body {
  min-width: 320px;
  background: var(--pa-background);
  color: var(--pa-text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  overscroll-behavior-y: contain;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

.pa-app {
  width: 100%;
  max-width: var(--pa-page-width);
  min-width: 0;
}

button,
input,
textarea {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.pa-app {
  width: min(100%, var(--pa-page-width));
  min-height: 100vh;
  margin: 0 auto;
  padding: 16px 14px calc(112px + env(safe-area-inset-bottom));
}

/* =========================
   Header
========================= */

.pa-header {
  margin-bottom: 16px;
}

.pa-header__content {
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  padding: 15px;
  box-shadow: var(--pa-shadow);
}

.pa-header__eyebrow {
  margin: 0 0 4px;
  color: var(--pa-primary);
  font-size: 13px;
  font-weight: 700;
}

.pa-header__title {
  margin: 0;
  font-size: 21px;
  line-height: 1.35;
}

.pa-header__summary {
  margin: 5px 0 0;
  color: var(--pa-text-secondary);
  font-size: 13px;
}

/* =========================
   Toolbar / Search
========================= */

.pa-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.pa-search {
  display: grid;
  gap: 5px;
}

.pa-search__label {
  color: var(--pa-text-secondary);
  font-size: 13px;
  font-weight: 600;
}

.pa-search__input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  outline: none;
  background: var(--pa-surface);
  padding: 10px 12px;
  font-size: 16px;
}

.pa-search__input:focus {
  border-color: var(--pa-primary);
  box-shadow: 0 0 0 3px var(--pa-primary-soft);
}

/* =========================
   Main Groups
========================= */

.pa-group-list {
  display: grid;
  gap: 14px;
}

.pa-group {
  overflow: hidden;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  box-shadow: var(--pa-shadow);
}

.pa-group__toggle,
.pa-subcategory__toggle {
  width: 100%;
  border: 0;
  text-align: left;
  touch-action: manipulation;
}

.pa-group__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  background: var(--pa-group-primary);
  padding: 12px 14px;
  color: var(--pa-group-primary-text);
}

.pa-group__toggle:hover {
  background: var(--pa-group-primary-hover);
}

.pa-group__heading {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 9px;
}

.pa-group__arrow,
.pa-subcategory__arrow {
  flex: 0 0 auto;
  color: currentColor;
  transition: transform 160ms ease;
}

.pa-group--collapsed .pa-group__arrow,
.pa-subcategory--collapsed .pa-subcategory__arrow {
  transform: rotate(-90deg);
}

.pa-group__name {
  margin: 0;
  color: currentColor;
  font-size: 17px;
  font-weight: 700;
}

.pa-group__count {
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  padding: 5px 9px;
  color: currentColor;
  font-size: 12px;
}

.pa-group__body {
  border-top: 1px solid var(--pa-border);
  background: #f8faf8;
  padding: 10px;
}

.pa-group--collapsed .pa-group__body {
  display: none;
}

/* =========================
   Subcategories
========================= */

.pa-subcategory-list {
  display: grid;
  gap: 10px;
}

.pa-subcategory {
  overflow: hidden;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  background: var(--pa-surface);
}

.pa-subcategory__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 48px;
  background: var(--pa-group-secondary);
  padding: 10px 12px;
  color: var(--pa-group-secondary-text);
}

.pa-subcategory__toggle:hover {
  background: var(--pa-group-secondary-hover);
}

.pa-subcategory__heading {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 8px;
}

.pa-subcategory__name {
  margin: 0;
  color: currentColor;
  font-size: 15px;
  font-weight: 700;
}

.pa-subcategory__count {
  color: currentColor;
  font-size: 12px;
}

.pa-subcategory__body {
  background: #ffffff;
  padding: 9px;
}

.pa-subcategory--collapsed .pa-subcategory__body {
  display: none;
}

/* =========================
   Product Lists
========================= */

.pa-product-list {
  display: grid;
  gap: 9px;
}

.pa-product-card {
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  background: var(--pa-surface);
  padding: 12px;
}

.pa-product-card--selected {
  border-color: var(--pa-primary);
  background: linear-gradient(
    0deg,
    var(--pa-primary-soft),
    var(--pa-surface) 46%
  );
}

.pa-product-card__info {
  min-width: 0;
}

.pa-product-card__title-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 7px;
}

.pa-product-card__name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}

.pa-product-card__stock {
  color: var(--pa-text-secondary);
  font-size: 13px;
  white-space: nowrap;
}

.pa-product-card__incoming {
  color: var(--pa-primary);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.pa-product-card__limits {
  margin: 2px 0 0;
  color: var(--pa-text-muted);
  font-size: 12px;
}

/* =========================
   Quantity Controls
========================= */

.pa-quantity-row {
  display: grid;
  grid-template-columns: auto 48px minmax(72px, 104px) 48px 64px;
  gap: 8px;
  align-items: center;
  margin-top: 11px;
}

