:root {
  --primary: #2e7d32;
  --primary-light: #e8f5e9;
  --primary-dark: #1b5e20;
  --surface: #ffffff;
  --surface-dim: #f5f5f5;
  --surface-container: #fafafa;
  --on-surface: #1c1b1f;
  --on-surface-variant: #49454f;
  --outline: #e0e0e0;
  --outline-variant: #f0f0f0;
  --error: #d32f2f;
  --on-primary: #ffffff;
  --shadow-1: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-2: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 100px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--surface-dim);
  max-width: 520px;
  margin: 0 auto;
  padding: 0 16px 88px;
  -webkit-tap-highlight-color: transparent;
  color: var(--on-surface);
}

/* --- Header --- */
.header {
  position: sticky; top: 0; z-index: 5;
  background: var(--primary-dark);
  margin: 0 -16px; padding: 20px 20px 16px;
  color: var(--on-primary);
}
.header h1 {
  font-size: 22px; font-weight: 700; letter-spacing: -0.3px;
}
.header .fechas {
  font-size: 13px; opacity: 0.85; margin-top: 4px; font-weight: 400;
}
.counter {
  font-size: 12px; color: var(--on-surface-variant);
  padding: 12px 4px 8px; font-weight: 500; letter-spacing: 0.2px;
}

/* --- Collapsible card (menu + sections) --- */
.card {
  background: var(--surface); border-radius: var(--radius-md);
  margin-bottom: 10px; box-shadow: var(--shadow-1); overflow: hidden;
}
.card-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; cursor: pointer; user-select: none;
  transition: background 0.15s;
}
.card-toggle:active { background: var(--surface-container); }
.card-toggle h2 {
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.6px; color: var(--on-surface-variant);
}
.card-toggle .badge {
  font-size: 11px; font-weight: 500; color: var(--on-surface-variant);
  background: var(--outline-variant); border-radius: var(--radius-full);
  padding: 2px 10px; margin-left: 8px;
}
.card-toggle .arrow {
  font-size: 10px; color: var(--on-surface-variant);
  transition: transform 0.25s ease;
  flex-shrink: 0; margin-left: 8px;
}
.card.collapsed .arrow { transform: rotate(-90deg); }
.card.collapsed .card-body { display: none; }

/* --- Menu card --- */
.menu-card .card-toggle {
  background: var(--primary-light);
}
.menu-card .card-toggle h2 { color: var(--primary-dark); }
.menu-dia {
  padding: 12px 16px; border-bottom: 1px solid var(--outline-variant);
}
.menu-dia:last-child { border-bottom: none; }
.menu-dia-nombre {
  font-size: 11px; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 6px;
}
.menu-comida {
  font-size: 13px; color: var(--on-surface-variant);
  line-height: 1.6; display: flex; gap: 6px;
}
.menu-comida .label {
  font-weight: 600; color: var(--on-surface-variant);
  min-width: 24px; flex-shrink: 0;
}
.menu-comida .plato { color: var(--on-surface); }

/* --- Section card (aisle) --- */
.section-card .card-toggle {
  border-bottom: 1px solid var(--outline-variant);
  padding: 12px 16px;
}

/* --- Items --- */
.item {
  display: flex; align-items: center;
  padding: 10px 12px 10px 16px;
  border-bottom: 1px solid var(--outline-variant);
  gap: 8px; transition: background 0.12s;
}
.item:last-child { border-bottom: none; }
.item:active { background: var(--surface-container); }

.item input[type="checkbox"] {
  width: 20px; height: 20px; accent-color: var(--primary);
  cursor: pointer; flex-shrink: 0; border-radius: 4px;
}

.item-info { flex: 1; min-width: 0; cursor: pointer; }
.item-name {
  font-size: 14px; font-weight: 500; color: var(--on-surface);
  word-break: break-word;
}
.item.checked .item-name {
  text-decoration: line-through; color: #bdbdbd;
}

