/* Block: Nutrition Facts Panel
   FDA-style nutrition information display
*/

.nutrition-facts {
/* 1. CONTAINER: Sets the stage, but does NOT scroll */
  background: var(--bg-card-translucent);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  
  /* Layout: Lock height and use flex to manage children */
  height: clamp(600px, 80vh, calc(100vh - 4rem)); 
  display: flex;
  flex-direction: column;
  overflow: hidden; /* Clips children to radius */
  margin-block: var(--space-md);
}

.nutrition-facts__title {
  padding-block: var(--space-xs);
  border-bottom: 1px solid var(--border-muted);
}

/* Variant switcher — food name header with chevron toggle */
.nutrition-facts__food {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  padding-block: var(--space-xxs);
}

/* Only show pointer cursor when variants exist (per D-10) */
.nutrition-facts__food[data-variants="true"] {
  cursor: pointer;
  user-select: none;
}

.nutrition-facts__food-label {
  flex: 1;
}

.nutrition-facts__food-chevron {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

/* Chevron rotates 180deg when variant list is expanded (per D-09) */
.nutrition-facts__food[data-variants="true"][aria-expanded="true"] .nutrition-facts__food-chevron {
  transform: rotate(180deg);
}

/* Focus visibility for keyboard navigation */
.nutrition-facts__food[data-variants="true"]:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Hover feedback only when variants exist */
@media (hover: hover) {
  .nutrition-facts__food[data-variants="true"]:hover .nutrition-facts__food-chevron {
    color: var(--text-primary);
  }
}

/* Variant list container — collapsed by default (per D-07) */
.nutrition-facts__variant-list {
  display: none;
  flex-direction: column;
  gap: var(--space-xs);
  padding-block: var(--space-xs);
  padding-inline-start: var(--space-sm);
  border-inline-start: 2px solid var(--border-muted);
  margin-block-end: var(--space-sm);
  max-height: 40vh;
  overflow-y: auto;
}

/* Expanded state (per D-07: data-state pattern from CUBE CSS) */
.nutrition-facts__variant-list[data-state="expanded"] {
  display: flex;
}

/* Individual variant item — clickable block */
.nutrition-facts__variant-item {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--transition-fast);
}

@media (hover: hover) {
  .nutrition-facts__variant-item:hover {
    background-color: var(--bg-hover);
  }
}

.nutrition-facts__variant-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-block-end: var(--space-xxs);
}

/* Compact badges inside variant items */
.nutrition-facts__variant-item .badge-cluster {
  margin-block: var(--space-xxs);
}

/* Badge cluster inside card — align start, compact spacing */
.nutrition-facts .badge-cluster {
  justify-content: flex-start;
  margin-block: var(--space-xs);
  flex-shrink: 0;
}

/* Badges on card surface — solid bg instead of translucent hero blur */
.nutrition-facts .detail-badge:not([data-type="category"]) {
  background: var(--bg-surface-muted);
  backdrop-filter: none;
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
}

/* Macro Pictogram Row */
.macro-pictogram-row {
  flex-shrink: 0; /* Keeps this pinned at top too */
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-block: var(--space-md);
}

.macro-pictogram-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
}

.macro-pictogram-item svg {
  filter: drop-shadow(var(--shadow-pictogram));
}

.macro-val {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 700;
  margin-block-start: var(--space-xxs);
}

.macro-lbl {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-spacing: 1.333;
}

/* Macro Ratio Bar */
.macro-ratio-bar {
  display: flex;
  height: 1.1em;
  width: 100%;
  border-radius: var(--radius-pill);
  overflow: hidden;
  background-color: transparent;
  margin-block-end: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.ratio-segment {
  height: 100%;
}

.ratio-segment[data-macro="protein"] {
  background: linear-gradient(to bottom,
    hsl(var(--clr-magenta-400)) 0%,
    hsl(var(--clr-magenta-600) / 0.9) 90%
  );
}

.ratio-segment[data-macro="carbs"] {
  background: linear-gradient(to bottom,
    hsl(var(--clr-green-400)) 0%,
    hsl(var(--clr-green-600) / 0.9) 90%
  );
}

.ratio-segment[data-macro="fat"] {
  background: linear-gradient(to bottom,
    hsl(var(--clr-yellow-500)) 0%,
    hsl(var(--clr-yellow-600) / 0.9) 90%
  );
}

