/* ============================================================
   UNIFIED STYLESHEET — Analytics Dashboard + Project Manager
   ============================================================ */

:root {
    --page-plane: #f8f9fb;
    --surface-1: #ffffff;
    --surface-2: #f5f6f9;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --gridline: #eef0f4;
    --border: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.04);
    --shadow-md: 0 8px 20px rgba(17, 24, 39, 0.08), 0 2px 6px rgba(17, 24, 39, 0.04);
    --shadow-lg: 0 20px 40px rgba(17, 24, 39, 0.12), 0 4px 12px rgba(17, 24, 39, 0.06);

    --series-views: #6366f1;
    --series-likes: #ec4899;
    --series-comments: #10b981;
    --series-shares: #f59e0b;
    --series-followers: #8b5cf6;

    --accent-instagram-a: #c1358f;
    --accent-instagram-b: #f3762f;
    --accent-twitter-a: #1d9bf0;
    --accent-twitter-b: #0c7abf;
    --accent-youtube: #ef4444;
    --accent-youtube-b: #f87171;

    --positive: #16a34a;
    --negative: #dc2626;
    --critical: #dc2626;
    --brand-a: #7c6ef2;
    --brand-b: #5b4fe0;
    --brand-ink: #ffffff;
}

:root[data-theme="dark"] {
    --page-plane: #0d0e12;
    --surface-1: #16171d;
    --surface-2: #1c1d24;
    --text-primary: #f3f4f6;
    --text-secondary: #b0b3bd;
    --text-muted: #767a87;
    --gridline: #262832;
    --border: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.5), 0 4px 14px rgba(0, 0, 0, 0.3);

    --series-views: #818cf8;
    --series-likes: #f472b6;
    --series-comments: #34d399;
    --series-shares: #fbbf24;
    --series-followers: #a78bfa;

    --positive: #34d399;
    --negative: #f87171;
    --critical: #f87171;
}

* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    margin: 0;
    width: 100%;
    overflow-x: hidden;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--page-plane);
    color: var(--text-primary);
}

img,
video,
iframe,
canvas,
svg {
    max-width: 100%;
}

.app-shell {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px 32px 48px;
}

.app-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 6px;
}

.app-header h1 {
    font-size: 1.85rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.02em;
}

.app-subtitle {
    margin: 4px 0 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.project-manager-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 36px;
    padding: 8px 13px;
    border-radius: 8px;
    background: var(--text-primary);
    color: var(--surface-1);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
}

.project-manager-link:hover {
    opacity: 0.86;
}

.date-pill {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface-1);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.date-pill-static {
    cursor: default;
}

.range-popover {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 30;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface-1);
    box-shadow: var(--shadow-lg);
    cursor: default;
    overflow: hidden;
}

.range-popover.open {
    display: block;
}

.range-popover-body {
    display: flex;
    align-items: stretch;
}

.preset-list {
    display: flex;
    flex-direction: column;
    width: 168px;
    padding: 8px;
    border-right: 1px solid var(--border);
    max-height: 320px;
    overflow-y: auto;
}

.preset-item {
    font: inherit;
    font-size: 0.82rem;
    text-align: left;
    padding: 9px 12px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
}

.preset-item:hover {
    background: var(--surface-2);
}

.preset-item.active {
    background: rgba(124, 110, 242, 0.12);
    color: var(--brand-b);
    font-weight: 700;
}

.calendar-pane {
    position: relative;
    padding: 14px 16px;
    width: 300px;
}

.date-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.date-input-group {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
}

.date-input-group label {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.date-input-group input {
    font: inherit;
    font-size: 0.78rem;
    padding: 6px 8px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-primary);
    width: 100%;
}

.date-input-sep {
    color: var(--text-muted);
    margin-top: 14px;
}

.calendar-nav {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 4px;
}

.calendar-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-secondary);
    cursor: pointer;
}

.calendar-nav-btn:hover {
    border-color: var(--brand-b);
    color: var(--brand-b);
}

