/**
 * Calculadora de Calorias dos Alimentos Brasileiros
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 * Todos os direitos reservados
 */

/* ========================================
   CSS VARIABLES (Design System)
   ======================================== */
:root {
    /* Color Palette */
    --primary-color: #008080;
    --primary-light: #20B2AA;
    --primary-lighter: #40E0D0;
    --primary-lightest: #7FFFD4;
    --accent-color: #48D1CC;
    
    /* Semantic Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Neutral Colors */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-modal: 2000;
    --z-toast: 3000;
    --z-nav: 100;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    padding-bottom: 80px;
    min-height: 100vh;
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* ========================================
   HEADER
   ======================================== */
.app-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.app-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.app-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.95;
    font-weight: 400;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.app-section {
    display: none;
    animation: fadeIn var(--transition-base);
}

.app-section.active {
    display: block;
}

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

.container {
    width: 100%;
}

/* ========================================
   HOME COLUMNS (Alimentos | Favoritos | Recentes)
   ======================================== */
.home-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    align-items: start;
    margin-bottom: var(--spacing-2xl);
}

.home-col {
    min-width: 0;
}

@media (max-width: 1024px) {
    .home-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .home-columns {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   SEARCH BAR
   ======================================== */
.search-container {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: box-shadow var(--transition-base);
}

.search-box:focus-within {
    box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.1), var(--shadow-xl);
}

.search-icon {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    margin-right: var(--spacing-sm);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-base);
    padding: var(--spacing-sm);
    background: transparent;
}

.search-input::placeholder {
    color: var(--text-light);
}

.clear-search {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.clear-search:hover {
    background: var(--bg-tertiary);
    color: var(--error-color);
}

/* Autocomplete Results */
.autocomplete-results {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 0;
    right: 0;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    display: none;
}

.autocomplete-results.active {
    display: block;
}

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

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

.autocomplete-item:hover,
.autocomplete-item:focus {
    background: var(--bg-secondary);
}

.autocomplete-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.autocomplete-item-calories {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 600;
}

/* ========================================
   QUICK STATS
   ======================================== */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-text:hover {
    background: var(--bg-tertiary);
    color: var(--error-color);
}

/* ========================================
   FOOD GRID
   ======================================== */
.food-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.food-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.food-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.food-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.food-card:hover::before {
    transform: scaleX(1);
}

.food-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.food-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.food-category {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-favorite {
    background: none;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-lg);
    color: var(--text-light);
    transition: all var(--transition-fast);
    padding: var(--spacing-xs);
}

.btn-favorite:hover {
    color: var(--error-color);
    transform: scale(1.2);
}

.btn-favorite.active {
    color: var(--error-color);
}

.btn-favorite.active i::before {
    content: '\f004';
}

.food-nutrition {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.nutrition-item {
    display: flex;
    flex-direction: column;
}

.nutrition-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.nutrition-value {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.nutrition-item.highlight .nutrition-value {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

/* ========================================
   EMPTY STATE
   ======================================== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.empty-state small {
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

/* ========================================
   COMPARE SECTION
   ======================================== */
.compare-instructions {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.compare-instructions i {
    color: var(--info-color);
    margin-right: var(--spacing-xs);
}

.compare-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.compare-slot {
    background: white;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.compare-slot.empty:hover {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.compare-slot i {
    font-size: var(--font-size-3xl);
    color: var(--text-light);
}

.compare-slot span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.compare-slot.filled {
    border-style: solid;
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 128, 128, 0.05), rgba(32, 178, 170, 0.05));
}

.compare-slot-food {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.compare-slot-calories {
    color: var(--primary-color);
    font-weight: 600;
}

.compare-slot-remove {
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-top: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.compare-slot-remove:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.comparison-results {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.comparison-table-container {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

