/* ==========================================================================
   Shopping List App Styles
   Design: Utilitarian Tactile - High contrast, mobile-first, paper receipt meets app
   ========================================================================== */

:root {
  /* Colors - High contrast for outdoor readability */
  --color-bg: #f5f3ef;
  --color-bg-card: #ffffff;
  --color-bg-dark: #1a1a1a;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-text-inverse: #f5f3ef;
  --color-border: #d4d0c8;
  --color-border-dark: #1a1a1a;

  /* Accents */
  --color-accent: #2563eb;
  --color-success: #059669;
  --color-success-bg: #d1fae5;
  --color-danger: #dc2626;
  --color-danger-bg: #fee2e2;
  --color-warning: #d97706;

  /* Store colors */
  --color-mercadona: #00a650;
  --color-consum: #f97316;

  /* Typography */
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

  /* Sizing */
  --tap-target: 48px;
  --border-radius: 12px;
  --border-radius-sm: 8px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ==========================================================================
   App Layout
   ========================================================================== */

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 600px;
  margin: 0 auto;
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  color: var(--color-text);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
}

.header__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-mercadona), var(--color-consum));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.header__link:hover {
  background: var(--color-bg-card);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.header__stats {
  display: flex;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

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

.stat--highlight {
  color: var(--color-mercadona);
  font-weight: 600;
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main {
  flex: 1;
  padding: var(--space-md);
  padding-bottom: calc(var(--tap-target) + var(--space-xl) * 2);
}

/* ==========================================================================
   Add Form
   ========================================================================== */

.add-form {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.add-form__input {
  flex: 1;
  height: var(--tap-target);
  padding: 0 var(--space-md);
  font-family: var(--font-display);
  font-size: 1.125rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.add-form__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.add-form__input::placeholder {
  color: var(--color-text-muted);
}

.add-form__btn {
  width: var(--tap-target);
  height: var(--tap-target);
  border: none;
  border-radius: var(--border-radius);
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  font-size: 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.add-form__btn:active {
  transform: scale(0.95);
  background: var(--color-accent);
}

/* ==========================================================================
   Catalog Picker
   ========================================================================== */

.catalog-picker {
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
  animation: slideDown var(--transition-normal);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.catalog-picker__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.catalog-picker__close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.catalog-picker__list {
  max-height: 300px;
  overflow-y: auto;
}

.catalog-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.catalog-item:last-child {
  border-bottom: none;
}

.catalog-item:active {
  background: var(--color-bg);
}

.catalog-item__img {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-sm);
  object-fit: cover;
  background: var(--color-bg);
}

.catalog-item__info {
  flex: 1;
  min-width: 0;
}

.catalog-item__name {
  font-size: 1rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-item__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.catalog-item__price {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
}

/* ==========================================================================
   Shopping List
   ========================================================================== */

.list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.list-item {
  display: flex;
  align-items: center;
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast);
  animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.list-item--purchased {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.list-item--cancelled {
  opacity: 0.5;
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}

.list-item--removing {
  animation: removeItem var(--transition-normal) forwards;
}

@keyframes removeItem {
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* Check button */
.list-item__check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  min-height: var(--tap-target);
  border: none;
  background: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.list-item__check:active {
  background: rgba(0, 0, 0, 0.05);
}

.list-item__checkbox {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-border-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.list-item--purchased .list-item__checkbox {
  background: var(--color-success);
  border-color: var(--color-success);
  color: white;
}

.list-item--cancelled .list-item__checkbox {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: white;
}

/* Item content */
.list-item__content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-sm) var(--space-xs);
  min-width: 0;
}

.list-item__name {
  font-size: 1.125rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-item--purchased .list-item__name,
.list-item--cancelled .list-item__name {
  text-decoration: line-through;
}

.list-item__meta {
  display: flex;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.list-item__store {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 0.65rem;
}

.list-item__store--mercadona {
  color: var(--color-mercadona);
}

.list-item__store--consum {
  color: var(--color-consum);
}

/* Price */
.list-item__prices {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  padding: 0 var(--space-sm);
  min-width: 70px;
}

.list-item__price {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
}

.list-item__price-ref {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 1.2;
}

/* Refresh button */
.list-item__refresh {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-height: 32px;
  border: none;
  background: none;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  transition: color var(--transition-fast), transform var(--transition-fast);
  border-radius: 50%;
}

.list-item__refresh:hover {
  color: var(--color-accent);
  background: rgba(37, 99, 235, 0.1);
}

.list-item__refresh:active {
  transform: rotate(180deg);
}

.list-item__refresh--loading {
  animation: spin 1s linear infinite;
}

/* Quantity controls */
.list-item__quantity {
  display: flex;
  align-items: center;
  gap: 1px;
  margin-right: 4px;
}

.list-item__qty-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.list-item__qty-btn:active {
  background: var(--color-bg);
}

