/* views.css — Shared & Core View Styles
   Trends, Events, Correlation, Gaming, Channels */

:root {
    --corr-color-download: #0ea5e9;
    --corr-color-upload: #06b6d4;
    --corr-color-snr: #3b82f6;
    --corr-color-tx-power: #f59e0b;
    --corr-color-ds-power: #a855f7;
    --corr-color-errors: rgba(239,68,68,0.6);
    --corr-color-temperature: #f97316;
    --corr-color-seg-ds: #0ea5e9;
    --corr-color-seg-us: #6366f1;
}

/* ── Shared Utilities ── */
.sort-indicator { margin-left: 4px; font-size: 0.8em; opacity: 0.7; }

.error-box {
    background: var(--crit-muted); border: 1px solid var(--crit);
    color: var(--crit); padding: 12px; border-radius: var(--radius-sm); margin-bottom: 16px;
}

.waiting {
    text-align: center; padding: 60px 20px; color: var(--muted);
}
.waiting .spinner {
    display: inline-block; width: 30px; height: 30px;
    border: 3px solid var(--surface); border-top: 3px solid var(--accent);
    border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.no-docsis-placeholder {
    text-align: center; padding: 3rem 2rem; margin-bottom: var(--space-md);
}
.no-docsis-icon-wrap {
    display: inline-flex; align-items: center; justify-content: center;
    width: 56px; height: 56px; border-radius: 50%;
    background: color-mix(in srgb, var(--text-muted) 12%, transparent);
    margin-bottom: var(--space-sm);
}
.no-docsis-icon-wrap i { width: 28px; height: 28px; color: var(--text-muted); }
.no-docsis-placeholder h2 { margin-bottom: 0.25rem; font-size: 1.1rem; font-weight: 600; }
.no-docsis-placeholder p { opacity: 0.6; font-size: 0.85rem; max-width: 400px; margin: 0 auto; }


/* ══════════════════════════════════════════════════════════════════════════
   TRENDS VIEW - Phase 4.1
   Modernized with pill tabs, card wrappers, and gradient area charts
   ══════════════════════════════════════════════════════════════════════════ */
.trend-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-xl, 24px);
    gap: var(--space-sm, 10px);
}
.trend-title {
    font-size: clamp(1.2rem, 1rem + 0.5vw, 1.5rem);
    color: var(--accent-purple, var(--accent));
    font-weight: bold;
    display: block;
    width: 100%;
    text-align: center;
}

/* Pill-style tabs (Phase 3 design language) */
.trend-tabs {
    display: flex;
    gap: var(--space-xs, 6px);
    background: var(--card-bg, var(--card));
    padding: 4px;
    border-radius: 24px;
    border: 1px solid var(--card-border, var(--input-border));
}
.trend-tab {
    background: transparent;
    border: none;
    color: var(--text-secondary, var(--muted));
    padding: 8px 20px;
    font-size: 0.9em;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s var(--ease-out-expo);
    border-radius: 20px;
}
.trend-tab:hover {
    color: var(--text);
    background: var(--amethyst-muted);
}
.trend-tab.active {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
    font-weight: 600;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--amethyst) 30%, transparent);
}
.trend-tab.temp-toggle {
    padding: 6px 10px;
    color: var(--text-secondary, var(--muted));
    opacity: 0.6;
    transition: all 0.2s var(--ease-out-expo);
}
.trend-tab.temp-toggle:hover { opacity: 1; background: rgba(249,115,22,0.1); }
.trend-tab.temp-toggle.active {
    opacity: 1; color: #f97316;
    background: rgba(249,115,22,0.15);
    box-shadow: none;
}

/* Chart grid (2x2 desktop, stack on mobile) */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg, 20px);
}

/* Phase 3 card styling */
.chart-card {
    background: var(--card-bg, var(--card));
    border: 1px solid var(--card-border, var(--input-border));
    border-radius: var(--radius-md, 8px);
    padding: var(--space-lg, 20px);
    position: relative;
    transition: all 0.2s var(--ease-out-expo);
}
.chart-card:hover {
    border-color: var(--accent-purple, var(--accent));
}

/* Chart header with icon */
.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md, 16px);
}
.chart-header-content {
    display: flex;
    align-items: center;
    gap: 10px;
}
.chart-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-purple, var(--accent));
    flex-shrink: 0;
}
.chart-card .chart-label {
    font-size: 0.95em;
    color: var(--text);
    font-weight: 600;
}
.chart-card canvas,
.chart-card > div > .uplot {
    width: 100% !important;
    min-height: 200px;
}
.uplot { width: 100% !important; }
.uplot .u-legend { font-size: 11px; }
.uplot .u-legend th, .uplot .u-legend td { padding: 2px 6px; }