.comparison-table td {
    color: var(--text-secondary);
}

.comparison-table tr:hover {
    background: var(--bg-secondary);
}

.comparison-best {
    color: var(--success-color);
    font-weight: 600;
}

/* ========================================
   FAQ SECTION
   ======================================== */
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--primary-color);
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-lg);
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    animation: slideDown var(--transition-base);
}

.faq-answer[hidden] {
    display: none;
}

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

/* ========================================
   MODAL
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal[hidden] {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp var(--transition-base);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 1;
}

.modal-close:hover {
    background: var(--error-color);
    color: white;
    transform: rotate(90deg);
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.modal-food-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
}

#modalFavoriteBtn {
    font-size: var(--font-size-2xl);
}

.modal-body {
    padding: var(--spacing-xl);
}

.portion-selector {
    margin-bottom: var(--spacing-xl);
}

.portion-selector label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.portion-controls {
    display: flex;
    gap: var(--spacing-sm);
}

#portionSize {
    flex: 0 0 100px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

#portionSize:focus {
    border-color: var(--primary-color);
    outline: none;
}

#portionUnit {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background: white;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

#portionUnit:focus {
    border-color: var(--primary-color);
    outline: none;
}

.nutrition-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.nutrition-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
    text-align: center;
}

.nutrition-card:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.nutrition-card.highlight {
    background: linear-gradient(135deg, rgba(0, 128, 128, 0.1), rgba(32, 178, 170, 0.1));
    border: 2px solid var(--primary-light);
}

.nutrition-icon {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
}

.nutrition-details {
    display: flex;
    flex-direction: column;
}

.nutrition-card .nutrition-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.nutrition-card.highlight .nutrition-value {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
}

.nutrition-card .nutrition-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
}

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.btn-secondary {
    background: var(--primary-color);
    color: white;
}

.btn-secondary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   BOTTOM NAVIGATION
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-sm) 0;
    z-index: var(--z-nav);
    margin-bottom: 80px;
}
.black-bar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 30px;
background-color: #000000;
z-index: 1001;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    min-width: 70px;
}

.nav-item i {
    font-size: var(--font-size-xl);
}

.nav-item span {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.nav-item:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* ========================================
   TOAST NOTIFICATION
   ======================================== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    animation: slideUpToast var(--transition-base);
    max-width: 90%;
    text-align: center;
}

.toast[hidden] {
    display: none;
}

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

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

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

@keyframes slideUpToast {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ========================================
   FOOTER
   ======================================== */
.app-footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2xl);
    margin-bottom: 60px;
}

.app-footer p {
    margin-bottom: var(--spacing-sm);
}

.b20-link {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

.footer-note {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-top: var(--spacing-md);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .app-title {
        font-size: var(--font-size-xl);
    }
    
    .food-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }
    .stat-card {
        padding: var(--spacing-md);
    }
    .stat-card i {
        font-size: var(--font-size-xl);
    }
    .stat-value {
        font-size: var(--font-size-lg);
    }
    .stat-label {
        font-size: var(--font-size-xs);
    }
    
    .compare-selection {
        grid-template-columns: 1fr;
    }
    
    .nutrition-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .modal-content {
        max-height: 95vh;
    }
    
    .comparison-table {
        font-size: var(--font-size-sm);
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .app-main {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .quick-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xs);
    }
    .stat-card {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .modal-content {
        border-radius: var(--radius-lg);
    }
    
    .modal-header,
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .nutrition-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .nutrition-card {
        padding: var(--spacing-md);
    }
    
    .nutrition-icon {
        font-size: var(--font-size-xl);
    }
    
    .nutrition-card .nutrition-value {
        font-size: var(--font-size-lg);
    }
    
    .nutrition-card.highlight .nutrition-value {
        font-size: var(--font-size-xl);
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .bottom-nav,
    .app-header,
    .search-container,
    .btn-text,
    .btn-favorite,
    .modal-close {
        display: none !important;
    }
    
    .app-section {
        display: block !important;
    }
    
    body {
        padding-bottom: 0;
    }
}