/* ===== CSS Variables & Design System ===== */
:root {
    /* Colors - Premium Palette */
    --primary-500: hsl(239, 84%, 67%);
    --primary-600: hsl(239, 84%, 60%);
    --primary-700: hsl(239, 84%, 50%);
    --primary-gradient: linear-gradient(135deg, hsl(239, 84%, 67%) 0%, hsl(271, 91%, 65%) 100%);

    --success-500: hsl(142, 71%, 45%);
    --success-600: hsl(142, 71%, 38%);
    --success-bg: hsla(142, 71%, 45%, 0.1);

    --warning-500: hsl(38, 92%, 50%);
    --warning-bg: hsla(38, 92%, 50%, 0.1);

    --danger-500: hsl(0, 84%, 60%);
    --danger-600: hsl(0, 84%, 50%);
    --danger-bg: hsla(0, 84%, 60%, 0.1);

    /* Neutrals - Dark Theme */
    --bg-primary: hsl(222, 47%, 11%);
    --bg-secondary: hsl(222, 39%, 15%);
    --bg-tertiary: hsl(222, 35%, 20%);
    --bg-elevated: hsl(222, 35%, 18%);

    --text-primary: hsl(0, 0%, 98%);
    --text-secondary: hsl(220, 9%, 65%);
    --text-tertiary: hsl(220, 9%, 46%);

    --border-color: hsla(220, 13%, 91%, 0.1);
    --border-hover: hsla(220, 13%, 91%, 0.2);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    line-height: 1.2;
}

/* ===== App Container ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.4));
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.4));
    }

    50% {
        filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.6));
    }
}

.logo h1 {
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-sm);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.nav-btn.active {
    color: white;
    border-color: transparent;
}

.nav-btn.active::before {
    opacity: 1;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: var(--spacing-2xl);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.view {
    display: none;
    animation: fadeIn var(--transition-slow);
}

.view.active {
    display: block;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Capture View ===== */
.capture-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.camera-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.camera-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    border: 2px dashed var(--border-color);
    cursor: pointer;
    transition: all var(--transition-base);
}

.camera-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-tertiary);
    gap: var(--spacing-md);
}

.camera-placeholder svg {
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.preview-image,
.camera-stream {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-controls {
    display: flex;
    gap: var(--spacing-md);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    flex: 1;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    flex: 1;
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger-500);
    border: 1px solid var(--danger-500);
}

/* ===== Analysis Section ===== */
.analysis-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    animation: slideInRight var(--transition-slow);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.analysis-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.analysis-header h2 {
    font-size: 1.75rem;
}

.confidence-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--success-bg);
    border: 1px solid var(--success-500);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.confidence-label {
    color: var(--text-secondary);
}

.confidence-value {
    color: var(--success-500);
    font-weight: 700;
}

.analysis-results {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.result-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.primary-result {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--primary-500);
    box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
}

.result-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    color: white;
    flex-shrink: 0;
}

.result-content h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value {
    font-size: 3rem;
    font-weight: 700;
    color: #ffffff;
    font-family: 'Space Grotesk', sans-serif;
}

.result-value.small {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.result-value.dose {
    font-size: 2.25rem;
    color: #ffffff;
}

.primary-result .result-value {
    font-size: 3.5rem;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

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

.result-grid .result-card h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Food Items ===== */
.food-items-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.food-items-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.food-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.food-item-name {
    font-weight: 500;
    color: var(--text-primary);
}

.food-item-carbs {
    font-weight: 600;
    color: var(--primary-500);
}

/* ===== Action Buttons ===== */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ===== History View ===== */
.history-container {
    max-width: 900px;
    margin: 0 auto;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.history-header h2 {
    font-size: 2rem;
}

.history-filters {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn.active {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.history-item {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    cursor: pointer;
}

.history-item-image {
    width: 120px;
    height: 90px;
    border-radius: var(--radius-md);
    object-fit: cover;
    background: var(--bg-tertiary);
}

.history-item-details {
    min-width: 0;
    overflow: hidden;
}

.history-item-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.history-item-details h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.btn-delete-history {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: #f87171;
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color 0.2s, background 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.btn-delete-history:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.5);
    color: #fca5a5;
}