/* uPlot tooltip */
.uplot-tooltip {
    position: absolute;
    z-index: 100;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    line-height: 1.5;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Responsive: Mobile stacking */
@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .trend-tabs {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        align-items: stretch;
    }
    .trend-tab {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        padding: 10px 16px;
        line-height: 1.2;
        text-align: center;
    }
    .chart-expand-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        padding: 8px;
    }
    .chart-export-btn,
    .correlation-zoom-reset {
        min-width: 44px;
        min-height: 44px;
        padding: 8px 12px;
        align-items: center;
        justify-content: center;
    }
}

/* Chart expand button (Phase 3 style - subtle, right-aligned) */
.chart-expand-btn {
    background: none;
    border: 1px solid transparent;
    color: var(--text-secondary, var(--muted));
    font-size: 1.1em;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    line-height: 1;
    opacity: 0.6;
    transition: all 0.2s var(--ease-out-expo);
    flex-shrink: 0;
}
.chart-expand-btn:hover {
    opacity: 1;
    color: var(--accent-purple, var(--accent));
    border-color: var(--accent-purple, var(--accent));
    background: var(--amethyst-muted);
}

/* ══════════════════════════════════════════════════════════════════════════
   EVENT LOG - Phase 4.3: Modern Card Design with Pill Filters
   ══════════════════════════════════════════════════════════════════════════ */
.events-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-lg, 20px);
    gap: var(--space-sm, 10px);
}
.events-header .trend-title {
    font-size: clamp(1.2rem, 1rem + 0.5vw, 1.5rem);
    color: var(--accent-purple, var(--accent));
    font-weight: bold;
}

/* Phase 4.3: Pill filter section */
.events-filter-section {
    display: flex;
    align-items: center;
    gap: var(--space-md, 16px);
    margin-bottom: var(--space-lg, 20px);
    flex-wrap: wrap;
}
.events-filter-label {
    font-size: 0.9em;
    font-weight: 600;
    color: var(--text-secondary, var(--muted));
}
.events-severity-pills {
    display: flex;
    gap: var(--space-xs, 6px);
    background: var(--card-bg, var(--card));
    padding: 4px;
    border-radius: 24px;
    border: 1px solid var(--card-border, var(--input-border));
}
.severity-pill {
    background: transparent;
    border: none;
    color: var(--text-secondary, var(--muted));
    padding: 8px 20px;
    font-size: 0.85em;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s var(--ease-out-expo);
    border-radius: var(--radius-lg);
    white-space: nowrap;
}
.severity-pill:hover {
    color: var(--text);
    background: var(--amethyst-muted);
}
.severity-pill:active { opacity: 0.8; }
.severity-pill:focus-visible { outline: 2px solid var(--amethyst); outline-offset: 2px; }
.severity-pill.active {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
    font-weight: 600;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--amethyst) 30%, transparent);
}

/* Phase 4.3: Table card wrapper (shared — used by Events + Correlation) */
.table-card {
    background: var(--card-bg, var(--card));
    border: 1px solid var(--card-border, var(--input-border));
    border-radius: var(--radius-md, 12px);
    overflow-x: auto;
    overflow-y: hidden;
    margin-bottom: var(--space-xl, 24px);
}
.table-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md, 16px) var(--space-lg, 20px);
    background: rgba(0,0,0,0.15);
    border-bottom: 1px solid var(--card-border, var(--input-border));
}
.table-card-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 12px);
    font-size: 1.1em;
    font-weight: 600;
    color: var(--text);
}
.table-card-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-purple, var(--accent));
    flex-shrink: 0;
}

/* Event message formatting */
.ev-val { font-family: var(--font-mono, monospace); font-weight: 600; white-space: nowrap; display: inline-block; }
.ev-arrow-icon { display: inline-block; width: 14px; height: 14px; margin: 0 4px; vertical-align: middle; color: var(--muted); }
.ev-up { color: var(--good); }
.ev-down { color: var(--crit); }
.ev-warn { color: var(--warn); }
.ev-muted { color: var(--muted); font-size: 0.9em; }
.ev-sub { display: block; margin-top: 2px; padding-left: 12px; font-size: 0.9em; color: var(--muted); }
.ev-label { color: var(--text-secondary, var(--muted)); margin-right: 6px; white-space: nowrap; display: inline-block; }
.health-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; vertical-align: middle; margin-right: 4px; }
.health-dot.good { background: var(--good); }
.health-dot.marginal { background: var(--warn); }
.health-dot.poor { background: var(--crit); }
.health-dot.unknown { background: var(--muted); }

/* Phase 4.3: Sidebar event badge (purple instead of red) */
.event-badge {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 18px; height: 18px;
    padding: 0 5px; border-radius: 9px; font-size: 0.7em; font-weight: bold;
    background: var(--accent-purple, var(--accent)); color: var(--text-on-accent); margin-left: 6px;
}

/* Phase 4.3: Severity colors (updated to purple accent) */
.sev-info { color: var(--info); }
.sev-warning { color: var(--warn); }
.sev-critical { color: var(--crit); }
.sev-icon { display: none; }
.sev-badge-info {
    background: var(--info-muted);
    color: var(--info);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
}
.sev-badge-warning {
    background: var(--warn-muted);
    color: var(--warn);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
}
.sev-badge-critical {
    background: var(--crit-muted);
    color: var(--crit);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
}

