/* Dark theme dashboard - similar to reference images */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-card: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-green: #4CAF50;
    --accent-orange: #FF9800;
    --accent-red: #F44336;
    --accent-yellow: #FFC107;
    --border-color: #3a3a3a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.app {
    max-width: 480px;
    margin: 0 auto;
    padding-bottom: 20px;
}

/* Header */
.header {
    padding: 16px;
    background: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
}

.header-icons {
    display: flex;
    gap: 12px;
}

.icon-btn {
    font-size: 20px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.icon-btn:hover {
    opacity: 1;
}

.header-status {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    background: var(--bg-secondary);
    border-radius: 12px;
    margin: 0 16px 16px;
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--accent-green);
    color: white;
}

.tab-panel {
    display: none;
    padding: 0 16px;
}

.tab-panel.active {
    display: block;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
}

.card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* Calo Card */
.calo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calo-toggle {
    display: flex;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
}

.toggle-btn {
    padding: 6px 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
}

.toggle-btn.active {
    background: var(--bg-card);
    color: var(--text-primary);
}

.calo-main {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.calo-circle {
    flex: 0 0 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid var(--accent-green);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.apple-icon {
    font-size: 32px;
    position: absolute;
    top: -10px;
}

.calo-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 20px;
}

.calo-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-green);
}

.calo-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calo-stat {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stat-icon {
    font-size: 20px;
    width: 24px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 18px;
    font-weight: 600;
}

/* Macro Bars */
.macro-bars {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.macro-item {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 12px;
}

.macro-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.macro-icon {
    font-size: 16px;
}

.macro-name {
    font-size: 13px;
    flex: 1;
}

.macro-value {
    font-size: 13px;
    font-weight: 600;
}

.progress-bar {
    height: 6px;
    background: var(--bg-card);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-green);
    border-radius: 3px;
    transition: width 0.3s;
}

.progress-fill.over {
    background: var(--accent-red);
}

/* Diet Mode */
.diet-mode {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

.diet-mode strong {
    color: var(--accent-green);
}

/* Meal Summary */
.meal-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.meal-slot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px 8px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.meal-icon {
    font-size: 24px;
}

.meal-kcal {
    font-size: 18px;
    font-weight: 700;
}

.meal-name {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-expand {
    width: 100%;
    padding: 12px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px;
    color: var(--accent-green);
    font-size: 14px;
    cursor: pointer;
}

.meal-details {
    margin-top: 16px;
}

.meal-section {
    margin-bottom: 16px;
}

.meal-section h3 {
    font-size: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.food-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

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

.food-name {
    flex: 1;
}

.food-kcal {
    font-weight: 600;
    margin-left: 12px;
}

.meal-total {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    font-weight: 600;
    color: var(--accent-green);
    border-top: 2px solid var(--border-color);
    margin-top: 8px;
}

.meal-macros {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.macro-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.macro-badge.carbs { background: #2d5016; color: #4CAF50; }
.macro-badge.protein { background: #5c1a1a; color: #F44336; }
.macro-badge.fat { background: #5c4a1a; color: #FFC107; }

/* Activity & Sleep */
.empty-text {
    color: var(--text-secondary);
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.activity-icon {
    font-size: 24px;
}

.activity-info {
    flex: 1;
}

.activity-name {
    font-size: 14px;
    font-weight: 500;
}

.activity-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Charts */
.chart-container {
    position: relative;
    height: 300px;
    margin-bottom: 16px;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.chart-note {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    margin-top: 12px;
}

/* Nutrition Tabs */
.nutrition-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    overflow-x: auto;
}

.nut-tab {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
}

.nut-tab.active {
    background: var(--accent-green);
    color: white;
}

.nutrition-details {
    font-size: 14px;
}

.nutrition-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

/* Calendar */
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.cal-nav {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 12px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    text-align: center;
}

.cal-day-header {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 8px 0;
}

.cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    position: relative;
}

.cal-day.empty {
    cursor: default;
}

.cal-day.today {
    background: var(--accent-green);
    font-weight: 600;
}

.cal-day.has-data::after {
    content: '';
    position: absolute;
    bottom: 4px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-green);
}

/* Stats Summary */
.stats-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.stats-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.stats-label {
    flex: 1;
    font-size: 14px;
}

.stats-value {
    font-weight: 600;
    font-size: 14px;
}

/* Month Stats */
.month-stat-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.month-stat-icon {
    font-size: 16px;
    width: 24px;
}

.month-stat-label {
    flex: 1;
    font-size: 14px;
}

.month-stat-value {
    font-weight: 600;
    font-size: 14px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 360px) {
    .macro-bars {
        grid-template-columns: 1fr;
    }
    
    .meal-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}