.history-item-meta {
    display: flex;
    gap: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.history-item-carbs {
    font-size: 1.75rem;
    font-weight: 700;
    color: #ffffff;
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
}

.history-item-carbs .carbs-value {
    line-height: 1;
}

.history-item-carbs .carbs-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Food title in history card */
.history-food-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

/* Meal type badge */
.meal-type-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

/* Stats row: macros + dose + confidence */
.history-item-stats {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.stat-separator {
    color: var(--border-color);
    font-weight: 300;
}

.stat-dose {
    font-weight: 600;
    color: var(--text-primary);
}

.confidence-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 10px;
    line-height: 1.4;
}

.conf-high {
    background: rgba(34, 197, 94, 0.12);
    color: #16a34a;
}

.conf-mid {
    background: rgba(234, 179, 8, 0.12);
    color: #ca8a04;
}

.conf-low {
    background: rgba(239, 68, 68, 0.12);
    color: #dc2626;
}

/* Expand details button */
.btn-expand-details {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 0;
    margin-top: 2px;
    transition: color 0.2s;
}

.btn-expand-details:hover {
    color: var(--text-secondary);
}

.btn-expand-details svg {
    transition: transform 0.2s;
}

.btn-expand-details.expanded svg {
    transform: rotate(180deg);
}

.history-details-collapsible {
    margin-top: var(--spacing-xs);
}

.context-info {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-style: italic;
    margin-bottom: 4px;
}

/* Inline fields for history cards */
.history-inline-fields {
    margin-top: 0.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.history-field-group label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.history-field-input {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.history-field-input input {
    padding: 4px 8px;
    font-size: 0.9rem;
    width: 70px;
    min-width: 0;
}

.history-field-input .btn {
    padding: 4px 8px;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-tertiary);
    text-align: center;
}

.empty-state svg {
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state-subtitle {
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

/* ===== Settings View ===== */
.settings-container {
    max-width: 700px;
    margin: 0 auto;
}

.settings-container h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
}

.settings-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.settings-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.setting-item {
    margin-bottom: var(--spacing-lg);
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.setting-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.setting-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
}

.setting-description {
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ===== Toggle Switch ===== */
.setting-item .toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    user-select: none;
    margin-bottom: 0;
    /* Override generic label margin */
}

.toggle-input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 48px;
    height: 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

/* Removed order properties as DOM order is correct (Slider -> Text) */

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--text-tertiary);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.toggle-input:checked+.toggle-slider {
    background: var(--primary-gradient);
    border-color: transparent;
}

.toggle-input:checked+.toggle-slider::before {
    transform: translateX(24px);
    background: white;
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    min-width: 300px;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideInUp var(--transition-base);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast.success {
    border-color: var(--success-500);
}

.toast.error {
    border-color: var(--danger-500);
}

.toast-icon {
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
    font-size: 0.95rem;
}

/* ===== New Feature Styles ===== */

/* Food Item Macros */
.food-item {
    flex-direction: column;
    align-items: stretch;
}

.food-item-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.food-item-portion {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.food-item-macros {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
}

.macro {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.macro.carbs {
    background: hsla(239, 84%, 67%, 0.15);
    color: var(--primary-500);
}

.macro.fat {
    background: hsla(38, 92%, 50%, 0.15);
    color: var(--warning-500);
}

.macro.protein {
    background: hsla(142, 71%, 45%, 0.15);
    color: var(--success-500);
}

/* Dose Split Display */
.dose-breakdown {
    font-size: 0.8em;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 0.25rem;
}

.dose-split {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    min-width: 200px;
}

.immediate-dose,
.extended-dose {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    /* Glass effect instead of solid blue */
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 4px;
}

.dose-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9) !important;
    /* Force white text */
    font-weight: 500;
}

.dose-value {
    font-weight: 700;
    color: #ffffff !important;
    font-size: 1.5rem;
}

.total-dose-note {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    text-align: center;
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    border-top: 1px solid var(--border-color);
    text-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

/* Fat/Protein Warning */
.fp-warning {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--warning-bg);
    border: 1px solid var(--warning-500);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--warning-500);
}

.fp-warning svg {
    flex-shrink: 0;
}

/* Refine Analysis Section */
.refine-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

