/* ===== Dashboard Styles — GitHub Dark Theme ===== */
:root {
    --bg-primary:   #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary:  #21262d;
    --border:       #30363d;
    --text-primary: #c9d1d9;
    --text-secondary:#8b949e;
    --accent:       #58a6ff;
    --green:        #3fb950;
    --yellow:       #d29922;
    --red:          #f85149;
    --orange:       #f0883e;
    --purple:       #bc8cff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

/* ===== Top Nav ===== */
.top-nav {
    display: flex;
    gap: 4px;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
}

/* ===== Dashboard ===== */
.dashboard {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px;
}

.dashboard-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 0;
}

.dashboard-title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

/* Timezone toggle */
.tz-toggle {
    display: flex;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
    margin-left: auto;
}

.tz-btn {
    background: transparent;
    border: none;
    color: #8b949e;
    padding: 6px 14px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tz-btn.active {
    background: rgba(56,132,244,0.15);
    color: #58a6ff;
}

.tz-btn:hover:not(.active) {
    background: rgba(255,255,255,0.04);
    color: #c9d1d9;
}

.dash-info-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    min-width: 34px;
    border: 1px solid #30363d;
    border-radius: 50%;
    background: transparent;
    color: #8b949e;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.dash-info-btn:hover {
    background: rgba(255,255,255,0.04);
    color: #58a6ff;
    border-color: #58a6ff;
}

.dash-info-btn.active {
    background: rgba(56,132,244,0.1);
    color: #58a6ff;
    border-color: #58a6ff;
}

.dash-info-btn svg {
    flex-shrink: 0;
}

.dash-info-banner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 16px;
    background: rgba(56, 132, 244, 0.06);
    border: 1px solid rgba(56, 132, 244, 0.15);
    border-radius: 8px;
    animation: dashSlideDown 0.25s ease-out;
}

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

.dash-info-content {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    flex: 1;
}

.dash-info-icon {
    color: #58a6ff;
    flex-shrink: 0;
    margin-top: 1px;
}

.dash-info-text {
    color: #8b949e;
    font-size: 13px;
    line-height: 1.5;
}

.dash-info-close {
    background: none;
    border: none;
    color: #8b949e;
    cursor: pointer;
    font-size: 14px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.dash-info-close:hover {
    background: rgba(255,255,255,0.04);
    color: #c9d1d9;
}

/* ===== Section Header ===== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.section-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ===== Collapsible Sections ===== */
.collapsible-section {
    margin-top: 16px;
    border: 1px solid #21262d;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.collapsible-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}

.collapsible-header:hover {
    background: rgba(255,255,255,0.03);
}

.collapsible-header h2 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
}

.collapse-arrow {
    font-size: 12px;
    color: #8b949e;
    min-width: 14px;
    transition: color 0.2s;
}

.collapsible-section.open .collapse-arrow {
    color: var(--accent);
}

.collapsible-body {
    padding: 0 18px 18px;
}

/* ===== KPI Row ===== */
.kpi-row,
.hourly-kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.kpi-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    transition: border-color 0.2s;
}

.kpi-card:hover {
    border-color: var(--text-secondary);
}

.kpi-card.kpi-small {
    padding: 12px;
}

.kpi-card.kpi-small .kpi-value {
    font-size: 22px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.kpi-label {
    color: var(--text-secondary);
    font-size: 11px;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-active  .kpi-value { color: var(--green); }
.kpi-reserved .kpi-value { color: var(--yellow); }
.kpi-deleted  .kpi-value { color: var(--red); }
.kpi-archive  .kpi-value { color: var(--purple); }
.kpi-peak     .kpi-value { color: var(--accent); }
.kpi-sold     .kpi-value { color: #f0c040; }
.kpi-sold { border-color: #f0c04044; }
.kpi-sold:hover { border-color: #f0c040; }

/* ===== Period Bar ===== */
.period-bar {
    display: flex;
    align-items: center;
    gap: 6px;
}