/* Phase 4.3: Acknowledge button (modern pill style) */
.btn-ack {
    padding: var(--space-sm) var(--space-md);
    min-height: 44px;
    border: 1px solid var(--input-border);
    border-radius: 16px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 0.8em;
    font-family: inherit;
    transition: all 0.2s var(--ease-out-expo);
}
.btn-ack:hover {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
    border-color: var(--accent-purple, var(--accent));
}
.btn-ack:active { opacity: 0.7; }
.btn-ack:focus-visible { outline: 2px solid var(--amethyst); outline-offset: 2px; }

/* Phase 4.3: Acknowledge All button (modern purple accent) */
.btn-ack-all {
    padding: 8px 16px;
    border: 1px solid var(--accent-purple, var(--accent));
    border-radius: var(--radius-lg);
    background: transparent;
    color: var(--accent-purple, var(--accent));
    cursor: pointer;
    font-size: 0.85em;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s var(--ease-out-expo);
}
.btn-ack-all:hover {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--amethyst) 30%, transparent);
}
.btn-ack-all:active { opacity: 0.8; }
.btn-ack-all:focus-visible { outline: 2px solid var(--amethyst); outline-offset: 2px; }

/* Phase 4.3: Show More button */
.btn-show-more {
    padding: 8px 24px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-lg);
    background: var(--card-bg, var(--card));
    color: var(--text);
    cursor: pointer;
    font-size: 0.85em;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s var(--ease-out-expo);
}
.btn-show-more:hover {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
    border-color: var(--accent-purple, var(--accent));
}
.btn-show-more:active { opacity: 0.8; }
.btn-show-more:focus-visible { outline: 2px solid var(--amethyst); outline-offset: 2px; }

.ev-ack-mark { color: var(--text-muted); font-size: 0.8em; }

.events-card-header {
    gap: var(--space-md, 16px);
}
.events-card-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm, 12px);
    flex-wrap: wrap;
}
.btn-export-events {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 14px;
    border: 1px solid var(--card-border, var(--input-border));
    border-radius: 999px;
    background: var(--surface-2, rgba(0,0,0,0.18));
    color: var(--text-secondary, var(--muted));
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85em;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s var(--ease-out-expo);
}
.btn-export-events:hover {
    color: var(--text-on-accent);
    background: var(--accent-purple, var(--accent));
    border-color: var(--accent-purple, var(--accent));
}
.btn-export-events:focus-visible { outline: 2px solid var(--amethyst); outline-offset: 2px; }

.events-feed {
    display: grid;
    gap: var(--space-sm, 12px);
    padding: var(--space-md, 16px);
}
.event-feed-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-md, 16px);
    align-items: start;
    padding: var(--space-md, 16px);
    border: 1px solid var(--border-tint);
    border-radius: var(--radius-lg, 14px);
    background: color-mix(in srgb, var(--card-bg, var(--card)) 94%, var(--accent-purple, var(--accent)) 6%);
    transition: border-color 0.15s, background 0.15s;
}
.event-feed-item:hover {
    border-color: color-mix(in srgb, var(--accent-purple, var(--accent)) 36%, var(--card-border, var(--input-border)));
    background: color-mix(in srgb, var(--card-bg, var(--card)) 88%, var(--accent-purple, var(--accent)) 12%);
}
.event-feed-item.event-acked {
    opacity: 0.62;
}
.event-feed-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.event-feed-topline {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.event-feed-time {
    color: var(--text-secondary, var(--muted));
    font-size: 0.82em;
}
.event-feed-title {
    color: var(--text);
    font-weight: 700;
    line-height: 1.3;
}
.event-feed-message {
    min-width: 0;
    color: var(--text);
    line-height: 1.45;
    overflow-wrap: anywhere;
}
.event-feed-message .ev-sub {
    padding-left: 0;
    margin-top: 4px;
}
.event-feed-action {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
}

.events-empty {
    text-align: center; padding: 60px 20px; color: var(--muted); font-size: 0.95em;
}

/* Phase 4.3: Mobile responsive */
@media (max-width: 768px) {
    .events-filter-section {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm, 12px);
    }
    .events-severity-pills {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    .severity-pill {
        padding: 6px 12px;
        font-size: 0.75em;
        min-height: 44px;
    }
    .table-card-header {
        flex-direction: column;
        gap: var(--space-sm, 12px);
        align-items: flex-start;
    }
    .events-card-actions,
    .btn-export-events {
        width: 100%;
    }
    .events-card-actions {
        justify-content: stretch;
    }
    .btn-export-events {
        min-height: 44px;
    }
    .events-feed {
        padding: var(--space-sm, 12px);
        gap: var(--space-sm, 12px);
    }
    .event-feed-item {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--space-sm, 12px);
        padding: var(--space-md, 16px);
    }
    .event-feed-action {
        justify-content: stretch;
    }
    .event-feed-action .btn-ack {
        width: 100%;
        justify-content: center;
    }
    /* Show severity icons instead of text on mobile */
    .sev-text { display: none; }
    .sev-icon { display: inline-block; width: 16px; height: 16px; vertical-align: middle; }
    [class^="sev-badge-"] { padding: 4px; line-height: 0; }
}