#refine-toggle-btn {
    width: 100%;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    border: 1px dashed var(--border-hover);
    background: transparent;
}

#refine-toggle-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary-500);
}

.refine-panel {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.refine-panel .comment-input {
    font-size: 0.95rem;
}

#refine-btn {
    gap: var(--spacing-sm);
}

/* Multiplier Note */
.multiplier-note {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

/* Size Adjustment Note */
.size-adjustment-note {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Comment Section */
.comment-section {
    margin-top: var(--spacing-lg);
}

.comment-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.comment-input-group {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.comment-input {
    flex: 1;
    width: 100%;
    min-height: 80px;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    resize: vertical;
    transition: all var(--transition-base);
    box-sizing: border-box;
}

.comment-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
}

.comment-input::placeholder {
    color: var(--text-tertiary);
}

.input-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

#recalculate-btn {
    flex-shrink: 0;
    height: fit-content;
}

/* Select Dropdown */
select.setting-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: calc(var(--spacing-md) * 3);
}

/* ===== User Menu & Dropdown ===== */
.user-menu {
    position: relative;
    margin-left: var(--spacing-md);
}

.user-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    min-width: 150px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.dropdown-link {
    display: block;
    padding: 0.75rem 1rem;
    min-height: 44px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    display: flex;
    align-items: center;
}

.dropdown-link--danger {
    color: var(--danger-500);
}

/* ===== Mobile Bottom Tab Bar ===== */
.mobile-tab-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    z-index: 200;
    justify-content: space-around;
    padding: var(--spacing-xs) 0;
    padding-bottom: calc(var(--spacing-xs) + env(safe-area-inset-bottom, 0px));
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.tab-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-md);
    min-height: 48px;
    min-width: 64px;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    transition: color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.tab-btn.active {
    color: var(--primary-500);
}

.tab-btn svg {
    flex-shrink: 0;
}

/* ===== Hover effects only for pointer devices ===== */
@media (hover: hover) and (pointer: fine) {
    .nav-btn:hover {
        color: var(--text-primary);
        border-color: var(--border-hover);
        transform: translateY(-1px);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
    }

    .btn-secondary:hover {
        background: var(--bg-elevated);
        border-color: var(--border-hover);
        transform: translateY(-2px);
    }

    .btn-danger:hover {
        background: var(--danger-500);
        color: white;
        transform: translateY(-2px);
    }

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

    .food-item:hover {
        border-color: var(--border-hover);
        transform: translateX(4px);
    }

    .history-item:hover {
        border-color: var(--primary-500);
        transform: translateX(4px);
        box-shadow: var(--shadow-md);
    }

    .filter-btn:hover {
        border-color: var(--border-hover);
        color: var(--text-primary);
    }

    .camera-preview:hover {
        border-color: var(--primary-500);
        box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
    }

    .dropdown-link:hover {
        background: var(--bg-tertiary);
    }

    .btn-delete-history:hover {
        color: #fca5a5;
        background: rgba(239, 68, 68, 0.2);
        border-color: rgba(239, 68, 68, 0.5);
    }
}

/* Remove hover transforms for touch devices */
@media (hover: none) {
    .nav-btn:hover,
    .btn-primary:hover,
    .btn-secondary:hover,
    .btn-danger:hover,
    .result-card:hover,
    .food-item:hover,
    .history-item:hover,
    .filter-btn:hover,
    .camera-preview:hover {
        transform: none;
    }
}

/* ===== Safe Area Inset Support ===== */
.app-header {
    padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top, 0px));
    padding-left: calc(var(--spacing-xl) + env(safe-area-inset-left, 0px));
    padding-right: calc(var(--spacing-xl) + env(safe-area-inset-right, 0px));
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .capture-container {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    /* Show mobile tab bar, hide header nav buttons */
    .mobile-tab-bar {
        display: flex;
    }

    .nav-menu .nav-btn[data-view] {
        display: none;
    }

    .app-header {
        padding: var(--spacing-md);
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top, 0px));
    }

    .user-menu {
        margin-left: auto;
    }

    /* Add bottom padding to main content for tab bar */
    .main-content {
        padding-bottom: calc(var(--spacing-2xl) + 60px + env(safe-area-inset-bottom, 0px));
    }

