/* =============================================
   YNI - Your Nutrition Intelligence
   עיצוב יוקרתי בכחול-לבן | RTL | Mobile-first
   ============================================= */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Heebo:wght@300;400;500;600;700;800;900&display=swap');

/* === משתנים === */
:root {
    --primary: #1a56db;
    --primary-dark: #1242b0;
    --primary-darker: #0d3280;
    --primary-light: #3b82f6;
    --primary-lighter: #93bbfd;
    --primary-bg: #eff6ff;
    --accent: #2563eb;
    --gradient-start: #1e3a8a;
    --gradient-end: #3b82f6;
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a8a 40%, #2563eb 100%);
    --gradient-card: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    --white: #ffffff;
    --off-white: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --success: #059669;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --info: #0891b2;
    --info-bg: #ecfeff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-blue: 0 4px 14px rgba(37,99,235,0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    direction: rtl;
    scroll-behavior: smooth;
}

body {
    font-family: 'Heebo', sans-serif;
    background: var(--off-white);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.3;
}

.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }

/* === Auth Pages (Login/Register) === */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.auth-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    pointer-events: none;
}

.auth-wrapper::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.08);
    pointer-events: none;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px 36px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.5s ease;
}

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

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .logo-text {
    font-size: 42px;
    font-weight: 900;
    background: var(--gradient-card);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.auth-logo .logo-subtitle {
    color: var(--gray-500);
    font-size: 14px;
    margin-top: 4px;
    font-weight: 400;
}

.auth-card .form-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
    margin-bottom: 6px;
}

.auth-card .form-control {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 15px;
    font-family: 'Heebo', sans-serif;
    transition: var(--transition);
    background: var(--gray-50);
}

.auth-card .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
    background: var(--white);
}

.auth-card .form-control::placeholder {
    color: var(--gray-400);
}

/* === Buttons === */
.btn-primary {
    background: var(--gradient-card) !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
    font-size: 16px;
    padding: 12px 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-blue);
    font-family: 'Heebo', sans-serif;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37,99,235,0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline-primary {
    border: 2px solid var(--primary) !important;
    color: var(--primary) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
    font-family: 'Heebo', sans-serif;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background: var(--primary) !important;
    color: var(--white) !important;
}

.btn-success {
    background: var(--success) !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
    font-family: 'Heebo', sans-serif;
}

.btn-danger {
    background: var(--danger) !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
    font-family: 'Heebo', sans-serif;
}

.btn-light {
    background: var(--gray-100) !important;
    border: 1px solid var(--gray-200) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 500;
    color: var(--gray-700) !important;
    font-family: 'Heebo', sans-serif;
    transition: var(--transition);
}

.btn-light:hover {
    background: var(--gray-200) !important;
}

/* === App Layout === */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
    width: 260px;
    background: var(--gradient-hero);
    color: var(--white);
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    z-index: 1040;
    transition: var(--transition-slow);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar-logo .logo-text {
    font-size: 32px;
    font-weight: 900;
    color: var(--white);
    letter-spacing: -1px;
}

.sidebar-logo .logo-subtitle {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
}

.sidebar-nav .nav-item {
    margin-bottom: 4px;
}

.sidebar-nav .nav-link {
    color: rgba(255,255,255,0.7);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    text-decoration: none;
}

.sidebar-nav .nav-link i {
    font-size: 18px;
    width: 22px;
    text-align: center;
}

.sidebar-nav .nav-link:hover {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.sidebar-nav .nav-link.active {
    background: rgba(255,255,255,0.15);
    color: var(--white);
    font-weight: 600;
}

.sidebar-user {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-user .user-name {
    font-weight: 600;
    font-size: 14px;
}

.sidebar-user .user-logout {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    text-decoration: none;
    transition: var(--transition);
}

.sidebar-user .user-logout:hover {
    color: var(--white);
}

/* === Main Content === */
.main-content {
    margin-right: 260px;
    flex: 1;
    padding: 24px;
    min-height: 100vh;
}

.page-header {
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: 26px;
    font-weight: 800;
    color: var(--gray-900);
    margin: 0;
}

.page-header p {
    color: var(--gray-500);
    margin: 4px 0 0;
    font-size: 14px;
}

/* === Cards === */
.yni-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition);
}

.yni-card:hover {
    box-shadow: var(--shadow-lg);
}

.yni-card .card-header-yni {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.yni-card .card-header-yni h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.yni-card .card-header-yni h3 i {
    color: var(--primary);
}

.yni-card .card-body-yni {
    padding: 24px;
}

/* === Stat Cards (Dashboard) === */
.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
}

