:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --text: #000000;
  --muted: #3d5a6c;

  --blue-700: #1565c0;
  --blue-600: #1e88c4;
  --blue-500: #42a5f5;
  --teal-500: #18a89a;
  --green-700: #1a9b5c;
  --green-600: #22c07a;
  --green-500: #4cd995;

  --accent: #18a89a;
  --accent-blue: #1e88c4;
  --accent-green: #1a9b5c;
  --accent-gradient: linear-gradient(135deg, #1565c0 0%, #1e88c4 38%, #18a89a 68%, #1a9b5c 100%);
  --accent-soft: #e8f6f3;
  --accent-soft-blue: #e3f2fd;
  --accent-soft-green: #e8f8f0;

  --danger: #c0392b;
  --flag: #e6a817;
  --star: #f0b429;
  --border: #c5dce8;
  --border-green: #b8e0cc;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --header-h: 56px;
  --footer-h: 72px;
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg);
}

/* Shop header */
.shop-header,
.edit-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: var(--header-h);
  padding: 8px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.shop-header::after,
.edit-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.icon-btn {
  min-width: 44px;
  min-height: 44px;
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  border-radius: 8px;
  color: var(--accent-blue);
}

.list-title-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0 8px;
  color: var(--text);
}

.list-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.list-chevron {
  color: var(--accent-green);
  font-size: 0.75rem;
}

.status-bar {
  padding: 6px 12px;
}

.status-pill {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--accent-soft-blue);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
}

.status-pill.offline {
  color: var(--green-700);
  border-color: var(--border-green);
  background: var(--accent-soft-green);
}

.shop-main,
.edit-main {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px 16px;
  padding-bottom: calc(16px + var(--safe-bottom));
}

.shop-footer {
  position: sticky;
  bottom: 0;
  padding: 12px;
  padding-bottom: calc(12px + var(--safe-bottom));
  background: linear-gradient(transparent, var(--bg) 20%);
  border-top: 1px solid var(--border);
}

.category-block {
  margin-bottom: 12px;
}

.category-block:nth-child(odd) .category-header {
  background: var(--accent-soft-blue);
  border: 1px solid var(--border);
}

.category-block:nth-child(even) .category-header {
  background: var(--accent-soft-green);
  border: 1px solid var(--border-green);
}

.category-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 48px;
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  background: var(--accent-soft-blue);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(21, 101, 192, 0.06);
  color: var(--text);
}

.category-block:nth-child(odd) .cat-meta {
  color: var(--blue-600);
}

.category-block:nth-child(even) .cat-meta {
  color: var(--green-700);
}

.cat-meta {
  font-weight: 500;
  font-size: 0.9rem;
}

.category-items {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.category-items.collapsed {
  display: none;
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 12px 14px;
  background: var(--surface);
  border-radius: 10px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-blue);
  touch-action: pan-y;
  user-select: none;
}

.category-block:nth-child(even) .item-row {
  border-left-color: var(--accent-green);
}

.item-row.crossed .item-name {
  text-decoration: line-through;
  opacity: 0.55;
}

.item-main {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.item-name {
  font-size: 1.05rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  font-size: 0.85rem;
  flex-shrink: 0;
}

.badge-star {
  color: var(--star);
}

.badge-flag {
  color: var(--flag);
}

.item-qty {
  flex-shrink: 0;
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--accent-soft-blue);
  color: var(--blue-700);
  font-weight: 600;
  cursor: pointer;
}

.category-block:nth-child(even) .item-qty {
  background: var(--accent-soft-green);
  border-color: var(--border-green);
  color: var(--green-700);
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 48px 16px;
}

/* Buttons */
.btn {
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  cursor: pointer;
}

.btn-block {
  width: 100%;
  display: block;
  margin-top: 8px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.22);
}

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

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-text {
  border: none;
  background: none;
  color: var(--accent-blue);
  font-weight: 600;
  min-height: 44px;
  cursor: pointer;
}

.btn-danger-text {
  color: var(--danger);
}

.finish-panel {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid var(--border-green);
}

.estimated-total {
  font-size: 1.1rem;
  margin: 0 0 4px;
  color: var(--text);
}

.estimate-note {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Edit screen */
.edit-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  flex: 1;
  text-align: center;
}

.edit-section {
  margin-bottom: 24px;
}

.field-label,
.section-heading {
  display: block;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
}

.cat-subheading {
  font-size: 0.95rem;
  color: var(--accent-green);
  margin: 12px 0 6px;
}