/* ═══════════════════════════════════════════════════════════════
   Phase 4.4: Correlation Analysis View
   ═══════════════════════════════════════════════════════════════ */

/* Correlation Header — left-aligned inline with tabs */
.correlation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md, 16px);
    margin-bottom: var(--space-lg, 20px);
    flex-wrap: wrap;
}
.correlation-header-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.correlation-view-title {
    font-size: 1.15em;
    font-weight: 700;
    color: var(--text, var(--text-primary));
}
.correlation-view-subtitle {
    font-size: 0.8em;
    color: var(--text-muted, var(--muted));
}

/* Correlation Chart Card — no hover lift (not a clickable element) */
.correlation-chart-card {
    background: var(--card-bg, var(--card));
    border: 1px solid var(--card-border, var(--input-border));
    border-radius: var(--radius-lg, 12px);
    padding: var(--space-lg, 20px);
    margin-bottom: var(--space-xl, 24px);
}
.correlation-chart-wrap {
    position: relative;
    width: 100%;
}
.correlation-chart-wrap canvas {
    display: block;
    width: 100%;
    height: 280px;
}
.correlation-chart-wrap canvas.correlation-overlay {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: auto;
}
.correlation-tooltip {
    position: absolute;
    pointer-events: none;
    background: var(--card-bg, #1e1e2e);
    border: 1px solid var(--accent-purple, #a855f7);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.8em;
    z-index: 10;
    display: none;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    line-height: 1.6;
}
.correlation-tooltip .tt-time {
    font-weight: 600;
    margin-bottom: 2px;
    color: var(--text, #fff);
}
.correlation-tooltip .tt-row {
    display: flex;
    align-items: center;
    gap: 6px;
}
.correlation-tooltip .tt-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.chart-export-buttons {
    display: flex;
    gap: 6px;
}
.chart-export-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: 1px solid var(--card-border, var(--input-border));
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 0.72em;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.2s var(--ease-out-expo);
}
.chart-export-btn:hover {
    background: var(--amethyst-muted);
    border-color: var(--accent-purple, #a855f7);
    color: var(--text);
}
.correlation-zoom-reset {
    position: absolute;
    top: 6px;
    right: 8px;
    background: var(--accent-purple, #a855f7);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    font-size: 0.75em;
    cursor: pointer;
    z-index: 5;
    opacity: 0.85;
    transition: opacity 0.2s var(--ease-out-expo);
}
.correlation-zoom-reset:hover {
    opacity: 1;
}
.correlation-zoom-reset:active {
    opacity: 0.7;
    transform: scale(0.96);
}
.correlation-zoom-reset:focus-visible {
    outline: 2px solid var(--amethyst);
    outline-offset: 2px;
}
.correlation-chart-legend {
    display: flex;
    gap: 18px;
    justify-content: center;
    padding: 12px 0 4px;
    font-size: 0.78em;
    color: var(--muted);
}
.correlation-chart-legend span[data-metric] {
    cursor: pointer;
    transition: opacity 0.2s var(--ease-out-expo), filter 0.2s var(--ease-out-expo);
    user-select: none;
    border-radius: 4px;
    padding: 6px 10px;
}
.correlation-chart-legend span[data-metric]:hover {
    filter: brightness(1.3);
    background: var(--tint-emphasis);
}
.correlation-chart-legend span[data-metric].disabled {
    opacity: 0.3;
    text-decoration: line-through;
}
.correlation-chart-legend span[data-metric]:active {
    opacity: 0.7;
    transform: scale(0.96);
}
.correlation-chart-legend span[data-metric]:focus-visible {
    outline: 2px solid var(--amethyst);
    outline-offset: 2px;
}
.correlation-chart-legend span[data-metric].disabled:hover {
    opacity: 0.5;
}

.corr-legend-events {
    position: relative;
}

.corr-event-filter-btn {
    cursor: pointer;
    font-size: 0.8em;
    opacity: 0.6;
    margin-left: var(--space-xs);
    transition: opacity 0.15s var(--ease-out-expo);
}
.corr-event-filter-btn:hover {
    opacity: 1;
}

.corr-poor-signal-badge {
    background: var(--crit-muted);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8em;
    color: var(--crit);
}

.corr-event-popover {
    position: absolute;
    z-index: 100;
    background: var(--bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-sm);
    min-width: 180px;
    box-shadow: var(--shadow-lg);
    font-size: 0.85em;
}