    .result-grid {
        grid-template-columns: 1fr;
    }

    /* Larger touch targets for filter buttons */
    .filter-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    .history-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .history-header h2 {
        font-size: 1.5rem;
    }

    .history-filters {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .history-item {
        grid-template-columns: 60px 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .history-item-image {
        width: 60px;
        height: 60px;
    }

    .history-item-carbs {
        display: none;
    }

    .history-item-details h3 {
        font-size: 0.95rem;
    }

    .history-item-meta {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        font-size: 0.8rem;
    }

    .history-item-stats {
        font-size: 0.78rem;
        gap: 2px 6px;
        flex-wrap: wrap;
    }

    .stat-separator {
        display: none;
    }

    .history-item-stats .stat-dose {
        flex-basis: 100%;
    }

    .history-inline-fields {
        flex-direction: column !important;
        gap: var(--spacing-sm) !important;
    }

    .history-field-input input {
        flex: 1;
        min-width: 0;
        width: auto;
    }

    .comment-input-group {
        flex-direction: column;
    }

    #recalculate-btn {
        width: 100%;
    }

    /* Camera UI Fixes */
    .camera-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .camera-controls .btn {
        width: 100%;
        min-height: 48px;
    }

    .input-row {
        grid-template-columns: 1fr !important;
    }

    .input-label {
        font-size: 1rem;
    }

    .comment-input {
        font-size: 1rem;
    }

    /* Scale large font sizes */
    .result-value {
        font-size: 2.25rem;
    }

    .settings-container h2,
    .history-container h2 {
        font-size: 1.5rem;
    }

    .analysis-header h2 {
        font-size: 1.35rem;
    }

    /* Larger delete button touch target */
    .btn-delete-history {
        padding: 10px;
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Toast full-width on mobile */
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: calc(60px + var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    }

    .toast {
        min-width: unset;
        width: 100%;
    }
}

@media (max-width: 400px) {
    .main-content {
        padding: var(--spacing-sm);
        padding-bottom: calc(var(--spacing-sm) + 60px + env(safe-area-inset-bottom, 0px));
    }

    .history-item {
        grid-template-columns: 1fr;
        overflow: hidden;
    }

    .history-item-image {
        width: 100%;
        height: 120px;
    }

    .history-food-title {
        font-size: 0.9rem;
    }

    .history-item-stats {
        font-size: 0.75rem;
    }

    .result-value {
        font-size: 1.75rem;
    }

    .camera-section {
        padding: var(--spacing-md);
    }

    .analysis-section {
        padding: var(--spacing-md);
    }
}

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

.spinner {
    animation: spin 1s linear infinite;
}

/* ===== ONBOARDING WIZARD ===== */

.onboarding-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: block;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.onboarding-wizard {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    margin: 2rem auto;
    min-height: auto;
    box-shadow: var(--shadow-lg);
}

.wizard-progress {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-weight: 600;
    transition: all 0.3s ease;
}

.step-indicator.active .step-circle {
    background: var(--primary-gradient);
    border-color: var(--primary-500);
    color: white;
    transform: scale(1.1);
}

.step-indicator.completed .step-circle {
    background: var(--success-500);
    border-color: var(--success-600);
    color: white;
}

.step-indicator.completed .step-circle::before {
    content: "✓";
    font-size: 1.2rem;
}

.step-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.step-indicator.active .step-label {
    color: var(--primary-500);
}

.step-indicator.completed .step-label {
    color: var(--success-500);
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--border-color);
    margin: 0 var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.wizard-content {
    padding: var(--spacing-2xl);
}

.wizard-step h2 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.wizard-step .intro {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.info-box {
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.info-box h3 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.info-box p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0.5rem 0;
}

.warning-box {
    background: var(--danger-bg);
    border: 1px solid var(--danger-500);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);

    /* Prevent overflow */
    max-width: 100%;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-wrap: break-word;
    overflow-x: hidden;
}

.warning-box h3 {
    color: var(--danger-500);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.warning-box ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.warning-box li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;

    /* Ensure text wraps */
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.consent-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.consent-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
}