.stat-card.calories::before { background: var(--gradient-card); }
.stat-card.protein::before { background: linear-gradient(90deg, #059669, #34d399); }
.stat-card.carbs::before { background: linear-gradient(90deg, #d97706, #fbbf24); }
.stat-card.fat::before { background: linear-gradient(90deg, #7c3aed, #a78bfa); }

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 12px;
}

.stat-card.calories .stat-icon { background: var(--primary-bg); color: var(--primary); }
.stat-card.protein .stat-icon { background: var(--success-bg); color: var(--success); }
.stat-card.carbs .stat-icon { background: var(--warning-bg); color: var(--warning); }
.stat-card.fat .stat-icon { background: #f3e8ff; color: #7c3aed; }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 500;
}

.stat-card .stat-remaining {
    font-size: 13px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--gray-100);
    color: var(--gray-600);
}

.stat-card .stat-remaining strong {
    color: var(--gray-900);
}

/* === Progress Bars === */
.progress-yni {
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    overflow: hidden;
    margin-top: 8px;
    display: flex;
}

.progress-yni .progress-bar-yni {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.6s ease;
    flex-shrink: 0;
}

.progress-yni .progress-bar-yni.bg-calories { background: var(--gradient-card); }
.progress-yni .progress-bar-yni.bg-protein { background: linear-gradient(90deg, #059669, #34d399); }
.progress-yni .progress-bar-yni.bg-carbs { background: linear-gradient(90deg, #d97706, #fbbf24); }
.progress-yni .progress-bar-yni.bg-fat { background: linear-gradient(90deg, #7c3aed, #a78bfa); }
.progress-yni .progress-bar-yni.bg-success { background: var(--success); }
.progress-yni .progress-bar-yni.bg-warning { background: var(--warning); }
.progress-yni .progress-bar-yni.bg-danger { background: var(--danger); }
.progress-yni .progress-bar-yni.bg-primary { background: var(--primary); }

/* === Nutrient Row === */
.nutrient-row {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-50);
    gap: 12px;
}

.nutrient-row:last-child {
    border-bottom: none;
}

/* הדגשת רכיבים שהושפעו מהארוחה האחרונה */
.nutrient-highlight {
    background: #fff3cd !important;
    border-radius: 6px;
    padding: 10px 8px !important;
    margin: 0 -8px;
    border-right: 4px solid #ff9800;
    border-bottom-color: #ffe082 !important;
}
.macro-highlight {
    outline: 3px solid #ff9800;
    outline-offset: -1px;
    background: linear-gradient(135deg, rgba(255,152,0,0.08), rgba(255,193,7,0.12)) !important;
}
.progress-bar-yni.bg-added {
    background: #ff9800 !important;
    border-radius: 20px;
}
.added-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    color: #e65100;
    background: #fff3cd;
    border: 1px solid #ff9800;
    border-radius: 10px;
    padding: 0 5px;
    margin-right: 2px;
    line-height: 1.6;
    cursor: default;
}
.added-badge-pct {
    color: #b71c1c;
    background: #ffebee;
    border-color: #ef5350;
}

.nutrient-row .nutrient-name {
    font-weight: 600;
    font-size: 14px;
    min-width: 140px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nutrient-row .nutrient-name .info-icon {
    color: var(--gray-400);
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
}

.nutrient-row .nutrient-name .info-icon:hover {
    color: var(--primary);
}

.nutrient-row .nutrient-progress {
    flex: 1;
}

.nutrient-row .nutrient-values {
    font-size: 13px;
    color: var(--gray-600);
    min-width: 120px;
    text-align: left;
}

/* === Food Log List === */
.food-log-item {
    display: flex;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-100);
    gap: 12px;
}

.food-log-item.food-log-clickable {
    cursor: pointer;
    padding: 14px 8px;
    margin: 0 -8px;
    border-radius: 8px;
    transition: background 0.15s;
}
.food-log-item.food-log-clickable:hover {
    background: var(--gray-50);
}
.food-log-item.food-log-selected {
    background: #fff3cd !important;
    border-right: 4px solid #ff9800;
}
.food-contribution-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    color: #1a56db;
    background: #eff6ff;
    border: 1px solid #93bbfd;
    border-radius: 10px;
    padding: 0 6px;
    margin-right: 4px;
    line-height: 1.6;
}
.nutrient-row.nutrient-row-clickable {
    cursor: pointer;
    transition: background 0.15s;
}
.nutrient-row.nutrient-row-clickable:hover {
    background: var(--gray-50);
    border-radius: 6px;
}
.nutrient-row-selected {
    background: #eff6ff !important;
    border-radius: 6px;
    padding: 10px 8px !important;
    margin: 0 -8px;
    border-right: 4px solid #1a56db;
    border-bottom-color: #dbeafe !important;
}
.stat-card.macro-clickable {
    cursor: pointer;
}
.stat-card.macro-selected {
    outline: 3px solid #1a56db;
    outline-offset: -1px;
    background: linear-gradient(135deg, rgba(26,86,219,0.06), rgba(59,130,246,0.1)) !important;
}
.food-log-item:last-child {
    border-bottom: none;
}