.pa-quantity-row__label {
  color: var(--pa-text-secondary);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.pa-quantity-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  min-width: 48px;
  height: 48px;
  min-height: 48px;
  border: 1px solid var(--pa-border-strong);
  border-radius: var(--pa-radius-small);
  background: var(--pa-surface);
  padding: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.pa-quantity-button:hover {
  border-color: var(--pa-primary);
}

.pa-quantity-button:active {
  border-color: var(--pa-primary);
  background: var(--pa-primary-soft);
  transform: scale(0.96);
}

.pa-quantity-button--max {
  width: 64px;
  min-width: 64px;
  color: var(--pa-primary);
  font-size: 13px;
}

.pa-quantity-input {
  width: 100%;
  min-width: 0;
  height: 48px;
  min-height: 48px;
  border: 1px solid var(--pa-border-strong);
  border-radius: var(--pa-radius-small);
  outline: none;
  background: var(--pa-surface);
  padding: 8px;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  touch-action: manipulation;
}

.pa-quantity-input:focus {
  border-color: var(--pa-primary);
  box-shadow: 0 0 0 3px var(--pa-primary-soft);
}

.pa-quantity-input::-webkit-inner-spin-button,
.pa-quantity-input::-webkit-outer-spin-button {
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
}

.pa-quantity-input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

/* =========================
   General Buttons
========================= */

.pa-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 0;
  border-radius: var(--pa-radius-medium);
  padding: 10px 14px;
  font-weight: 700;
  white-space: nowrap;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.pa-button:active:not(:disabled) {
  transform: scale(0.98);
}

.pa-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.pa-button--primary {
  background: var(--pa-primary);
  color: #ffffff;
}

.pa-button--primary:hover:not(:disabled) {
  background: var(--pa-primary-hover);
}

.pa-button--secondary {
  border: 1px solid var(--pa-border);
  background: var(--pa-surface);
  color: var(--pa-text-secondary);
}

.pa-button--clear {
  color: var(--pa-danger);
}

.pa-button--clear:hover:not(:disabled) {
  border-color: var(--pa-danger);
  background: var(--pa-danger-soft);
}

/* =========================
   Empty State
========================= */

.pa-empty-state {
  border: 1px dashed var(--pa-border-strong);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  padding: 32px 16px;
  color: var(--pa-text-secondary);
  text-align: center;
}

/* =========================
   Note to Vendor
========================= */

.pa-note-to-vendor {
  width: 100%;
  max-width: none;
  min-width: 0;
  box-sizing: border-box;

  margin-top: 16px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  padding: 14px;
  box-shadow: var(--pa-shadow);
}

.pa-note-to-vendor__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.pa-note-to-vendor__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.pa-note-to-vendor__description {
  margin: 3px 0 0;
  color: var(--pa-text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

.pa-note-to-vendor__optional {
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--pa-primary-soft);
  padding: 4px 8px;
  color: var(--pa-primary);
  font-size: 11px;
  font-weight: 700;
}

.pa-note-to-vendor__textarea {
  display: block;
  width: 100%;
  min-height: 92px;
  resize: vertical;
  border: 1px solid var(--pa-border-strong);
  border-radius: var(--pa-radius-medium);
  outline: none;
  background: var(--pa-surface);
  padding: 11px 12px;
  color: var(--pa-text);
  font: inherit;
  font-size: 15px;
  line-height: 1.55;
}

.pa-note-to-vendor__textarea::placeholder {
  color: var(--pa-text-muted);
}

.pa-note-to-vendor__textarea:focus {
  border-color: var(--pa-primary);
  box-shadow: 0 0 0 3px var(--pa-primary-soft);
}

.pa-note-to-vendor__footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  color: var(--pa-text-muted);
  font-size: 11px;
  line-height: 1.45;
}

#note-to-vendor-count {
  flex: 0 0 auto;
  white-space: nowrap;
}

#note-to-vendor {
  display: block;
  width: 100% !important;
  max-width: none !important;
  min-width: 0;
  min-height: 110px;
  box-sizing: border-box;
  resize: vertical;
}

/* =========================
   Cancel Purchase Session
========================= */

.pa-cancel-order-section {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-top: 22px;
  border-top: 1px solid var(--pa-border);
  padding: 20px 12px 10px;
  text-align: center;
}

.pa-cancel-order-section__text {
  max-width: 420px;
  margin: 0;
  color: var(--pa-text-secondary);
  font-size: 13px;
  line-height: 1.55;
}

.pa-cancel-order-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid var(--pa-danger);
  border-radius: var(--pa-radius-medium);
  background: transparent;
  padding: 10px 18px;
  color: var(--pa-danger);
  font-weight: 700;
  white-space: nowrap;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.pa-cancel-order-button:hover {
  background: var(--pa-danger-soft);
}

.pa-cancel-order-button:active {
  background: var(--pa-danger-soft);
  transform: scale(0.98);
}

/* =========================
   Review View
========================= */

.pa-review-view {
  padding-bottom: 24px;
}

.pa-review-header {
  margin-bottom: 16px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  padding: 15px;
  box-shadow: var(--pa-shadow);
}

.pa-review-header__eyebrow {
  margin: 0 0 4px;
  color: var(--pa-primary);
  font-size: 13px;
  font-weight: 700;
}