.consent-checkbox label {
    color: var(--text-secondary);
    line-height: 1.5;
    cursor: pointer;
}

.settings-form {
    margin: var(--spacing-xl) 0;
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
}

.required {
    color: var(--danger-500);
}

.help-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    text-align: center;
    line-height: 18px;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-left: var(--spacing-xs);
    cursor: help;
}

.input-with-unit {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);

    /* Prevent inputs from being too wide */
    max-width: 400px;
}

.input-with-unit input {
    flex: 1;

    /* Match .setting-input styling for consistency */
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    min-height: 44px;
    transition: all var(--transition-base);
}

.input-with-unit input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
}

.unit {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.help-text {
    display: block;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

.expandable-help {
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.help-toggle {
    background: none;
    border: none;
    color: var(--primary-500);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0;
}

.help-toggle:hover {
    text-decoration: underline;
}

.help-content {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.help-content h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.help-content ul {
    padding-left: var(--spacing-lg);
}

.help-content li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.wizard-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.wizard-actions .btn {
    flex: 1;
}

.step-complete {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--success-500);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 3rem;
    color: white;
}

.optional-settings {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    text-align: left;
}

.optional-settings h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.optional-settings ul {
    padding-left: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.optional-settings li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* ===== WARNING BANNERS ===== */

.free-tier-banner,
.example-settings-banner {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.free-tier-banner {
    border-left: 4px solid var(--primary-500);
}

.example-settings-banner {
    border-left: 4px solid var(--warning-500);
    background: var(--warning-bg);
}

.banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.banner-icon {
    font-size: 1.5rem;
}

.warning-icon {
    font-size: 1.5rem;
    color: var(--warning-500);
}

.banner-text {
    flex: 1;
}

.banner-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.banner-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.btn-outline {
    background: transparent;
    border: 1px solid currentColor;
    color: var(--primary-500);
}

.btn-outline:hover {
    background: var(--primary-500);
    color: white;
}

.btn-warning {
    background: var(--warning-500);
    color: var(--bg-primary);
}

.btn-warning:hover {
    background: var(--warning-500);
    filter: brightness(1.1);
}

/* ===== DOSE WARNING STYLING ===== */

.dose-example-warning {
    padding: var(--spacing-lg);
    background: var(--danger-bg);
    border: 1px solid var(--danger-500);
    border-radius: var(--radius-md);
}

.strikethrough {
    text-decoration: line-through;
    opacity: 0.5;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin: var(--spacing-sm) 0;
}

.badge-warning {
    background: var(--warning-500);
    color: var(--bg-primary);
}

.warning-text {
    color: var(--danger-500);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.warning-text a {
    color: var(--primary-500);
    text-decoration: underline;
}

/* ===== FREE TIER NOTICE ===== */

.free-tier-notice {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.free-tier-notice .icon {
    font-size: 1.2rem;
}

.free-tier-notice .text {
    flex: 1;
    color: var(--text-secondary);
}

.free-tier-notice a {
    color: var(--primary-500);
    text-decoration: none;
    font-weight: 500;
}

.free-tier-notice a:hover {
    text-decoration: underline;
}

/* ===== FREE TIER MODAL ===== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--text-primary);
}

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

.modal-body h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.provider-options {
    display: grid;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.provider-option {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.provider-option h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.provider-option ol {
    padding-left: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.provider-option li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.provider-option a {
    color: var(--primary-500);
    text-decoration: none;
}

.provider-option a:hover {
    text-decoration: underline;
}

.pricing {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-md);
}

.btn-large {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

/* ===== GUEST MODE STYLES ===== */

.guest-header {
    /* Ensure login button is properly positioned */
}

.guest-login-btn {
    margin-left: auto;
    flex: 0 0 auto;
}

.guest-cta-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--primary-500);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
    box-shadow: 0 0 0 4px hsla(239, 84%, 67%, 0.1);
}

.guest-cta-card .cta-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    color: white;
    flex-shrink: 0;
}

.guest-cta-card .cta-content {
    flex: 1;
}

.guest-cta-card .cta-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.guest-cta-card .cta-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.guest-cta-card .btn {
    width: auto;
}

