/**
 * Analytics CSS — "Frosted Intelligence Center"
 * iOS-inspired glassmorphism for the analytics page.
 * Complements dashboard.css; styles analytics-specific components.
 */

/* === Analytics Filter Bar === */
.filters {
    display: flex;
    align-items: flex-end;
    gap: 0.875rem;
    padding: 0.875rem 1.25rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}

.filters::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    pointer-events: none;
}

.filters .filter-group--actions {
    margin-left: auto;
}

/* === Tab Navigation — Frosted iOS Segmented Control === */
.tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.3125rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    box-shadow: var(--glass-shadow);
    position: relative;
}

.tabs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
    pointer-events: none;
    z-index: 1;
}

.tab {
    padding: 0.5625rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 280ms cubic-bezier(0.34, 1.56, 0.64, 1);
    white-space: nowrap;
    position: relative;
    font-family: var(--font-body);
    letter-spacing: 0.005em;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--glass-bg-thin);
}

.tab.active {
    background: var(--glass-bg-thick);
    color: var(--text-primary);
    border-color: var(--glass-border-strong);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.tab.active::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 25%;
    right: 25%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* === Tab Content Panels === */
.tab-content {
    display: none;
    animation: tabFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* === Cards — Frosted Glass Panels === */
.card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
    transition: all 300ms ease;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    pointer-events: none;
    z-index: 1;
}

.card:hover {
    border-color: var(--glass-border-strong);
    box-shadow: var(--glass-shadow-hover);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.125rem 1.375rem;
    border-bottom: 1px solid var(--glass-border);
    gap: 0.75rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
    margin: 0;
    line-height: 1.3;
}

.card-subtitle {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 400;
    margin: 0;
}

.card-body {
    padding: 1.25rem 1.375rem;
}

/* === Chart Containers === */
.chart-container {
    position: relative;
    height: 260px;
}

.chart-container.large {
    height: 340px;
}

.chart-details {
    margin-top: 1rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 0.75rem;
}

.chart-details summary {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 0.375rem 0;
    font-weight: 500;
    transition: color 200ms ease;
}

.chart-details summary:hover {
    color: var(--text-secondary);
}

/* === Data Tables — Frosted Rows === */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead {
    border-bottom: 1px solid var(--glass-border);
}

.data-table th {
    padding: 0.6875rem 0.875rem;
    text-align: left;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--glass-bg-thin);
}

.data-table th:first-child {
    border-radius: var(--radius-lg) 0 0 0;
}

.data-table th:last-child {
    border-radius: 0 var(--radius-lg) 0 0;
}

.data-table th.text-right {
    text-align: right;
}

.data-table th.rank {
    width: 2.5rem;
    text-align: center;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--glass-border);
    transition: all 200ms ease;
}

.data-table tbody tr:last-child {
    border-bottom: none;
}

.data-table tbody tr:hover {
    background: rgba(20, 184, 166, 0.04);
}

.data-table td {
    padding: 0.6875rem 0.875rem;
    font-size: 0.8125rem;
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table td.text-right {
    text-align: right;
}

.data-table td.rank {
    text-align: center;
    font-weight: 700;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* Top 3 rank glow */
.data-table tbody tr:nth-child(1) td.rank {
    color: #fbbf24;
    text-shadow: 0 0 8px rgba(251, 191, 36, 0.35);
}

.data-table tbody tr:nth-child(2) td.rank {
    color: var(--text-tertiary);
}

.data-table tbody tr:nth-child(3) td.rank {
    color: #CD7F32;
    text-shadow: 0 0 8px rgba(205, 127, 50, 0.2);
}

/* === Creator Info in Tables === */
.creator-info {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.creator-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    object-fit: cover;
    background: var(--bg-secondary);
    border: 1.5px solid var(--glass-border);
    flex-shrink: 0;
    transition: all 250ms ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.data-table tbody tr:hover .creator-avatar {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(20, 184, 166, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
}

.creator-info .creator-name {
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.creator-info .creator-username {
    font-size: 0.6875rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

/* === Metric Change Indicators === */
.metric-change {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.01em;
}

.metric-change.positive {
    color: var(--color-success);
    background: rgba(52, 211, 153, 0.12);
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.06);
}

.metric-change.negative {
    color: var(--color-danger);
    background: rgba(251, 113, 133, 0.12);
    box-shadow: 0 0 8px rgba(251, 113, 133, 0.06);
}

.metric-change.neutral {
    color: var(--text-tertiary);
    background: rgba(100, 116, 139, 0.12);
}

/* === Movers Widget — Frosted List Items === */
.movers-widget {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.mover-item-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: all 280ms cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid transparent;
    position: relative;
}

.mover-item-link:hover {
    background: var(--glass-bg-thin);
    border-color: var(--glass-border);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
    color: inherit;
    text-decoration: none;
}

.mover-rank {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    font-family: var(--font-mono);
    width: 1.5rem;
    text-align: center;
    flex-shrink: 0;
}

/* Top 3 mover rank glow */
.mover-item-link:nth-child(1) .mover-rank {
    color: #fbbf24;
    text-shadow: 0 0 8px rgba(251, 191, 36, 0.35);
}

.mover-item-link:nth-child(2) .mover-rank {
    color: var(--text-tertiary);
}

.mover-item-link:nth-child(3) .mover-rank {
    color: #CD7F32;
    text-shadow: 0 0 8px rgba(205, 127, 50, 0.2);
}

.mover-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    object-fit: cover;
    background: var(--bg-secondary);
    border: 1.5px solid var(--glass-border);
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.mover-info {
    flex: 1;
    min-width: 0;
}

.mover-name {
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mover-platform {
    margin-top: 0.125rem;
}

