/* ─── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:       #4CAF82;
  --green-light: #E8F7F0;
  --green-dark:  #2E8B5A;
  --orange:      #FF7043;
  --orange-light:#FFF3F0;
  --blue:        #5C9EFF;
  --blue-light:  #EEF4FF;
  --purple:      #9B7EF5;
  --yellow:      #FFD166;
  --red:         #FF5252;
  --bg:          #F5F7FA;
  --white:       #FFFFFF;
  --text:        #1A2238;
  --text-mid:    #4A5568;
  --text-soft:   #9AA5B4;
  --border:      #E8EDF2;
  --shadow:      0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.13);
  --radius:      16px;
  --radius-sm:   10px;
  --header-h:    64px;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ─── Pages ─────────────────────────────────────── */
.page {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  overflow: hidden;
}

.page.active {
  transform: translateX(0);
  z-index: 2;
}

.page.slide-out {
  transform: translateX(-30%);
  z-index: 1;
}

/* ─── Header ─────────────────────────────────────── */
.header {
  height: var(--header-h);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  box-shadow: 0 1px 0 var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-icon { font-size: 26px; }

.app-title {
  font-family: 'Quicksand', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

/* Cart button */
.cart-btn {
  position: relative;
  background: var(--green-light);
  border: none;
  border-radius: 50%;
  width: 46px;
  height: 46px;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, background 0.15s;
}
.cart-btn:active { transform: scale(0.92); }

.cart-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  background: var(--orange);
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
  transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
}
.cart-badge.bump { transform: scale(1.4); }

/* Back & clear buttons */
.back-btn {
  background: none;
  border: none;
  font-size: 32px;
  color: var(--green);
  cursor: pointer;
  font-weight: 700;
  padding: 0 8px 0 0;
  line-height: 1;
  transition: opacity 0.15s;
}
.back-btn:active { opacity: 0.5; }

.clear-btn {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
  opacity: 0.7;
  transition: opacity 0.15s;
}
.clear-btn:active { opacity: 0.4; }

/* ─── Search ─────────────────────────────────────── */
.search-container {
  padding: 14px 16px 10px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 50px;
  padding: 0 14px;
  gap: 8px;
  transition: border-color 0.2s;
}
.search-wrapper:focus-within {
  border-color: var(--green);
  background: var(--white);
}

.search-icon { font-size: 16px; color: var(--text-soft); flex-shrink: 0; }

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: 'Nunito', sans-serif;
  font-size: 15px;
  color: var(--text);
  padding: 11px 0;
  outline: none;
}
.search-input::placeholder { color: var(--text-soft); }

.add-new-btn {
  background: var(--green);
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
  transition: background 0.15s, transform 0.15s;
}
.add-new-btn:active { background: var(--green-dark); transform: scale(0.9); }

/* ─── Category Chips ─────────────────────────────── */
.chips-container {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  flex-shrink: 0;
  background: var(--white);
  scrollbar-width: none;
}
.chips-container::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  padding: 5px 13px;
  border-radius: 50px;
  border: 2px solid var(--border);
  background: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-mid);
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
}
.chip:active { transform: scale(0.94); }
.chip.active {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* ─── Product List ───────────────────────────────── */
.product-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px 100px;
  -webkit-overflow-scrolling: touch;
}

/* Category section header inside list */
.cat-header {
  font-size: 12px;
  font-weight: 800;
  color: var(--text-soft);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 18px 0 8px;
}
.cat-header:first-child { padding-top: 4px; }

/* Product card */
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 5px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: border-color 0.18s, box-shadow 0.18s, transform 0.12s;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.product-card:active { transform: scale(0.98); }
.product-card.checked {
  border-color: var(--green);
  background: var(--green-light);
}

.product-emoji {
  font-size: 26px;
  width: 36px;
  text-align: center;
  flex-shrink: 0;
}

.product-info {
  flex: 1;
  min-width: 0;
}

.product-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* .product-cat-label — eliminado, ya no se muestra en la lista */

/* Custom checkbox */
.custom-check {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2.5px solid var(--border);
  background: var(--white);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s cubic-bezier(0.34,1.56,0.64,1);
  font-size: 14px;
}
.product-card.checked .custom-check {
  background: var(--green);
  border-color: var(--green);
}

/* Edit button on card */
.product-edit-btn {
  font-size: 16px;
  opacity: 0.35;
  flex-shrink: 0;
  padding: 4px;
  transition: opacity 0.15s;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 6px;
}
.product-edit-btn:active { opacity: 0.8; }