.pa-review-header__title {
  margin: 0;
  font-size: 21px;
  line-height: 1.35;
}

.pa-review-header__summary {
  margin: 5px 0 0;
  color: var(--pa-text-secondary);
  font-size: 13px;
}

.pa-review-item-list {
  display: grid;
  gap: 10px;
}

.pa-review-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  background: var(--pa-surface);
  padding: 12px;
}

.pa-review-item__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--pa-primary-soft);
  color: var(--pa-primary);
  font-size: 13px;
  font-weight: 700;
}

.pa-review-item__content {
  min-width: 0;
}

.pa-review-item__name {
  margin: 0;
  font-size: 15px;
  line-height: 1.45;
}

.pa-review-item__quantity {
  margin: 5px 0 0;
  color: var(--pa-text-secondary);
  font-size: 13px;
}

.pa-review-item__quantity strong {
  margin-left: 4px;
  color: var(--pa-text);
  font-size: 15px;
}

.pa-review-note {
  margin-top: 14px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  background: var(--pa-surface);
  padding: 13px 14px;
}

.pa-review-note__label {
  margin: 0 0 6px;
  color: var(--pa-primary);
  font-size: 12px;
  font-weight: 700;
}

.pa-review-note__text {
  margin: 0;
  color: var(--pa-text);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.pa-review-total {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-medium);
  background: var(--pa-group-secondary);
  padding: 14px;
}

.pa-review-total__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--pa-group-secondary-text);
  font-size: 14px;
}

.pa-review-total__row + .pa-review-total__row {
  border-top: 1px solid rgba(40, 95, 53, 0.14);
  padding-top: 10px;
}

.pa-review-total__row strong {
  font-size: 16px;
}

.pa-review-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.pa-review-actions .pa-button {
  width: 100%;
  min-height: 52px;
}

/* =========================
   Session State
========================= */

.pa-session-state {
  margin-top: 24px;
  border: 1px solid var(--pa-border);
  border-radius: var(--pa-radius-large);
  background: var(--pa-surface);
  padding: 28px 18px;
  text-align: center;
  box-shadow: var(--pa-shadow);
}

.pa-session-state__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--pa-primary-soft);
  color: var(--pa-primary);
  font-size: 25px;
  font-weight: 700;
}

.pa-session-state__title {
  margin: 0;
  font-size: 19px;
}

.pa-session-state__description {
  max-width: 440px;
  margin: 8px auto 0;
  color: var(--pa-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* =========================
   Bottom Action Bar
========================= */

.pa-bottom-bar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: min(100%, var(--pa-page-width));
  margin: 0 auto;
  border-top: 1px solid var(--pa-border);
  background: rgba(255, 255, 255, 0.96);
  padding: 12px 14px calc(12px + env(safe-area-inset-bottom));
  backdrop-filter: blur(10px);
}

.pa-bottom-bar__summary {
  display: grid;
  flex: 0 0 auto;
  gap: 2px;
  color: var(--pa-text-secondary);
  font-size: 12px;
}

.pa-bottom-bar__summary strong {
  color: var(--pa-text);
  font-size: 15px;
}

.pa-bottom-bar__actions {
  display: grid;
  grid-template-columns: 88px minmax(110px, 1fr);
  gap: 8px;
  align-items: stretch;
}

.pa-bottom-bar__actions .pa-button {
  width: 100%;
  height: 52px;
  min-height: 52px;
  padding: 0 14px;
  line-height: 1;
}

/* =========================
   Mobile
========================= */

@media (max-width: 560px) {
  .pa-app {
    width: 100%;
    max-width: 100%;
    padding-right: 10px;
    padding-left: 10px;
  }

  .pa-quantity-row {
    grid-template-columns:
      44px
      minmax(0, 1fr)
      44px
      58px;
    gap: 6px;
  }

  .pa-quantity-row__label {
    grid-column: 1 / -1;
  }

  .pa-quantity-button {
    width: 100%;
    min-width: 0;
  }

  .pa-quantity-button--max {
    width: 100%;
    min-width: 0;
  }

  .pa-quantity-input {
    width: 100%;
    min-width: 0;
  }

  .pa-cancel-order-section {
    margin-top: 18px;
    padding-right: 6px;
    padding-left: 6px;
  }

  .pa-cancel-order-button {
    width: 100%;
  }

  .pa-review-actions {
    grid-template-columns: 1fr;
  }

  .pa-review-actions .pa-button {
    min-height: 52px;
  }

  .pa-bottom-bar {
    align-items: center;
    gap: 10px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .pa-bottom-bar__summary {
    justify-content: center;
  }

  .pa-bottom-bar__actions {
    flex: 1;
    grid-template-columns: 82px minmax(92px, 1fr);
  }

  .pa-note-to-vendor {
  padding: 12px;
}

.pa-note-to-vendor__header {
  gap: 8px;
}

.pa-note-to-vendor__footer {
  gap: 8px;
}

.pa-note-to-vendor__footer > :first-child {
  max-width: 75%;
}
}