/* Correlation Table Card */
#correlation-table-card.table-card {
    margin-bottom: var(--space-xl, 24px);
}
#correlation-table-wrap {
    max-height: 400px;
    overflow-y: auto;
}
#correlation-table {
    width: 100%;
    margin: 0;
    table-layout: fixed;
}
#correlation-table thead tr {
    background: var(--card-bg, var(--card, var(--surface)));
}
#correlation-table thead th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.85em;
    color: var(--text);
    border-bottom: 1px solid var(--card-border, var(--input-border));
    position: sticky;
    top: 0;
    z-index: 3;
    background: var(--card-bg, var(--card, var(--surface)));
    box-shadow: 0 1px 0 var(--card-border, var(--input-border));
}
#correlation-table thead th:nth-child(1) {
    width: 180px;
}
#correlation-table thead th:nth-child(2) {
    width: 110px;
}
#correlation-table thead th:nth-child(3) {
    width: 24%;
}
#correlation-table tbody tr {
    transition: background 0.15s;
    border-bottom: 1px solid var(--border-tint);
    cursor: pointer;
}
#correlation-table tbody tr:hover {
    background: color-mix(in srgb, var(--amethyst) 8%, transparent);
}
#correlation-table tbody tr.corr-highlight {
    background: color-mix(in srgb, var(--amethyst) 30%, transparent) !important;
    box-shadow: inset 4px 0 0 var(--accent-purple, #a855f7);
}
#correlation-table tbody tr.corr-highlight td {
    color: var(--text-primary) !important;
}
#correlation-table tbody tr.corr-pinned {
    background: color-mix(in srgb, var(--amethyst) 20%, transparent) !important;
    box-shadow: inset 4px 0 0 var(--amethyst);
}
#correlation-table tbody tr.corr-pinned td {
    color: var(--text-primary) !important;
}
#correlation-table tbody tr:focus-visible {
    outline: 2px solid var(--amethyst);
    outline-offset: -2px;
}
#correlation-table tbody td {
    padding: 12px 16px;
    font-size: 0.85em;
    vertical-align: top;
}
#correlation-table .correlation-cell-timestamp {
    width: 180px;
    white-space: nowrap;
}
#correlation-table .correlation-cell-source {
    width: 110px;
    white-space: nowrap;
}
#correlation-table .correlation-cell-message {
    width: 24%;
}
#correlation-table .correlation-cell-details {
    width: auto;
}
#correlation-table .correlation-cell-message,
#correlation-table .correlation-cell-details {
    overflow-wrap: anywhere;
    word-break: break-word;
}
#correlation-table .source-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
#correlation-table .source-badge.modem {
    background: color-mix(in srgb, var(--amethyst) 20%, transparent);
    color: var(--accent-purple, #a855f7);
}
#correlation-table .source-badge.speedtest {
    background: rgba(76,175,80,0.2);
    color: var(--good, #4caf50);
}
#correlation-table .source-badge.event {
    background: rgba(255,152,0,0.2);
    color: var(--warn, #ff9800);
}

/* (correlation-desc removed — replaced by inline subtitle in header) */

/* Phase 4.4: Mobile responsive */
@media (max-width: 768px) {
    .correlation-chart-card {
        padding: var(--space-md, 16px);
    }
    .correlation-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .correlation-chart-legend {
        flex-wrap: wrap;
        gap: var(--space-xs);
        justify-content: flex-start;
        padding: var(--space-sm) 0;
    }
    .correlation-chart-legend span[data-metric] {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        font-size: 0.82em;
        padding: 6px 12px;
        border: 1px solid var(--glass-border, var(--card-border));
        border-radius: var(--radius-pill, 100px);
    }
    #correlation-table-card.table-card,
    #correlation-table-wrap {
        overflow-x: hidden;
    }

    #correlation-table-wrap {
        max-height: none;
    }

    #correlation-table,
    #correlation-table > tbody {
        display: block;
        width: 100%;
    }

    #correlation-table > thead {
        display: none;
    }

    #correlation-table tbody tr {
        display: block;
        width: 100%;
        box-sizing: border-box;
        padding: 10px 12px;
        border-bottom: 1px solid var(--card-border, var(--input-border));
    }

    #correlation-table tbody td {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
        width: 100%;
        padding: 8px 0;
        border-bottom: 1px solid var(--border-tint, rgba(255,255,255,0.08));
        font-size: 0.82em;
        white-space: normal;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    #correlation-table tbody td:last-child {
        border-bottom: none;
    }

    #correlation-table tbody td::before {
        content: attr(data-label);
        flex: 0 0 min(38%, 120px);
        color: var(--text-secondary, var(--text-muted));
        font-weight: 600;
        text-align: left;
    }

    #correlation-table .correlation-cell-timestamp,
    #correlation-table .correlation-cell-source,
    #correlation-table .correlation-cell-message,
    #correlation-table .correlation-cell-details {
        width: 100%;
        min-width: 0;
    }
}