/* ─── Loading / Empty ────────────────────────────── */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 0;
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 600;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-soft);
}
.empty-state .empty-emoji { font-size: 48px; display: block; margin-bottom: 12px; }
.empty-state p { font-size: 15px; font-weight: 600; margin-bottom: 16px; }

/* ─── Cart Page ──────────────────────────────────── */
.cart-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px 100px;
  -webkit-overflow-scrolling: touch;
}

.cart-cat-section { margin-bottom: 8px; }

.cart-cat-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-soft);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 16px 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cart-cat-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.cart-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 5px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: all 0.2s;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.cart-item.bought {
  opacity: 0.45;
  border-color: var(--green);
}
.cart-item.bought .cart-item-name {
  text-decoration: line-through;
  color: var(--text-soft);
}

.cart-item-emoji { font-size: 24px; width: 32px; text-align: center; flex-shrink: 0; }
.cart-item-name { flex: 1; font-size: 15px; font-weight: 700; color: var(--text); }

.cart-check {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2.5px solid var(--border);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: all 0.18s cubic-bezier(0.34,1.56,0.64,1);
}
.cart-item.bought .cart-check {
  background: var(--green);
  border-color: var(--green);
}

.empty-cart {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 20px;
  text-align: center;
}
.empty-icon { font-size: 56px; }
.empty-cart p { font-size: 16px; font-weight: 600; color: var(--text-soft); }

/* ─── Add/Edit Form ──────────────────────────────── */
.form-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 100px;
}

.form-group { margin-bottom: 22px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 800;
  color: var(--text-soft);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Nunito', sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--white);
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
.form-input:focus { border-color: var(--green); }
.form-input::placeholder { color: var(--text-soft); }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M0 0l6 8 6-8z' fill='%239AA5B4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.emoji-row { display: flex; flex-direction: column; gap: 10px; }
.emoji-input { font-size: 24px; text-align: center; width: 80px !important; }

.emoji-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.emoji-suggestions span {
  font-size: 26px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.12s;
}
.emoji-suggestions span:active { border-color: var(--green); transform: scale(0.9); }

.cat-input-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.cat-input-row .form-input { flex: 1; }

.toggle-cat-btn {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--green);
  background: var(--green-light);
  color: var(--green-dark);
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}
.toggle-cat-btn:active { background: var(--green); color: var(--white); }

/* ─── Buttons ────────────────────────────────────── */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--green);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  font-weight: 800;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.12s;
  letter-spacing: 0.3px;
}
.btn-primary:active { background: var(--green-dark); transform: scale(0.98); }

.btn-danger {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius);
  background: transparent;
  color: var(--red);
  font-family: 'Nunito', sans-serif;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid var(--red);
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 12px;
}
.btn-danger:active { background: #fff0f0; }

/* ─── Toast ──────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 9999;
  white-space: nowrap;
  max-width: 90vw;
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── Category color accent map ──────────────────── */
.chip[data-cat="Frutas y Verduras"],
.chip[data-cat="Frutas"],
.chip[data-cat="Verduras"] { --chip-color: #4CAF82; }

.chip[data-cat="Carnicería"],
.chip[data-cat="Carne"] { --chip-color: #FF7043; }

.chip[data-cat="Pescadería"],
.chip[data-cat="Pescado"] { --chip-color: #5C9EFF; }

.chip[data-cat="Lácteos"] { --chip-color: #FFD166; }

.chip[data-cat="Panadería"],
.chip[data-cat="Pan"] { --chip-color: #C8A96E; }

.chip[data-cat="Limpieza"],
.chip[data-cat="Hogar"] { --chip-color: #9B7EF5; }

.chip[data-cat="Bebidas"] { --chip-color: #5C9EFF; }

/* ─── Header actions group ───────────────────────── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ─── Frecuentes button ──────────────────────────── */
.frecuentes-btn {
  background: #FFF8E1;
  border: none;
  border-radius: 50%;
  width: 46px;
  height: 46px;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, background 0.15s;
  flex-shrink: 0;
}
.frecuentes-btn:active { transform: scale(0.92); background: #FFE082; }

/* ─── Toggle switch (frecuente en formulario) ────── */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.toggle-desc {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-mid);
}

.toggle-switch {
  position: relative;
  width: 50px;
  height: 28px;
  border-radius: 50px;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: background 0.25s;
  flex-shrink: 0;
  padding: 0;
}
.toggle-switch[aria-pressed="true"] { background: var(--green); }

.toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
  display: block;
}
.toggle-switch[aria-pressed="true"] .toggle-knob {
  transform: translateX(22px);
}