.guest-key-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--success-bg);
    border: 1px solid var(--success-500);
    border-radius: var(--radius-md);
    color: var(--success-500);
    margin-top: var(--spacing-md);
}

.guest-key-status svg {
    flex-shrink: 0;
}

/* Responsive guest styles */
@media (max-width: 768px) {
    .guest-cta-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .guest-cta-card .cta-icon {
        width: 48px;
        height: 48px;
    }

    .guest-cta-card .btn {
        width: 100%;
    }

    .guest-login-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 640px) {
    .onboarding-overlay {
        padding: var(--spacing-sm);  /* Reduce from lg (1rem) to sm (0.5rem) */
    }

    .onboarding-wizard {
        margin: 1rem;
        border-radius: var(--radius-md);
    }

    .modal {
        max-height: 100vh;
        border-radius: 0;
    }

    .wizard-content,
    .modal-body {
        padding: var(--spacing-lg);
    }

    .wizard-progress {
        padding: var(--spacing-md);
    }

    .step-circle {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }

    .step-connector {
        width: 40px;
    }
}

/* ===== Floating Log BG Button (FAB) ===== */
.fab-log-bg {
    position: fixed;
    bottom: 90px;
    right: 20px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    border: none;
    border-radius: 50px;
    background: var(--primary-gradient);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 16px hsla(239, 84%, 67%, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

.fab-log-bg:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px hsla(239, 84%, 67%, 0.5);
}

.fab-log-bg:active {
    transform: translateY(0);
}

@media (min-width: 769px) {
    .fab-log-bg {
        bottom: 32px;
        right: 32px;
    }
}

/* ===== BG Timeline on History Cards ===== */
.bg-timeline {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
}

.bg-reading-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.bg-reading-chip .bg-val {
    font-weight: 700;
    color: var(--text-primary);
}

.bg-reading-chip.in-range .bg-val { color: var(--success-500); }
.bg-reading-chip.above-range .bg-val { color: var(--warning-500); }
.bg-reading-chip.below-range .bg-val { color: var(--danger-500); }

.bg-reading-chip .bg-type {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

.bg-reading-chip .bg-time-offset {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

.bg-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    background: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.bg-add-btn:hover {
/* ===== MODEL TIER SELECTOR ===== */

.hidden { display: none !important; }

/* Free tier locked state */
.free-model-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary-500);
    border-radius: var(--radius-md);
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
    gap: 0.75rem;
}

.free-model-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.free-badge {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--primary-500);
    background: hsla(239, 84%, 67%, 0.12);
    border: 1px solid hsla(239, 84%, 67%, 0.3);
    border-radius: 4px;
    padding: 2px 6px;
    white-space: nowrap;
}

.free-model-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.free-model-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.free-model-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Scan counter pill */
.scan-pill {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.scans-ok {
    color: var(--success-500);
    background: hsla(142, 71%, 45%, 0.12);
    border: 1px solid hsla(142, 71%, 45%, 0.25);
}

.scans-low {
    color: hsl(38, 92%, 50%);
    background: hsla(38, 92%, 50%, 0.12);
    border: 1px solid hsla(38, 92%, 50%, 0.3);
}

.scans-critical {
    color: var(--error-500, hsl(0, 84%, 60%));
    background: hsla(0, 84%, 60%, 0.12);
    border: 1px solid hsla(0, 84%, 60%, 0.3);
}

.scans-exhausted {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Unlock prompt */
.unlock-prompt {
    margin-top: 0.25rem;
}

.unlock-heading {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 0.625rem 0;
}

.unlock-cards-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-bottom: 0.625rem;
}

.unlock-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0.625rem 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-elevated);
    text-decoration: none;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
    cursor: pointer;
}

.unlock-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-tertiary);
    transform: translateY(-1px);
}

.unlock-gemini:hover { border-color: hsla(217, 91%, 60%, 0.5); }
.unlock-openai:hover { border-color: hsla(160, 64%, 52%, 0.5); }
.unlock-anthropic:hover { border-color: hsla(28, 90%, 55%, 0.5); }

