:root {
  --green: #2d5a3d;
  --green-bg: #f4f9f6;
  --text: #1a1a1a;
  --text-muted: #8a8a85;
  --text-dim: #7a7a75;
  --border: #eae7e2;
  --border-light: #f2f0eb;
  --bg: #f9f8f6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-loading,
.app-error {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
}

.app {
  min-height: 100vh;
  padding: 24px 16px 60px;
}

.app__container {
  max-width: 900px;
  margin: 0 auto;
}

.app__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  gap: 12px;
  flex-wrap: wrap;
}

.app__header h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
}

.app__empty {
  color: var(--text-muted);
  font-size: 14px;
  padding: 20px 0;
}

/* Search */
.search-bar {
  position: relative;
  margin-bottom: 18px;
}

.search-bar__input {
  width: 100%;
  font-size: 15px;
  padding: 12px 40px 12px 14px;
  border-radius: 10px;
  border: 1px solid #d8d5d0;
  background: #fff;
  font-family: inherit;
  color: var(--text);
}

.search-bar__input:focus {
  outline: none;
  border-color: var(--green);
}

.search-bar__clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: none;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 10px;
  line-height: 1;
}

/* Summary */
.summary-bar {
  display: flex;
  gap: 24px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.summary-bar__stat {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 140px;
}

.summary-bar__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.summary-bar__value {
  font-size: 22px;
  font-weight: 700;
  color: var(--green);
  font-variant-numeric: tabular-nums;
}

/* Export / action buttons */
.export-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.btn {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: 8px;
  padding: 11px 18px;
  cursor: pointer;
  border: 1px solid transparent;
  min-height: 44px;
  transition: opacity 0.15s, background 0.15s;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--green);
  color: #fff;
}

.btn--secondary {
  background: #fff;
  border-color: #d8d5d0;
  color: var(--text-dim);
}

.btn--danger {
  background: #fff;
  border-color: #e2c4c0;
  color: #a3403a;
}

/* Category grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 26px 32px;
}

.category__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.category__title {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #9a9a95;
}

.category__title--complete {
  color: var(--green);
}

.category__count {
  font-size: 11px;
  color: #b8b6b0;
  font-variant-numeric: tabular-nums;
}

.category__card {
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  overflow: hidden;
}

/* Product row */
.product-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.15s;
}

.product-row:last-child {
  border-bottom: none;
}

.product-row--selected {
  background: var(--green-bg);
}

.product-row__name {
  font-size: 13px;
  color: var(--text);
  line-height: 1.4;
}

.product-row--selected .product-row__name {
  color: #2a2a28;
  font-weight: 500;
}

.product-row__controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.product-row__qty {
  min-width: 20px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.qty-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid #d8d5d0;
  background: #fff;
  color: var(--text);
  font-size: 17px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  padding: 0;
}

.qty-btn:active:not(:disabled) {
  background: var(--green-bg);
  border-color: var(--green);
}

.qty-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Touch devices get larger tap targets */
@media (pointer: coarse) {
  .qty-btn {
    width: 38px;
    height: 38px;
    font-size: 19px;
  }

  .btn {
    min-height: 48px;
  }
}

@media (max-width: 480px) {
  .app {
    padding: 18px 12px 48px;
  }

  .category-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .app__header h1 {
    font-size: 19px;
  }

  .export-buttons .btn {
    flex: 1 1 auto;
  }
}