/* Recetas dropdown */
.item-recetas {
  display: none; padding: 6px 16px 10px 44px;
  background: var(--surface-container);
  border-bottom: 1px solid var(--outline-variant);
}
.item-recetas.visible { display: block; }
.item-recetas-title {
  font-size: 11px; font-weight: 600; color: var(--on-surface-variant);
  text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 4px;
}
.item-recetas ul {
  list-style: none; padding: 0; margin: 0;
}
.item-recetas li {
  font-size: 12px; color: var(--on-surface-variant); line-height: 1.6;
  padding-left: 12px; position: relative;
}
.item-recetas li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--primary);
}

/* --- Qty controls --- */
.qty-controls {
  display: flex; align-items: center; gap: 2px; flex-shrink: 0;
}
.qty-btn {
  width: 28px; height: 28px; border: none;
  background: var(--surface-container); border-radius: var(--radius-full);
  font-size: 16px; color: var(--on-surface-variant); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.12s;
}
.qty-btn:active { background: var(--outline); }
.qty-value {
  width: 54px; text-align: center; font-size: 12px; font-weight: 500;
  color: var(--on-surface); padding: 4px 2px;
  border: 1.5px solid transparent; border-radius: var(--radius-sm);
  background: transparent; font-family: inherit;
}
.qty-value:focus {
  outline: none; border-color: var(--primary);
  background: var(--primary-light);
}

/* --- Super selector with icons --- */
.super-btn {
  width: 28px; height: 28px; border: 1.5px solid var(--outline);
  border-radius: var(--radius-sm); background: var(--surface);
  cursor: pointer; padding: 3px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.15s;
}
.super-btn:active { border-color: var(--primary); }
.super-btn img { width: 18px; height: 18px; }

/* --- Discard btn --- */
.discard-btn {
  width: 28px; height: 28px; border: none; background: none;
  color: #ccc; font-size: 20px; cursor: pointer; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: color 0.15s;
}
.discard-btn:active { color: var(--error); }

/* --- Descartados --- */
.descartados { margin-top: 16px; display: none; }
.descartados.visible { display: block; }
.descartados-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 4px; cursor: pointer; user-select: none;
}
.descartados-header h2 {
  font-size: 13px; font-weight: 600; color: #bdbdbd;
}
.descartados-header .arrow {
  color: #bdbdbd; font-size: 10px; transition: transform 0.2s;
}
.descartados.collapsed .arrow { transform: rotate(-90deg); }
.descartados.collapsed .descartados-list { display: none; }
.descartados-list {
  background: var(--surface); border-radius: var(--radius-md);
  box-shadow: var(--shadow-1); overflow: hidden;
}
.discarded-item {
  display: flex; align-items: center; padding: 10px 16px;
  border-bottom: 1px solid var(--outline-variant); opacity: 0.45;
}
.discarded-item:last-child { border-bottom: none; }
.discarded-item .nombre {
  flex: 1; font-size: 13px; color: var(--on-surface-variant);
  text-decoration: line-through;
}
.restore-btn {
  border: none; background: var(--primary-light); color: var(--primary);
  font-size: 12px; font-weight: 600; cursor: pointer;
  padding: 4px 12px; border-radius: var(--radius-full);
  transition: background 0.12s;
}
.restore-btn:active { background: #c8e6c9; }

/* --- Copy FAB --- */
.copy-btn {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  width: calc(100% - 32px); max-width: 488px;
  padding: 16px; background: var(--primary);
  color: var(--on-primary); border: none; border-radius: var(--radius-lg);
  font-size: 15px; font-weight: 600; letter-spacing: 0.3px;
  cursor: pointer; box-shadow: var(--shadow-2); z-index: 10;
  transition: background 0.2s, box-shadow 0.2s;
}
/* --- Build info --- */
.build-info {
  text-align: center; font-size: 11px; color: #bdbdbd;
  padding: 24px 0 8px; letter-spacing: 0.2px;
}

.copy-btn:active {
  background: var(--primary-dark);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.copy-btn.copied {
  background: #388e3c;
}