.unlock-card-top {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.unlock-provider-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.unlock-free-tag {
    font-size: 0.65rem;
    font-weight: 600;
    color: hsl(142, 71%, 45%);
    background: hsla(142, 71%, 45%, 0.12);
    border: 1px solid hsla(142, 71%, 45%, 0.25);
    border-radius: 3px;
    padding: 1px 5px;
    letter-spacing: 0.03em;
}

.unlock-models-preview {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    line-height: 1.3;
}

.unlock-cta-text {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary-500);
    margin-top: 2px;
}

.unlock-note {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin: 0;
}

.unlock-note strong {
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .unlock-cards-row {
        grid-template-columns: 1fr;
    }
}

/* ===== Chat View ===== */
.chat-container {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 14rem);
    max-width: 680px;
    margin: 0 auto;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    scroll-behavior: smooth;
}

/* Empty state */
.chat-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    gap: var(--spacing-md);
    flex: 1;
    min-height: 300px;
}

.chat-empty-icon svg {
    color: var(--text-tertiary);
    opacity: 0.6;
    animation: float 3s ease-in-out infinite;
}

.chat-empty-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
}

.chat-empty-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 300px;
    line-height: 1.5;
}

.chat-suggestion-chips {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
    margin-top: var(--spacing-xs);
}

.chat-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.chat-chip:hover {
    border-color: var(--primary-500);
    background: var(--bg-tertiary);
    transform: translateY(-1px);
}

/* Message bubbles */
.chat-bubble {
    max-width: 85%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    line-height: 1.55;
    animation: fadeIn var(--transition-base);
}

.chat-bubble.bot {
    align-self: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
    white-space: pre-line;
}

.chat-bubble.user {
    align-self: flex-end;
    background: var(--primary-gradient);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-bubble-image {
    width: 100%;
    max-width: 240px;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.chat-bubble-timestamp {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    margin-top: 4px;
    display: block;
}

.chat-bubble.bot .chat-bubble-timestamp {
    text-align: left;
}

.chat-bubble.user .chat-bubble-timestamp {
    text-align: right;
    color: rgba(255,255,255,0.65);
}

/* Typing indicator */
.chat-typing {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: 4px;
}

.chat-typing span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: typing-bounce 1.2s ease-in-out infinite;
}

.chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
    40% { transform: translateY(-6px); opacity: 1; }
}

/* Inline BG input widget */
.chat-bg-widget {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chat-bg-widget input {
    width: 110px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
}

.chat-bg-widget input:focus {
    outline: none;
    border-color: var(--primary-500);
}

.chat-bg-widget button {
    padding: 8px 16px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.chat-bg-widget button:hover { opacity: 0.9; }

/* Secondary "Skip" — dose on carbs only */
.chat-bg-widget button.chat-bg-skip {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color, #ccc);
}
.chat-bg-widget button.chat-bg-skip:hover { opacity: 1; background: rgba(0,0,0,0.04); }

.chat-bg-widget label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Confirm widget */
.chat-confirm-widget {
    margin-top: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.chat-confirm-summary {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.chat-confirm-dose {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-family: 'Space Grotesk', sans-serif;
}

.chat-confirm-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.chat-confirm-btn-primary {
    flex: 1;
    padding: 10px 16px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: opacity var(--transition-fast);
}

.chat-confirm-btn-primary:hover { opacity: 0.9; }

.chat-confirm-btn-secondary {
    padding: 10px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.chat-confirm-btn-secondary:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.chat-edit-carbs-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.chat-edit-carbs-row input {
    width: 80px;
    padding: 6px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    text-align: center;
}

.chat-edit-carbs-row input:focus {
    outline: none;
    border-color: var(--primary-500);
}

.chat-edit-carbs-row button {
    padding: 6px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.chat-edit-carbs-row button:hover { background: var(--bg-tertiary); }

/* Quick-action chips row */
.chat-quick-chips {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    flex-wrap: wrap;
}

.chat-quick-chips.hidden {
    display: none;
}

.chat-chip-action {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    font-size: 0.82rem;
    padding: 7px 14px;
}

.chat-chip-action:hover {
    border-color: var(--primary-500);
    color: var(--primary-500);
}

/* ===== BG-Only History Cards ===== */
.history-item.bg-only-card {
    grid-template-columns: 40px 1fr;
    border-left: 3px solid var(--primary-500);
    padding-left: 12px;
}