/* ── Info-tip tooltips (CSS-only) ── */
.info-tip {
    position: relative;
    display: inline-block;
    cursor: help;
    margin-left: 4px;
    vertical-align: middle;
}
.info-tip .tip-icon {
    font-size: 0.78em;
    color: var(--muted);
    opacity: 0.7;
    font-style: normal;
}
.info-tip .tip-text {
    visibility: hidden;
    opacity: 0;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.82em;
    font-weight: normal;
    line-height: 1.5;
    white-space: normal;
    width: max-content;
    max-width: min(320px, 85vw);
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    transition: opacity 0.15s ease, visibility 0.15s ease;
    pointer-events: none;
}
.info-tip .tip-text::after {
    display: none;
}
.info-tip:hover .tip-text,
.info-tip:focus-within .tip-text {
    visibility: visible;
    opacity: 1;
}
.info-tip .tip-icon:focus {
    outline: 1px solid var(--accent);
    outline-offset: 2px;
    border-radius: 2px;
}
[data-theme="light"] .info-tip .tip-text {
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}


.demo-badge {
    display: inline-block;
    background: var(--accent, #ff9800);
    color: var(--text-on-accent);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 10px;
    vertical-align: middle;
    letter-spacing: 0.5px;
}

.hero-gaming {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    gap: 6px;
    cursor: help;
    position: relative;
}
.hero-gaming .gaming-grade { font-size: 16px; font-weight: 700; }
.hero-gaming .gaming-label { font-size: 11px; opacity: 0.8; }
.hero-gaming:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 5px;
    padding: 6px 10px;
    background: rgba(15, 20, 25, 0.95);
    color: rgba(224, 224, 224, 0.9);
    font-size: 11px;
    white-space: nowrap;
    border-radius: 4px;
    pointer-events: none;
    z-index: 10;
}
.gaming-a, .gaming-b { background: rgba(76,175,80,0.15); color: var(--color-good, var(--good)); }
.gaming-c { background: rgba(255,152,0,0.15); color: var(--color-warn, var(--warn)); }
.gaming-d, .gaming-f { background: var(--crit-muted); color: var(--color-crit, var(--crit)); }

/* ── Gaming Quality View ── */
.gaming-overview {
    display: flex;
    align-items: center;
    gap: var(--space-lg, 24px);
    padding: var(--space-lg, 24px);
    background: var(--surface);
    border-radius: var(--radius-md, 12px);
    margin-bottom: var(--space-lg, 20px);
}
.gaming-overview .gaming-gauge {
    flex: 1;
    min-width: 0;
    background: none;
    padding: 0;
    border-radius: 0;
}
.gaming-grade-big {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-md, 12px);
}
.gaming-grade-big .gaming-grade-letter {
    font-size: 56px;
    font-weight: 800;
    line-height: 1;
}
.gaming-grade-big .gaming-grade-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 4px;
}
.gaming-no-speedtest-hint {
    font-size: 0.78em;
    color: var(--text-muted);
    margin: 8px 0 0;
    display: flex;
    align-items: center;
    gap: 4px;
}
.gaming-no-speedtest-hint i, .gaming-no-speedtest-hint svg {
    width: 14px; height: 14px; flex-shrink: 0;
}
.gaming-section-title {
    font-size: 0.78em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin: 0 0 var(--space-sm, 12px);
}