.food-log-item .food-info {
    flex: 1;
}

.food-log-item .food-name {
    font-weight: 600;
    font-size: 15px;
}

.food-log-item .food-details {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 2px;
}

.food-log-item .food-actions {
    display: flex;
    gap: 6px;
}

.food-log-item .food-actions .btn {
    padding: 6px 10px;
    font-size: 13px;
}

/* === Recommendation Cards === */
.rec-card {
    background: var(--primary-bg);
    border: 1px solid var(--primary-lighter);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
    cursor: pointer;
}

.rec-card:hover {
    background: #dbeafe;
    transform: translateY(-1px);
}

.rec-card .rec-text {
    font-size: 14px;
    font-weight: 500;
}

.rec-card .rec-text strong {
    color: var(--primary);
}

.rec-card .rec-add {
    background: var(--primary);
    color: var(--white);
    border: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
    flex-shrink: 0;
}

.rec-card .rec-add:hover {
    background: var(--primary-dark);
}

/* === Search Box === */
.search-box {
    position: relative;
}

.search-box .form-control {
    padding-right: 44px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-family: 'Heebo', sans-serif;
    font-size: 15px;
    padding: 12px 44px 12px 16px;
    transition: var(--transition);
    background: var(--white);
}

.search-box .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.search-box .search-icon {
    position: absolute;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 16px;
    pointer-events: none;
}

/* === Food Search Results === */
.search-results {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    max-height: 350px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.search-results.show {
    display: block;
}

.search-result-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-50);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-result-item:hover {
    background: var(--primary-bg);
}

.search-result-item .food-name {
    font-weight: 600;
    font-size: 14px;
}

.search-result-item .food-cal {
    font-size: 12px;
    color: var(--gray-500);
}

.search-result-item .food-fav {
    color: var(--warning);
    font-size: 14px;
}

/* === Modal Enhancements === */
.modal-content {
    border-radius: var(--radius-lg) !important;
    border: none !important;
    box-shadow: var(--shadow-xl) !important;
}

.modal-header {
    border-bottom: 1px solid var(--gray-100) !important;
    padding: 20px 24px !important;
}

.modal-header .modal-title {
    font-weight: 700 !important;
    font-size: 18px !important;
}

.modal-body {
    padding: 24px !important;
    overflow-y: auto !important;
    max-height: 70vh !important;
}

.modal-footer {
    border-top: 1px solid var(--gray-100) !important;
    padding: 16px 24px !important;
}

/* === Table Enhancements === */
.table-yni {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-yni th {
    background: var(--gray-50);
    font-weight: 600;
    font-size: 13px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 12px 16px;
    border-bottom: 2px solid var(--gray-100);
}

.table-yni td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-50);
    font-size: 14px;
    vertical-align: middle;
}

.table-yni tr:hover td {
    background: var(--gray-50);
}

/* === Badges === */
.badge-yni {
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.badge-yni.badge-success {
    background: var(--success-bg);
    color: var(--success);
}

.badge-yni.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-yni.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
}

/* === Tooltip Custom === */
.tooltip-yni {
    position: relative;
}

.tooltip-yni .tooltip-text {
    visibility: hidden;
    opacity: 0;
    background: var(--gray-900);
    color: var(--white);
    font-size: 13px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    position: absolute;
    bottom: 120%;
    right: 50%;
    transform: translateX(50%);
    white-space: nowrap;
    z-index: 1000;
    transition: opacity 0.2s;
    max-width: 280px;
    white-space: normal;
    text-align: center;
    line-height: 1.4;
}

.tooltip-yni:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* === Form Enhancements === */
.form-control, .form-select {
    font-family: 'Heebo', sans-serif !important;
}

.form-floating > .form-control {
    direction: rtl;
}

/* === Alerts === */
.alert {
    border-radius: var(--radius-md) !important;
    border: none !important;
    font-weight: 500;
    font-family: 'Heebo', sans-serif;
}

.alert-success {
    background: var(--success-bg) !important;
    color: var(--success) !important;
}

.alert-danger {
    background: var(--danger-bg) !important;
    color: var(--danger) !important;
}

.alert-warning {
    background: var(--warning-bg) !important;
    color: var(--warning) !important;
}