.list-item__qty-value {
  min-width: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Delete button */
.list-item__delete {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--tap-target);
  min-height: var(--tap-target);
  border: none;
  background: none;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.list-item__delete:active {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

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

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

.empty-state__icon {
  font-size: 4rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.empty-state__text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.empty-state__hint {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg);
  border-top: 2px solid var(--color-border);
  max-width: 600px;
  margin: 0 auto;
}

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

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  height: var(--tap-target);
  padding: 0 var(--space-lg);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast);
  flex: 1;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  border-color: var(--color-bg-dark);
}

.btn--secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border-color: var(--color-border);
}

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

.btn__icon {
  font-size: 1.25rem;
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  animation: fadeIn var(--transition-fast);
}

.modal__content {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--color-bg-card);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  animation: modalIn var(--transition-normal);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.modal__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.modal__actions {
  display: flex;
  gap: var(--space-sm);
}

/* ==========================================================================
   Backoffice Specific Styles
   ========================================================================== */

.backoffice {
  padding: var(--space-lg);
}

.backoffice .header {
  margin: calc(var(--space-lg) * -1);
  margin-bottom: var(--space-lg);
}

.section {
  margin-bottom: var(--space-xl);
}

.section__title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.search-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.search-form__row {
  display: flex;
  gap: var(--space-sm);
}

.search-form__input {
  flex: 1;
  height: var(--tap-target);
  padding: 0 var(--space-md);
  font-family: var(--font-display);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg-card);
}

.search-form__input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-form__select {
  height: var(--tap-target);
  padding: 0 var(--space-md);
  font-family: var(--font-display);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg-card);
  cursor: pointer;
}

.search-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.search-result {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
}

.search-result__img {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-sm);
  object-fit: cover;
  background: var(--color-bg);
}

.search-result__info {
  flex: 1;
  min-width: 0;
}

.search-result__name {
  font-weight: 500;
  margin-bottom: 2px;
}

.search-result__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.search-result__price {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
}

.search-result__add {
  width: var(--tap-target);
  height: var(--tap-target);
  border: 2px solid var(--color-success);
  border-radius: var(--border-radius);
  background: none;
  color: var(--color-success);
  font-size: 1.5rem;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.search-result__add:active {
  background: var(--color-success);
  color: white;
}

.search-result__add:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Catalog table */
.catalog-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.catalog-table th,
.catalog-table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.catalog-table th {
  font-weight: 600;
  background: var(--color-bg);
}

.catalog-table td {
  background: var(--color-bg-card);
}

.catalog-table__store {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
}

.catalog-table__price {
  font-family: var(--font-mono);
  font-weight: 600;
}

.catalog-table__actions {
  text-align: right;
}

.catalog-table__delete {
  padding: var(--space-xs) var(--space-sm);
  border: none;
  background: none;
  color: var(--color-danger);
  cursor: pointer;
  font-size: 1rem;
}

.catalog-table__ref-price {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.catalog-table__refresh {
  padding: var(--space-xs) var(--space-sm);
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.2s;
}

.catalog-table__refresh:hover {
  transform: scale(1.1);
}

.catalog-table__refresh--loading {
  animation: spin 1s linear infinite;
}

/* Loading state */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  color: var(--color-text-muted);
}

.loading::after {
  content: '';
  width: 20px;
  height: 20px;
  margin-left: var(--space-sm);
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Password prompt */
.password-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  gap: var(--space-md);
}

.password-prompt__input {
  width: 200px;
  height: var(--tap-target);
  padding: 0 var(--space-md);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  text-align: center;
  letter-spacing: 0.2em;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
}

.password-prompt__input:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: calc(var(--tap-target) + var(--space-xl) + var(--space-md));
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn var(--transition-normal);
  z-index: 500;
}

.toast--success {
  background: var(--color-success);
}

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

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (min-width: 600px) {
  .header {
    padding: var(--space-lg) var(--space-xl);
  }

  .main {
    padding: var(--space-lg);
  }

  .footer {
    padding: var(--space-lg);
  }
}

/* ==========================================================================
   Store Icons
   ========================================================================== */

.store-icon {
  width: 12px;
  height: 12px;
  vertical-align: middle;
  margin-right: 2px;
  border-radius: 2px;
}

/* ==========================================================================
   Autocomplete
   ========================================================================== */

.autocomplete {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border: 2px solid var(--color-accent);
  border-top: none;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  max-height: 300px;
  overflow-y: auto;
  animation: slideDown var(--transition-fast);
}

.autocomplete__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.autocomplete__item:last-child {
  border-bottom: none;
}

.autocomplete__item:active,
.autocomplete__item--selected {
  background: var(--color-bg);
  outline: 2px solid var(--color-accent);
}

.autocomplete__item--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.autocomplete__img {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-sm);
  object-fit: cover;
  background: var(--color-bg);
}

.autocomplete__info {
  flex: 1;
  min-width: 0;
}

.autocomplete__name {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.autocomplete__meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
}

.autocomplete__price {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
}