.text-input,
.qty-input {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 16px;
}

.text-input:focus,
.qty-input:focus {
  outline: 2px solid var(--teal-500);
  outline-offset: 1px;
  border-color: var(--teal-500);
}

.add-row {
  display: grid;
  grid-template-columns: 1fr 64px auto;
  gap: 8px;
  align-items: center;
}

.list-admin-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-bottom: 8px;
}

.suggestion-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.suggestion-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.star-toggle {
  min-width: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--accent-soft-blue);
  font-size: 1.2rem;
  cursor: pointer;
}

.star-toggle.on {
  color: var(--star);
  border-color: var(--star);
  background: #fff9e6;
}

.suggestion-add {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  color: var(--text);
}

.sug-name {
  font-weight: 600;
}

.sug-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.edit-item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.edit-item-main {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  color: var(--text);
}

.edit-item-main:disabled {
  cursor: default;
  opacity: 0.7;
}

.edit-item-label {
  font-weight: 500;
}

.item-photo-thumb {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--accent-soft);
}

.suggestion-edit {
  min-width: 52px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--accent-soft-green);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-green);
  cursor: pointer;
}

.item-edit-modal .item-edit-sub {
  margin: -8px 0 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.item-edit-photo-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.item-edit-photo-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: var(--accent-soft-blue);
  overflow: hidden;
}

.item-edit-photo {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
}

.item-edit-photo-placeholder {
  color: var(--muted);
  font-size: 0.95rem;
}

.preview-photo {
  width: 100%;
  max-width: 200px;
  max-height: 200px;
  object-fit: cover;
  border-radius: 12px;
  margin: 0 auto 12px;
  display: block;
  border: 1px solid var(--border);
}

.muted {
  color: var(--muted);
}

.file-label {
  text-align: center;
  cursor: pointer;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  padding-bottom: calc(16px + var(--safe-bottom));
}

.modal-overlay.hidden {
  display: none;
}

.modal-sheet {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border-radius: 16px 16px 12px 12px;
  padding: 20px;
  max-height: 85vh;
  overflow-y: auto;
  border: 1px solid var(--border);
}

.modal-sheet::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 16px 16px 0 0;
  background: var(--accent-gradient);
}

.preview-modal {
  text-align: center;
}

.preview-icon {
  color: var(--teal-500);
  margin-bottom: 8px;
}

.preview-title {
  margin: 0 0 16px;
  font-size: 1.35rem;
  color: var(--text);
}

.preview-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  text-align: left;
  margin: 0 0 12px;
}

.preview-meta dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.preview-meta dd {
  margin: 0;
  font-weight: 600;
  color: var(--text);
}

.preview-hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.confirm-text {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text);
}

.confirm-sub {
  color: var(--muted);
  margin: 0 0 16px;
}

.confirm-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.modal-form-actions {
  margin-top: 16px;
}

.text-input-modal .text-input {
  margin-bottom: 4px;
}

.list-picker-modal .btn-primary.btn-block {
  margin-top: 8px;
}

.modal-heading {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: var(--text);
}

.category-pick-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
  max-height: 50vh;
  overflow-y: auto;
}

.category-pick {
  min-height: 44px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--accent-soft-blue);
  cursor: pointer;
  text-align: left;
  color: var(--text);
}

.category-pick:nth-child(even) {
  background: var(--accent-soft-green);
  border-color: var(--border-green);
}

.category-pick.active {
  border-color: var(--teal-500);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--teal-500);
}

.qty-control {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin: 20px 0;
}

.qty-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--accent-soft-blue);
  color: var(--blue-700);
  font-size: 1.5rem;
  cursor: pointer;
}

.qty-value {
  font-size: 1.75rem;
  font-weight: 700;
  min-width: 40px;
  text-align: center;
  color: var(--text);
}

.list-pick-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.list-pick {
  min-height: 48px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--accent-soft-blue);
  text-align: left;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
}

.list-pick:nth-child(even) {
  background: var(--accent-soft-green);
  border-color: var(--border-green);
}

.list-pick.active {
  border-color: var(--teal-500);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--teal-500);
}

.app-toast {
  position: fixed;
  left: 50%;
  bottom: calc(80px + var(--safe-bottom));
  transform: translateX(-50%) translateY(12px);
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(135deg, #1565c0, #1a9b5c);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  z-index: 200;
  transition: opacity 0.2s, transform 0.2s;
}

.app-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}