/* Score breakdown — compact rows with expandable descriptions */
.gaming-components { margin-bottom: var(--space-lg, 20px); }
.gaming-comp-grid { display: grid; gap: 2px; }
.gaming-comp-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    padding: 10px 14px;
    background: var(--surface);
    border-radius: var(--radius-sm, 8px);
    cursor: pointer;
    transition: background 0.15s;
}
.gaming-comp-row:hover { background: var(--tint-hover, rgba(255,255,255,0.04)); }
.gaming-comp-row:focus-visible { outline: 2px solid var(--amethyst); outline-offset: -2px; }
.gaming-comp-icon { display: flex; color: var(--text-muted); flex-shrink: 0; }
.gaming-comp-icon i, .gaming-comp-icon svg { width: 16px; height: 16px; }
.gaming-comp-name { font-weight: 600; font-size: 0.88em; flex-shrink: 0; }
.gaming-comp-weight {
    font-size: 0.72em;
    color: var(--text-muted);
    padding: 2px 6px;
    background: var(--tint-subtle, rgba(255,255,255,0.02));
    border-radius: 4px;
    flex-shrink: 0;
}
.gaming-comp-bar-inline {
    flex: 1;
    height: 4px;
    background: var(--tint-hover, rgba(255,255,255,0.04));
    border-radius: 2px;
    overflow: hidden;
    min-width: 40px;
}
.gaming-comp-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.4s var(--ease-out-expo);
}
.gaming-comp-score {
    font-weight: 700;
    font-size: 0.92em;
    min-width: 28px;
    text-align: right;
    flex-shrink: 0;
}
.gaming-comp-chevron {
    width: 14px; height: 14px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s;
}
.gaming-comp-row.open .gaming-comp-chevron { transform: rotate(180deg); }
.gaming-comp-detail {
    font-size: 0.8em;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    padding: 0 14px 10px 42px;
    display: none;
}
.gaming-comp-row.open + .gaming-comp-detail { display: block; }
.score-good { color: var(--good); }
.score-warn { color: var(--warn); }
.score-crit { color: var(--crit); }
.fill-good { background: var(--good); }
.fill-warn { background: var(--warn); }
.fill-crit { background: var(--crit); }
/* Gaming Gauge Band */
.gaming-gauge {
    background: var(--surface);
    border-radius: 10px;
    padding: 20px 18px 12px;
}
.gaming-gauge-band {
    display: flex;
    height: 32px;
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.gaming-gauge-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    color: rgba(0,0,0,0.6);
}
.gauge-f { flex: 25; background: rgba(244,67,54,0.5); border-radius: 8px 0 0 8px; }
.gauge-d { flex: 25; background: rgba(255,120,50,0.45); }
.gauge-c { flex: 25; background: rgba(255,193,7,0.45); }
.gauge-b { flex: 15; background: rgba(139,195,74,0.45); }
.gauge-a { flex: 10; background: rgba(76,175,80,0.5); border-radius: 0 8px 8px 0; }
.gaming-gauge-track {
    position: relative;
    height: 8px;
    margin-top: 6px;
    border-radius: 4px;
    background: linear-gradient(to right,
        rgba(244,67,54,0.6) 0%, rgba(244,67,54,0.6) 25%,
        rgba(255,120,50,0.5) 25%, rgba(255,120,50,0.5) 50%,
        rgba(255,193,7,0.5) 50%, rgba(255,193,7,0.5) 75%,
        rgba(139,195,74,0.5) 75%, rgba(139,195,74,0.5) 90%,
        rgba(76,175,80,0.6) 90%, rgba(76,175,80,0.6) 100%
    );
}
.gaming-gauge-marker {
    position: absolute;
    top: -10px;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2;
    pointer-events: none;
}
.gaming-gauge-needle {
    width: 3px;
    height: 28px;
    background: var(--text);
    border-radius: 2px;
    box-shadow: 0 0 6px rgba(0,0,0,0.4);
}
.gaming-gauge-score {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    margin-top: 4px;
    white-space: nowrap;
}
[data-theme="light"] .gaming-gauge-segment { color: rgba(0,0,0,0.7); }

/* Gaming Genre Cards */
.gaming-genres { margin-bottom: var(--space-lg, 20px); }
.gaming-genres-summary {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 8px);
    padding: var(--space-md, 14px) var(--space-lg, 18px);
    border-radius: var(--radius-sm, 8px);
    font-size: 0.88em;
    font-weight: 500;
    margin-bottom: var(--space-sm, 8px);
}
.gaming-genres-summary.genre-ok {
    background: var(--good-muted);
    color: var(--good);
}
.gaming-genres-summary i, .gaming-genres-summary svg { width: 18px; height: 18px; flex-shrink: 0; }
.gaming-genre-cards.gaming-genres-collapsed { display: none; }
.gaming-genre-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-sm, 10px);
}
.gaming-genre-card {
    background: var(--surface);
    border-radius: var(--radius-sm, 10px);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-left: 3px solid transparent;
}
.gaming-genre-icon { color: var(--text-muted); }
.gaming-genre-icon i, .gaming-genre-icon svg { width: 18px; height: 18px; }
.gaming-genre-name { font-weight: 700; font-size: 0.88em; }
.gaming-genre-examples { font-size: 0.75em; color: var(--text-muted); }
.gaming-genre-verdict { font-size: 0.82em; font-weight: 500; margin-top: 4px; }
.genre-ok { border-left-color: var(--good); }
.genre-ok .gaming-genre-verdict { color: var(--good); }
.genre-warn { border-left-color: var(--warn); }
.genre-warn .gaming-genre-verdict { color: var(--warn); }
.genre-bad { border-left-color: var(--crit); }
.genre-bad .gaming-genre-verdict { color: var(--crit); }

@media (max-width: 600px) {
    .gaming-overview { flex-direction: column; gap: 16px; }
    .gaming-grade-big { flex-direction: row; gap: 12px; padding: 10px 20px; }
    .gaming-grade-big .gaming-grade-letter { font-size: 36px; }
    .gaming-grade-big .gaming-grade-text { margin-top: 0; }
    .gaming-comp-row { flex-wrap: wrap; }
    .gaming-comp-bar-inline { min-width: 100%; order: 10; }
}


/* Info icon tooltip for auto-detected values */
.info-icon {
    position: relative;
    display: inline-block;
    cursor: help;
    margin-left: 3px;
}

.info-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 5px;
    padding: 6px 10px;
    background: rgba(15, 20, 25, 0.95);
    color: rgba(224, 224, 224, 0.9);
    font-size: 11px;
    white-space: nowrap;
    border-radius: 4px;
    border: 1px solid color-mix(in srgb, var(--amethyst) 30%, transparent);
    z-index: 1000;
    pointer-events: none;
}