.alert-info {
    background: var(--info-bg) !important;
    color: var(--info) !important;
}

/* === Tabs Custom === */
.nav-tabs-yni {
    border: none;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    padding: 4px;
    display: inline-flex;
    gap: 4px;
}

.nav-tabs-yni .nav-link {
    border: none;
    border-radius: var(--radius-full);
    padding: 8px 20px;
    font-weight: 600;
    font-size: 14px;
    color: var(--gray-600);
    transition: var(--transition);
    font-family: 'Heebo', sans-serif;
}

.nav-tabs-yni .nav-link.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* === Date Range Selector === */
.date-range-selector {
    display: inline-flex;
    gap: 4px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    padding: 4px;
}

.date-range-selector .btn {
    border-radius: var(--radius-full) !important;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--gray-600);
    transition: var(--transition);
}

.date-range-selector .btn.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* === Free Text Input === */
.free-text-area {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 20px;
    background: var(--gray-50);
    transition: var(--transition);
}

.free-text-area:focus-within {
    border-color: var(--primary);
    background: var(--white);
}

.free-text-area textarea {
    border: none;
    background: transparent;
    width: 100%;
    resize: none;
    font-size: 15px;
    font-family: 'Heebo', sans-serif;
    line-height: 1.6;
    outline: none;
    min-height: 80px;
}

.free-text-area .hint {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: 8px;
}

/* === Loading Spinner === */
.loading-overlay {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background: rgba(255,255,255,0.85);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
}

.loading-overlay.show {
    display: flex;
}

.spinner-yni {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* === Confirmation Card (GPT results) === */
.confirm-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 12px;
    transition: var(--transition);
}

.confirm-item:hover {
    border-color: var(--primary-lighter);
}

.confirm-item .item-name {
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--primary-dark);
}

.confirm-item .item-values {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.confirm-item .item-values .value-badge {
    background: var(--gray-100);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
}

.confirm-item .item-values input {
    width: 70px;
    text-align: center;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 13px;
    font-family: 'Heebo', sans-serif;
}

/* === Mobile Sidebar Toggle === */
.mobile-header {
    display: none;
    background: var(--gradient-hero);
    padding: 14px 20px;
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1050;
    align-items: center;
    justify-content: space-between;
}

.mobile-header .logo-text {
    color: var(--white);
    font-weight: 900;
    font-size: 24px;
}

.mobile-header .menu-toggle {
    background: rgba(255,255,255,0.15);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-header .menu-toggle:hover {
    background: rgba(255,255,255,0.25);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1035;
}

/* === Responsive === */
@media (max-width: 991px) {
    .mobile-header {
        display: flex;
    }

    .sidebar {
        transform: translateX(100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .sidebar-overlay.show {
        display: block;
    }

    .main-content {
        margin-right: 0;
        padding-top: 72px;
    }
}

@media (max-width: 767px) {
    .main-content {
        padding: 68px 12px 24px;
    }

    .stat-card .stat-value {
        font-size: 24px;
    }

    .page-header h1 {
        font-size: 22px;
    }

    .auth-card {
        padding: 28px 24px;
    }

    .nutrient-row {
        flex-wrap: wrap;
    }

    .nutrient-row .nutrient-name {
        min-width: 100%;
        margin-bottom: 4px;
    }

    .nutrient-row .nutrient-values {
        min-width: auto;
        font-size: 12px;
    }
}

@media (max-width: 575px) {
    .auth-card {
        padding: 24px 18px;
    }

    .auth-logo .logo-text {
        font-size: 36px;
    }

    .yni-card .card-body-yni {
        padding: 16px;
    }

    .food-log-item {
        flex-wrap: wrap;
    }

    .food-log-item .food-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 8px;
    }
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 40px 20px;
}

.empty-state i {
    font-size: 48px;
    color: var(--gray-300);
    margin-bottom: 16px;
}

.empty-state h4 {
    color: var(--gray-600);
    font-weight: 600;
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--gray-400);
    font-size: 14px;
}

/* === Favorite Star === */
.fav-star {
    cursor: pointer;
    color: var(--gray-300);
    font-size: 18px;
    transition: var(--transition);
}

.fav-star.active, .fav-star:hover {
    color: #fbbf24;
}

/* === Scrollbar Custom === */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* === Selection === */
::selection {
    background: rgba(37,99,235,0.15);
    color: var(--gray-900);
}

/* === Print === */
@media print {
    .sidebar, .mobile-header, .sidebar-overlay {
        display: none !important;
    }
    .main-content {
        margin-right: 0 !important;
        padding: 0 !important;
    }
}