.bg-only-value {
    margin-top: 4px;
}

.history-item.bg-only-card .bg-only-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary-500);
}

/* ===== Correction Dose Banner ===== */
.correction-banner {
    padding: 0.75rem;
    border-radius: 8px;
    background: var(--warning-bg);
    border: 1px solid hsla(38, 92%, 50%, 0.3);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.correction-banner strong {
    color: var(--warning-500);
}

/* ===== BG Sparkline ===== */
.bg-sparkline {
    margin-top: 4px;
    overflow: visible;
}

.bg-sparkline .range-band {
    fill: var(--success-bg);
}

.bg-sparkline .spark-line {
    fill: none;
    stroke: var(--primary-500);
    stroke-width: 1.5;
}

.bg-sparkline .spark-dot {
    fill: var(--primary-500);
}

.bg-sparkline .spark-dot.above { fill: var(--warning-500); }
.bg-sparkline .spark-dot.below { fill: var(--danger-500); }

/* ===== Time In Range Summary ===== */
.tir-summary {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.tir-bar {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--bg-tertiary);
    overflow: hidden;
    display: flex;
}

.tir-bar .tir-segment-below {
    background: var(--danger-500);
}

.tir-bar .tir-segment-in {
    background: var(--success-500);
}

.tir-bar .tir-segment-above {
    background: var(--warning-500);
}

.tir-stats {
    display: flex;
    gap: 1rem;
/* Units input widget (dose-first flow) */
.chat-units-widget {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chat-units-widget input {
    width: 90px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
}

.chat-units-widget input:focus {
    outline: none;
    border-color: var(--primary-500);
}

.chat-units-widget button {
    padding: 8px 16px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.chat-units-widget button:hover { opacity: 0.9; }

.chat-units-widget label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.tir-stats .tir-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tir-stats .tir-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.tir-stats .tir-dot.below { background: var(--danger-500); }
.tir-stats .tir-dot.in-range { background: var(--success-500); }
.tir-stats .tir-dot.above { background: var(--warning-500); }
/* Dose badge in confirm widget (manual-dose path) */
.chat-confirm-manual-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--success-500);
    background: var(--success-bg);
    border-radius: 999px;
    padding: 2px 8px;
    margin-left: 6px;
    vertical-align: middle;
}

/* Input bar */
.chat-disclaimer {
    text-align: center;
    font-size: 0.72rem;
    color: var(--text-tertiary);
    padding: var(--spacing-xs) 0;
}

.chat-input-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-sm);
}

.chat-attach-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.chat-attach-btn:hover {
    border-color: var(--primary-500);
    color: var(--primary-500);
    background: var(--bg-tertiary);
}

.chat-text-input {
    flex: 1;
    padding: 11px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}

.chat-text-input:focus {
    outline: none;
    border-color: var(--primary-500);
}

.chat-text-input::placeholder { color: var(--text-tertiary); }

.chat-send-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.chat-send-btn:hover { opacity: 0.85; }
.chat-send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Saved state banner */
.chat-saved-banner {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--success-bg);
    border: 1px solid var(--success-500);
    border-radius: var(--radius-md);
    color: var(--success-500);
    font-weight: 500;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .chat-container {
        min-height: calc(100vh - 10rem);
    }

    .chat-bubble {
        max-width: 92%;
    }
}

/* ===== CareLink Settings ===== */
.carelink-status {
    padding: 0.6rem 0.8rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    line-height: 1.4;
}
.carelink-status--ok {
    background: var(--success-bg, #d1fae5);
    color: var(--success-text, #065f46);
    border: 1px solid var(--success-border, #6ee7b7);
}
.carelink-status--error {
    background: var(--error-bg, #fee2e2);
    color: var(--error-text, #991b1b);
    border: 1px solid var(--error-border, #fca5a5);
}
.carelink-status--info {
    background: var(--info-bg, #eff6ff);
    color: var(--info-text, #1e40af);
    border: 1px solid var(--info-border, #93c5fd);
}

/* ===== CareLink chat prompt widget ===== */
.chat-carelink-prompt {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}
.chat-carelink-prompt .btn {
    flex: 1;
    min-width: 120px;
}