.issue-badge {
    background: rgba(251,191,36,0.15);
    color: var(--color-warn, var(--warn));
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: default;
}

.hero-card.health-crit .issue-badge {
    background: var(--crit-muted);
    color: var(--color-crit, var(--crit));
}


/* ── Shared Button Utilities ── */
.btn-small {
    padding: 5px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s var(--ease-out-expo);
}
.btn-accent {
    background: var(--accent-purple, var(--accent));
    color: var(--text-on-accent);
}
.btn-accent:hover { opacity: 0.85; }
.btn-muted {
    background: var(--tint-emphasis);
    color: var(--text-secondary);
    border: 1px solid var(--input-border);
}
.btn-muted:hover { background: rgba(255,255,255,0.14); }
.btn-ghost {
    background: none;
    color: var(--muted);
}
.btn-ghost:hover { color: var(--text); }


/* ── Channel View Controls ── */
.ch-controls {
    display: flex;
    gap: 12px;
    margin-bottom: var(--space-lg, 20px);
    flex-wrap: wrap;
    align-items: center;
}

/* Channel info bar */
.ch-info-bar {
    display: flex;
    gap: var(--space-md, 16px);
    padding: var(--space-sm, 8px) var(--space-md, 16px);
    margin-bottom: var(--space-md, 16px);
    background: var(--tint-subtle, rgba(255,255,255,0.02));
    border: 1px solid var(--glass-border, var(--card-border));
    border-radius: var(--radius-sm, 8px);
    font-size: 0.82em;
    flex-wrap: wrap;
    align-items: center;
}
.ch-info-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
}
.ch-info-item strong {
    color: var(--text-primary);
}
.ch-info-sep {
    width: 1px;
    height: 16px;
    background: var(--glass-border);
    flex-shrink: 0;
}
.ch-info-health {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
}
.ch-info-health.good { color: var(--good); }
.ch-info-health.tolerated { color: var(--tolerated, var(--warn)); }
.ch-info-health.marginal, .ch-info-health.warn, .ch-info-health.warning { color: var(--warn); }
.ch-info-health.critical, .ch-info-health.crit { color: var(--crit); }

/* Channel onboarding (empty state) */
.ch-onboarding {
    display: flex;
    align-items: center;
    gap: var(--space-md, 16px);
    padding: var(--space-xl, 32px);
    background: var(--tint-subtle, rgba(255,255,255,0.02));
    border: 1px dashed var(--glass-border);
    border-radius: var(--radius-md, 12px);
    color: var(--text-secondary);
}
.ch-onboarding > i, .ch-onboarding > svg {
    width: 32px; height: 32px;
    color: var(--text-muted);
    flex-shrink: 0;
}
.ch-onboarding-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ch-onboarding-text strong {
    color: var(--text-primary);
    font-size: 0.95em;
}
.ch-onboarding-text span {
    font-size: 0.85em;
}

/* Full-width chart card (modulation) */
.ch-full-width {
    grid-column: 1 / -1;
}

/* ── Channel Compare ── */
.compare-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}
.channel-select-styled,
.compare-controls select {
    padding: 8px 32px 8px 12px;
    border-radius: 20px;
    border: 1px solid var(--card-border, var(--input-border));
    background: var(--card-bg, var(--card));
    color: var(--text);
    font-size: 0.9em;
    font-family: inherit;
    font-weight: 500;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
    min-width: 160px;
}
.channel-select-styled:hover,
.compare-controls select:hover {
    border-color: var(--accent-purple, var(--accent));
}
.channel-select-styled:focus,
.compare-controls select:focus {
    outline: none;
    border-color: var(--accent-purple, var(--accent));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--amethyst) 20%, transparent);
}
.channel-select-styled:focus-visible,
.compare-controls select:focus-visible {
    outline: 2px solid var(--amethyst);
    outline-offset: 2px;
}
.compare-add-btn {
    padding: 8px 18px;
    border-radius: 20px;
    border: 1px solid var(--card-border, var(--input-border));
    background: var(--card-bg, var(--card));
    color: var(--text-secondary, var(--muted));
    font-size: 0.9em;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-out-expo);
}
.compare-add-btn:hover {
    color: var(--text-on-accent);
    background: var(--accent-purple, var(--accent));
    border-color: var(--accent-purple, var(--accent));
    box-shadow: 0 2px 8px color-mix(in srgb, var(--amethyst) 30%, transparent);
}
.compare-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}
.compare-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-on-accent);
}
.compare-chip-remove {
    background: none;
    border: none;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    font-size: 14px;
    padding: 0 2px;
    line-height: 1;
}
.compare-chip-remove:hover {
    color: var(--text-on-accent);
}

/* ── Smart Capture speedtest badge ── */
.st-row-sc {
    background: rgba(122, 162, 247, 0.06);
    border-left: 2px solid var(--accent);
}
.sc-badge {
    font-size: 0.75em;
    color: var(--accent);
    white-space: nowrap;
}
.st-sc-col {
    text-align: right;
    width: 100px;
}