/* Nutrient List */
.nutrition-facts__content {
/* CONTENT: Fills remaining space and handles scrolling */
  flex-grow: 1;
  /* Add space between content and scrollbar if needed */
  padding-inline-end: var(--space-md); 
}


.nutrition-facts__item {
  display: flex;
  justify-content: space-between;
  padding-block: var(--space-xs);
  border-bottom: 1px solid var(--border-muted);
}

.nutrition-dashboard-card .nutrition-facts__item.energy-row {
  border-bottom: none;
}

.nutrition-facts__item:last-child {
  border-bottom: none;
}

.nutrition-facts__label {
  font-weight: 400;
}

.nutrition-facts__item.energy-row * {
  font-weight: 700;
}

.nutrition-facts__item[data-nutrient-type="carbohydrate_by_difference"] * {
  /* color: var(--macro-carbs); */
  font-weight: 700;
  text-shadow: var(--shadow-contrast);
  letter-spacing: 0.06em;
}

.nutrition-facts__item[data-nutrient-type="protein"] * {
  /* color: var(--macro-protein); */
  font-weight: 700;
  text-shadow: var(--shadow-contrast);
  letter-spacing: 0.06em;
}

.nutrition-facts__item[data-nutrient-type="total_lipid_fat"] * {
  /* color: var(--macro-fat); */
  font-weight: 700;
  text-shadow: var(--shadow-contrast);
  letter-spacing: 0.06em;
}

.nutrition-facts__item[data-quality="excellent"] .nutrition-facts__label {
  font-weight: 700;
}

.nutrition-facts__value {
  padding-inline-start: 1em;
  width: 6em;
  font-weight: 500;
  text-align: end;
  display: inline-block;
}

.rda-pill {
  font-weight: 500;
  text-align: end;
}

/* ==========================================================================
   Serving Info Block
   Display serving size with label and amount
   ========================================================================== */

.serving-info__label {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--text-secondary);
  padding-inline-end: 0.75em;
}

.serving-info__amount {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--text-primary);
}

/* Compact variant for dashboard card */
.nutrition-dashboard-card .serving-info {
  margin-block-end: var(--space-sm);
  padding: var(--space-xxs) var(--space-xs);
}

.nutrition-dashboard-card .serving-info__amount {
  font-size: var(--fs-sm);
}

.nutrition-card__footer {
  display: flex;
  padding-block: var(--space-xs) 0;
  align-content: center;
  align-items: baseline;
  justify-content: center;
}


/* ==========================================================================
   Serving Controls - Interactive portion selector
   Typography-first design: "Nutrition per 1 Cup (120g)"
   ========================================================================== */

.serving-controls {
  display: flex;
  align-items: baseline;
  gap: var(--space-xxs);
  width: 100%;
  
  /* Remove "box" styling - transparent and minimal */
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  
  margin-block-end: var(--space-xxs);
  padding-block: var(--space-xs);
  border-bottom: 1px solid var(--border-muted);
  flex-shrink: 0;
}

.serving-controls__value-group {
  display: flex;
  align-items: baseline;
}

.serving-info__label {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  color: var(--text-muted);
}

.quantity-input {
  /* Dimensions & Layout */
  width: 6ch;
  margin: 0;

  /* Typography - Hero Size */
  font-size: var(--fs-md);
  font-weight: 600;

  text-align: center;
  color: var(--brand-primary);
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

/* Hide spinners/browser chrome */
.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.quantity-input[type=number] {
  -moz-appearance: textfield;
}

.unit-selector {
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--text-primary);
  padding-block: 0;
  padding-inline: 0.6em 1.6em;
  /* Minimalist styling */
  margin: 0;
  cursor: pointer;
  width: auto;
  transition: border-color var(--transition-fast), color var(--transition-fast);
  /* Hide native browser dropdown arrow */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  /* Custom chevron via inline SVG background */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.4em center;
  background-size: 0.6em;
}

.unit-display {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 600;
  padding-inline-start: 0.5em;
  color: var(--text-primary);
}

.serving-grams {
  font-family: var(--font-body);
  font-size: var(--fs-md);
  color: var(--text-muted);
  font-weight: 400;
  margin-inline-start: var(--space-xs);
}