/* ===== Mobile Dark Theme - UnifiedAnalytiX ===== */

:root {
    --bg-primary: #0B1120;
    --bg-secondary: #111827;
    --bg-card: #151D2E;
    --bg-card-hover: #1A2438;
    --border-color: #1E293B;
    --border-light: #253349;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --accent-green: #22C55E;
    --accent-blue: #3B82F6;
    --accent-purple: #A855F7;
    --accent-red: #EF4444;
    --accent-orange: #F97316;
    --accent-cyan: #06B6D4;
    --tab-active-bg: #22C55E;
    --tab-inactive-bg: transparent;
    --pill-bg: #1E293B;
    --nav-bg: #0F172A;
    --nav-active: #3B82F6;
}

/* Base Reset */
.dark-app * { box-sizing: border-box; margin: 0; padding: 0; }

.dark-app {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    max-width: 100vw;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-bottom: 80px;
}

/* Page Header */
.page-header {
    text-align: center;
    padding: 16px 20px 12px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Tab Bar (Pill Tabs) */
.tab-bar {
    display: flex;
    margin: 0 16px 16px;
    background: var(--pill-bg);
    border-radius: 25px;
    padding: 4px;
    gap: 4px;
}

.tab-bar .tab {
    flex: 1;
    text-align: center;
    padding: 10px 16px;
    border-radius: 22px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
    border: none;
    background: transparent;
}

.tab-bar .tab.active {
    background: var(--accent-green);
    color: #fff;
    font-weight: 600;
}

.tab-bar .tab.active-blue {
    background: var(--accent-blue);
    color: #fff;
    font-weight: 600;
}

/* Scrollable Content */
.scroll-content {
    flex: 1;
    overflow-y: auto;
    padding: 0 16px 20px;
    -webkit-overflow-scrolling: touch;
}

/* Cards */
.dark-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 12px;
    transition: background 0.2s;
}

.dark-card:hover {
    background: var(--bg-card-hover);
}

/* Summary Cards Row */
.summary-row {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.summary-card {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px 12px;
    text-align: center;
}

.summary-card .value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.summary-card .label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.summary-card .bar {
    height: 3px;
    border-radius: 2px;
    margin-top: 8px;
}

/* Metric Grid */
.metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 12px;
}

.metric-tile {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px 16px;
}

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

.metric-tile .metric-name {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-tile .metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.metric-tile .metric-label {
    font-size: 11px;
    color: var(--text-muted);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px 8px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
}

.badge-green {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
}

.badge-red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.badge-blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.badge-purple {
    background: rgba(168, 85, 247, 0.15);
    color: var(--accent-purple);
}

.badge-orange {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
}

.badge-cyan {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
}

.badge-live {
    background: var(--accent-green);
    color: #fff;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-excellent {
    background: var(--accent-green);
    color: #fff;
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 6px;
}

.badge-sku {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-blue);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 6px;
}

.badge-category {
    padding: 2px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
}

.badge-category.beverages { background: rgba(59, 130, 246, 0.15); color: #60A5FA; }
.badge-category.snacks { background: rgba(249, 115, 22, 0.15); color: #FB923C; }
.badge-category.personal-care { background: rgba(168, 85, 247, 0.15); color: #C084FC; }
.badge-category.health { background: rgba(34, 197, 94, 0.15); color: #4ADE80; }

/* Section Headers */
.section-header {
    margin-bottom: 4px;
}

.section-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-header .subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Health Score Circle */
.health-score-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
}

.health-circle {
    width: 70px;
    height: 70px;
    position: relative;
    flex-shrink: 0;
}

.health-circle svg {
    width: 70px;
    height: 70px;
    transform: rotate(-90deg);
}

.health-circle .score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.health-circle .score-number {
    font-size: 22px;
    font-weight: 700;
    color: var(--accent-green);
    line-height: 1;
}

.health-circle .score-label {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.health-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.health-info p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Product Card */
.product-card {
    padding: 18px;
}

.product-card .product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.product-card .product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.product-card .product-badges {
    display: flex;
    gap: 6px;
    margin-top: 6px;
    flex-wrap: wrap;
}

.product-card .product-stats {
    display: flex;
    gap: 20px;
    margin: 14px 0;
}

.product-card .product-stat .stat-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.product-card .product-stat .stat-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.product-card .margin-stat .stat-value {
    color: var(--accent-green);
}

/* Progress Bar */
.progress-bar-container {
    margin-top: 8px;
}

.progress-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.progress-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.6s ease;
}

.progress-bar .fill-green { background: var(--accent-green); }
.progress-bar .fill-blue { background: var(--accent-blue); }
.progress-bar .fill-purple { background: var(--accent-purple); }

/* AI Feature Card */
.ai-feature-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
}

.ai-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.ai-icon.forecast { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

.ai-info h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-info .ai-details {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.ai-info .ai-status {
    font-size: 11px;
    color: var(--accent-green);
    margin-top: 2px;
}

/* Chart Container */
.chart-section {
    margin-top: 8px;
}

.chart-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.chart-section .chart-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.chart-legend {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.chart-legend .legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.chart-legend .legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
}

.chart-wrapper {
    height: 200px;
    position: relative;
}

/* Monthly Breakdown */
.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
}

.breakdown-item .left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.breakdown-item .month-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.breakdown-item .right {
    text-align: right;
}

.breakdown-item .forecast-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-green);
}

.breakdown-item .variance {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 500;
    transition: all 0.2s;
    position: relative;
}

.bottom-nav .nav-item i {
    font-size: 20px;
    transition: all 0.2s;
}

.bottom-nav .nav-item.active {
    color: var(--accent-blue);
}

.bottom-nav .nav-item.active i {
    color: var(--accent-blue);
}

.bottom-nav .nav-item.active::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--accent-blue);
    border-radius: 0 0 3px 3px;
}

/* Search Bar */
.search-bar {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 14px;
    margin-bottom: 16px;
    gap: 10px;
}

.search-bar i {
    color: var(--text-muted);
    font-size: 16px;
}

.search-bar input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
}

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

/* Connectivity Banner */
.connectivity-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
}

.connectivity-banner.online {
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-green);
}

.connectivity-banner.offline {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
}

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

.connectivity-dot.online { background: var(--accent-green); }
.connectivity-dot.offline { background: var(--accent-orange); animation: pulse 2s infinite; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Responsive — full-width on desktop */
@media (min-width: 768px) {
    .app-container {
        max-width: 100%;
        margin: 0;
    }
    .bottom-nav {
        max-width: 100%;
        left: 0;
        transform: none;
    }
    .scroll-content {
        padding: 0 32px 20px;
    }
    .metric-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .quick-actions {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Transitions */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.25s ease; }