left: 8px; }

.empty-note {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  padding: 24px 0;
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 96px;
  transform: translateX(-50%);
  background: rgba(31, 35, 32, 0.9);
  backdrop-filter: blur(12px);
  color: #fff;
  padding: 12px 20px;
  border-radius: 14px;
  font-size: 14px;
  z-index: 30;
  max-width: 90vw;
  text-align: center;
}

/* ---------- Responsive ---------- */

@media (min-width: 720px) {
  .app { padding: 32px 24px 120px; }
  .item-grid { grid-template-columns: repeat(5, 1fr); }
}

@media (max-width: 480px) {
  .item-grid { grid-template-columns: repeat(2, 1fr); }
  .sticky-bar { flex-direction: column; align-items: stretch; }
  .sticky-bar .btn { width: 100%; }
}