.calendar-months {
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: 260px;
    overflow-y: auto;
}

.calendar-month-title {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px 2px;
    row-gap: 8px;
}

.calendar-weekday {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-muted);
    text-align: center;
    padding: 3px 0;
}

.calendar-day {
    font: inherit;
    font-size: 0.75rem;
    text-align: center;
    width: 28px;
    height: 28px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    user-select: none;
}

.calendar-grid {
    user-select: none;
}

.calendar-day:hover:not(:disabled) {
    background: var(--surface-2);
}

.calendar-day:disabled {
    color: transparent;
    cursor: default;
}

.calendar-day.in-range {
    background: rgba(91, 79, 224, 0.16);
    border-radius: 50%;
}

.calendar-day.range-start,
.calendar-day.range-end {
    background: var(--brand-b);
    color: #fff;
    font-weight: 700;
    border-radius: 50%;
}

.calendar-day.today:not(.range-start):not(.range-end) {
    box-shadow: inset 0 0 0 1px var(--brand-b);
}

.range-popover-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    background: var(--surface-2);
}

.compare-toggle-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    width: 34px;
    height: 19px;
    display: inline-block;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--gridline);
    border-radius: 999px;
    transition: background 0.15s ease;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    width: 15px;
    height: 15px;
    left: 2px;
    top: 2px;
    border-radius: 50%;
    background: #fff;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease;
}

.toggle-switch input:checked+.toggle-slider {
    background: var(--brand-b);
}

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(15px);
}

.range-popover-actions {
    display: flex;
    gap: 8px;
}

.range-popover-actions .reset-btn,
.range-popover-actions .apply-btn {
    padding: 7px 13px;
    font-size: 0.8rem;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface-1);
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}

.icon-btn:hover {
    border-color: var(--brand-b);
    color: var(--brand-b);
}

.icon-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

.icon-btn:disabled .refresh-icon {
    animation: spin 0.8s linear infinite;
}

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

.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font: inherit;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 10px 16px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, var(--brand-a), var(--brand-b));
    color: #fff;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.export-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.last-updated {
    display: block;
    font-size: 0.74rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.filter-bar {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px 18px;
    margin-bottom: 26px;
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-group select {
    font: inherit;
    font-size: 0.83rem;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 150px;
}

.filter-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

.apply-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: rgba(124, 110, 242, 0.12);
    color: var(--brand-b);
    cursor: pointer;
}

.apply-btn:hover {
    background: rgba(124, 110, 242, 0.2);
}

.reset-btn {
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-1);
    color: var(--text-secondary);
    cursor: pointer;
}

.reset-btn:hover {
    border-color: var(--text-muted);
}

.section-block {
    margin-bottom: 30px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 14px;
}

.info-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
    font-size: 0.65rem;
    font-style: italic;
    cursor: default;
}

.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 18px;
}

.kpi-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px 20px 14px;
    box-shadow: var(--shadow-sm);
}

.kpi-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.kpi-icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.kpi-icon.youtube {
    background: linear-gradient(135deg, var(--accent-youtube), var(--accent-youtube-b));
}

.kpi-icon.instagram {
    background: linear-gradient(135deg, var(--accent-instagram-a), var(--accent-instagram-b));
}

.kpi-icon.twitter {
    background: linear-gradient(135deg, var(--accent-twitter-a), var(--accent-twitter-b));
}

.table-platform-icon {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.table-platform-icon svg {
    width: 12px;
    height: 12px;
}

.table-platform-icon.youtube {
    background: linear-gradient(135deg, var(--accent-youtube), var(--accent-youtube-b));
}

.table-platform-icon.instagram {
    background: linear-gradient(135deg, var(--accent-instagram-a), var(--accent-instagram-b));
}

.table-platform-icon.twitter {
    background: linear-gradient(135deg, var(--accent-twitter-a), var(--accent-twitter-b));
}

.kpi-card-header h3 {
    font-size: 0.98rem;
    font-weight: 700;
    margin: 0;
    flex: 1;
}