.mover-change {
    text-align: right;
    flex-shrink: 0;
}

.mover-value {
    font-weight: 700;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    letter-spacing: -0.01em;
}

.mover-value.gain {
    color: var(--color-success);
}

.mover-value.loss {
    color: var(--color-danger);
}

.mover-label {
    font-size: 0.625rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

/* === Grid Layouts === */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* === KPI Summary Row === */
.analytics-kpi-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.analytics-kpi {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 1.125rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    transition: all 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: kpiEnter 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.analytics-kpi:nth-child(1) { animation-delay: 0.04s; }
.analytics-kpi:nth-child(2) { animation-delay: 0.08s; }
.analytics-kpi:nth-child(3) { animation-delay: 0.12s; }
.analytics-kpi:nth-child(4) { animation-delay: 0.16s; }

@keyframes kpiEnter {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.analytics-kpi::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    pointer-events: none;
}

.analytics-kpi:hover {
    border-color: var(--glass-border-strong);
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-3px) scale(1.01);
    background: var(--glass-bg-thick);
}

.analytics-kpi__icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    transition: transform 320ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.analytics-kpi:hover .analytics-kpi__icon {
    transform: scale(1.1) rotate(-3deg);
}

.analytics-kpi__icon--teal {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.22), rgba(20, 184, 166, 0.06));
    color: var(--color-primary);
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.12);
}

.analytics-kpi__icon--purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.24), rgba(139, 92, 246, 0.06));
    color: var(--color-secondary-light);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.12);
}

.analytics-kpi__icon--amber {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.22), rgba(251, 191, 36, 0.06));
    color: var(--color-warning);
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.12);
}

.analytics-kpi__icon--rose {
    background: linear-gradient(135deg, rgba(251, 113, 133, 0.24), rgba(251, 113, 133, 0.06));
    color: var(--color-danger);
    box-shadow: 0 0 20px rgba(251, 113, 133, 0.1);
    border: 1px solid rgba(251, 113, 133, 0.12);
}

.analytics-kpi__icon--green {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.22), rgba(52, 211, 153, 0.06));
    color: var(--color-success);
    box-shadow: 0 0 20px rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.12);
}

.analytics-kpi__body {
    flex: 1;
    min-width: 0;
}

.analytics-kpi__label {
    font-size: 0.6875rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.analytics-kpi__value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.035em;
    font-family: var(--font-heading);
}

/* === Platform Distribution Mini Chart Container === */
.platform-dist-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.platform-dist-chart {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.platform-dist-legend {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
}

.platform-dist-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.platform-dist-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.platform-dist-dot--tiktok {
    background: #FE2C55;
    box-shadow: 0 0 8px rgba(254, 44, 85, 0.4);
}

.platform-dist-dot--instagram {
    background: #E4405F;
    box-shadow: 0 0 8px rgba(228, 64, 95, 0.4);
}

.platform-dist-dot--youtube {
    background: #FF0000;
    box-shadow: 0 0 8px rgba(255, 0, 0, 0.4);
}

.platform-dist-name {
    font-size: 0.8125rem;
    color: var(--text-primary);
    font-weight: 500;
}

.platform-dist-count {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-left: auto;
    font-family: var(--font-mono);
}

/* === Empty States === */
.empty-state {
    text-align: center;
    padding: 2.5rem 1.5rem;
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.6;
}

.empty-state-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
}

.empty-state-text {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

/* === Badges for Trending Tags === */
.badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid;
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    transition: all 280ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.badge-success {
    background: rgba(52, 211, 153, 0.12);
    color: var(--color-success);
    border-color: rgba(52, 211, 153, 0.15);
}

.badge-info {
    background: rgba(20, 184, 166, 0.12);
    color: var(--color-primary);
    border-color: rgba(20, 184, 166, 0.15);
}

.badge-secondary {
    background: var(--glass-bg-thin);
    color: var(--text-secondary);
    border-color: var(--glass-border);
}

/* === Margin / Spacing Helpers === */
.mt-3 { margin-top: 1rem; }
.mb-3 { margin-bottom: 1rem; }

/* === Utility: items-end === */
.items-end { align-items: flex-end; }

/* === Responsive === */
@media (max-width: 1024px) {
    .analytics-kpi-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-2 {
        grid-template-columns: 1fr;
    }

    .grid-cols-3 {
        grid-template-columns: 1fr;
    }

    .platform-dist-row {
        grid-template-columns: 1fr;
    }
}

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

    .tabs {
        padding: 0.25rem;
        gap: 0.125rem;
    }

    .tab {
        padding: 0.4375rem 0.75rem;
        font-size: 0.75rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1rem;
    }

    .chart-container {
        height: 220px;
    }

    .chart-container.large {
        height: 280px;
    }

    .card-body {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .analytics-kpi {
        padding: 0.875rem 1rem;
    }

    .analytics-kpi__value {
        font-size: 1.25rem;
    }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    .analytics-kpi {
        animation: none;
    }

    .tab-content {
        animation: none;
    }

    .analytics-kpi,
    .card,
    .tab,
    .mover-item-link,
    .badge {
        transition: none;
    }

    .analytics-kpi:hover,
    .card:hover {
        transform: none;
    }
}

/* === Light Theme Adjustments === */
[data-theme="light"] .filters::before,
[data-theme="light"] .tabs::before,
[data-theme="light"] .card::before,
[data-theme="light"] .analytics-kpi::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
}

[data-theme="light"] .data-table tbody tr:hover {
    background: rgba(20, 184, 166, 0.06);
}

[data-theme="light"] .mover-item-link:hover {
    background: rgba(0, 0, 0, 0.03);
}

/* === Print === */
@media print {
    .filters,
    .tabs {
        display: none;
    }

    .card,
    .analytics-kpi {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        backdrop-filter: none;
    }
}