.view-details-btn {
    font: inherit;
    font-size: 0.74rem;
    font-weight: 600;
    padding: 6px 11px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.view-details-btn:hover {
    border-color: var(--brand-b);
    color: var(--brand-b);
}

.kpi-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.kpi-stat-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

.kpi-stat-value {
    font-size: 1.15rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    display: block;
}

.kpi-stat-trend {
    font-size: 0.72rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-top: 3px;
}

.kpi-stat-trend.up {
    color: var(--positive);
}

.kpi-stat-trend.down {
    color: var(--negative);
}

.kpi-stat-trend.flat {
    color: var(--text-muted);
}

.kpi-spark-wrap {
    height: 56px;
}

.card-status {
    color: var(--text-secondary);
    font-size: 0.88rem;
    padding: 6px 0;
}

.card-status.error {
    color: var(--critical);
    background: rgba(220, 38, 38, 0.08);
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.82rem;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr) 1.4fr;
    gap: 16px;
}

@media (max-width: 1100px) {
    .analytics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .donut-tile {
        grid-column: 1 / -1;
    }
}

.analytics-tile {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
}

.analytics-label {
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 8px;
}

.analytics-value-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.analytics-value {
    font-size: 1.4rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.trend-badge {
    font-size: 0.74rem;
    font-weight: 700;
}

.trend-badge.up {
    color: var(--positive);
}

.trend-badge.down {
    color: var(--negative);
}

.trend-badge.flat {
    color: var(--text-muted);
}

.analytics-chart-wrap {
    height: 90px;
}

.donut-row {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.donut-chart-wrap {
    position: relative;
    width: 140px;
    height: 140px;
    flex-shrink: 0;
}

.donut-legend {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    min-width: 140px;
}

.donut-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
}

.donut-legend-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

.donut-legend-name {
    flex: 1;
    color: var(--text-primary);
    font-weight: 600;
}

.donut-legend-pct {
    color: var(--text-muted);
    font-size: 0.76rem;
}

.posts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}

.posts-header .section-title {
    margin: 0;
}

.posts-tabs {
    display: flex;
    gap: 6px;
    background: var(--surface-2);
    border-radius: 10px;
    padding: 4px;
}

.posts-tab {
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 7px 13px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
}

.posts-tab.active {
    background: var(--surface-1);
    color: var(--brand-b);
    box-shadow: var(--shadow-sm);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.recent-post-card {
    position: relative;
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.recent-post-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.recent-post-media {
    position: relative;
    width: 100%;
    height: 68px;
    background: var(--gridline);
}

.recent-post-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.recent-post-platform {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 19px;
    height: 19px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.recent-post-platform svg {
    width: 10px;
    height: 10px;
}

.recent-post-platform.youtube {
    background: linear-gradient(135deg, var(--accent-youtube), var(--accent-youtube-b));
}

.recent-post-platform.instagram {
    background: linear-gradient(135deg, var(--accent-instagram-a), var(--accent-instagram-b));
}

.recent-post-platform.twitter {
    background: linear-gradient(135deg, var(--accent-twitter-a), var(--accent-twitter-b));
}

.recent-post-body {
    padding: 10px 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.recent-post-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recent-post-metrics {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: auto;
}

.metric-bar-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.metric-bar-label {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-bar-label svg {
    width: 9px;
    height: 9px;
}

.metric-bar-track {
    flex: 1;
    height: 5px;
    border-radius: 999px;
    background: var(--gridline);
    overflow: hidden;
}

.metric-bar-fill {
    height: 100%;
    border-radius: 999px;
}

.metric-bar-value {
    min-width: 34px;
    text-align: right;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.empty-state {
    text-align: center;
    padding: 28px 16px;
    color: var(--text-muted);
    font-size: 0.88rem;
}

.page-footer {
    text-align: center;
    padding: 20px 0 4px;
    font-size: 0.76rem;
    color: var(--text-muted);
}

/* ---------- saved presets ---------- */

.preset-column {
    display: flex;
    flex-direction: column;
    width: 168px;
    border-right: 1px solid var(--border);
}

.preset-column .preset-list {
    width: auto;
    border-right: none;
    flex: 1;
}

.save-preset-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 600;
    padding: 9px 12px;
    border: none;
    border-top: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--brand-b);
    cursor: pointer;
    text-align: left;
}

.save-preset-btn:hover {
    background: rgba(124, 110, 242, 0.12);
}

.saved-preset-item {
    position: relative;
    padding-right: 26px !important;
}

.saved-preset-remove {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8rem;
    line-height: 1;
}

.saved-preset-remove:hover {
    background: var(--gridline);
    color: var(--critical);
}

/* ---------- refresh countdown ---------- */

.refresh-countdown {
    margin-left: 10px;
}

/* ---------- search box ---------- */

.posts-search {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-muted);
    margin-left: auto;
}

.posts-search input {
    border: none;
    background: transparent;
    outline: none;
    font: inherit;
    font-size: 0.8rem;
    color: var(--text-primary);
    width: 160px;
}

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

/* ---------- platform trend chart ---------- */

.trend-chart-tile {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.trend-chart-wrap {
    height: 220px;
}

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

.trend-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.trend-legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 3px;
}

/* ---------- best-time-to-post heatmap ---------- */

.heatmap-scroll {
    overflow-x: auto;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: 32px repeat(24, 1fr);
    gap: 3px;
    min-width: 640px;
}

.heatmap-hour-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-align: center;
}

.heatmap-day-label {
    font-size: 0.68rem;
    color: var(--text-secondary);
    font-weight: 600;
    display: flex;
    align-items: center;
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    background: var(--gridline);
    cursor: default;
}

.heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.heatmap-legend-scale {
    display: flex;
    gap: 3px;
}

.heatmap-legend-scale span {
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

/* ---------- top post badge ---------- */

.top-post-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 0.62rem;
    font-weight: 800;
    padding: 3px 7px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

/* ---------- skeleton loading ---------- */

@keyframes skeleton-shimmer {
    0% {
        background-position: -200px 0;
    }

    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    border-radius: 8px;
    background: linear-gradient(90deg, var(--gridline) 25%, var(--surface-2) 37%, var(--gridline) 63%);
    background-size: 400px 100%;
    animation: skeleton-shimmer 1.4s ease infinite;
}

.skeleton-kpi-card {
    height: 190px;
    border-radius: 16px;
}

.skeleton-post-card {
    height: 200px;
    border-radius: 14px;
}

/* ---------- post detail modal ---------- */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(10, 12, 9, 0.55);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.open {
    display: flex;
}

.modal-content {
    background: var(--surface-1);
    border-radius: 16px;
    max-width: 480px;
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: rgba(10, 12, 9, 0.5);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
}

.modal-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--gridline);
}

.modal-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.modal-body {
    padding: 18px 20px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.modal-platform-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-caption {
    font-size: 0.92rem;
    line-height: 1.5;
    color: var(--text-primary);
    margin: 0;
}

.modal-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.modal-stat {
    background: var(--surface-2);
    border-radius: 10px;
    padding: 10px 12px;
}

.modal-stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 3px;
}

.modal-stat-value {
    font-size: 1.1rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.modal-view-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand-a), var(--brand-b));
    color: var(--brand-ink);
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
}

/* ---------- toasts ---------- */

.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 16px;
    border-radius: 10px;
    background: var(--surface-1);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    animation: toast-in 0.2s ease both;
}

.toast.success {
    border-left: 3px solid var(--positive);
}

.toast.error {
    border-left: 3px solid var(--critical);
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

@media (max-width: 720px) {
    .app-shell {
        padding: 18px 16px 32px;
    }

    .kpi-stats {
        grid-template-columns: 1fr;
    }

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

    .posts-search {
        margin-left: 0;
        width: 100%;
    }

    .posts-search input {
        width: 100%;
    }
}