.period-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.period-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.period-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ===== Charts Grid ===== */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* ===== Chart Card — FIXED HEIGHT to prevent infinite growth ===== */
.chart-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    height: 340px;          /* FIXED height */
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chart-card.wide {
    grid-column: 1 / -1;
}

.chart-card h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex-shrink: 0;
}

/* Canvas wrapper — takes remaining space, position:relative for Chart.js */
.chart-wrapper {
    position: relative;
    flex: 1;
    min-height: 0;        /* critical for flex children */
}

.chart-wrapper canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
}

/* ===== Responsive ===== */
@media (max-width: 800px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .chart-card.wide {
        grid-column: 1;
    }
    .chart-card {
        height: 280px;
    }
    .kpi-row,
    .hourly-kpi-row {
        grid-template-columns: repeat(3, 1fr);
    }
    .dashboard {
        padding: 12px;
    }
    .kpi-value {
        font-size: 22px;
    }
    .dashboard-title {
        font-size: 20px;
    }
    .dashboard-title-row {
        margin-bottom: 14px;
    }
    .tz-btn {
        padding: 5px 10px;
        font-size: 12px;
    }
    .top-nav {
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .dashboard {
        padding: 8px;
    }
    .dashboard-title {
        font-size: 18px;
    }
    .dashboard-title-row {
        margin-bottom: 10px;
        flex-wrap: wrap;
    }
    .tz-toggle {
        margin-left: 0;
        order: 3;
    }
    .tz-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
    .kpi-row,
    .hourly-kpi-row {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .kpi-card {
        padding: 12px 8px;
    }
    .kpi-value {
        font-size: 20px;
    }
    .kpi-label {
        font-size: 10px;
    }
    .kpi-card.kpi-small {
        padding: 10px 8px;
    }
    .kpi-card.kpi-small .kpi-value {
        font-size: 18px;
    }
    .period-bar {
        flex-wrap: wrap;
        gap: 4px;
    }
    .period-btn,
    .funnel-btn,
    .heatmap-btn,
    .heatmap-type-btn {
        padding: 5px 10px;
        font-size: 12px;
    }
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    .section-header h2 {
        font-size: 14px;
    }
    .chart-card {
        height: 240px;
        padding: 12px;
    }
    .chart-card h3 {
        font-size: 11px;
    }
    .top-nav {
        padding: 6px 10px;
    }
    .nav-link {
        padding: 6px 12px;
        font-size: 13px;
    }
    /* Funnel compact */
    .funnel-container {
        padding: 12px;
    }
    .funnel-meta {
        font-size: 11px;
    }
}

/* ===== Pipeline / Funnel ===== */
.funnel-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.funnel-meta {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 16px;
    text-align: right;
}
.funnel-meta b {
    color: var(--text-primary);
}

.funnel-stages {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.funnel-stage {
    display: grid;
    grid-template-columns: 280px 1fr 130px;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: 6px;
    background: var(--bg-primary);
    border: 1px solid transparent;
    transition: border-color 0.2s, background 0.2s;
}

.funnel-stage:hover {
    border-color: var(--border);
    background: var(--bg-tertiary);
}

.funnel-stage.funnel-filter {
    opacity: 0.85;
}

.funnel-label {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.funnel-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.funnel-text {
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.funnel-bar-track {
    height: 26px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.funnel-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    min-width: 3px;
}

.funnel-value {
    text-align: right;
    font-size: 15px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
    white-space: nowrap;
}

.funnel-pct {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 6px;
}

/* Funnel buttons (reuse period-bar styles) */
.funnel-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.funnel-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}
.funnel-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ===== Heatmap ===== */
.heatmap-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.heatmap-hint {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 14px;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: 36px repeat(24, 1fr) 50px;
    gap: 2px;
    min-width: 650px;
}

.hm-corner {
    /* empty top-left cell */
}

.hm-hour-label {
    text-align: center;
    font-size: 10px;
    color: var(--text-secondary);
    padding-bottom: 4px;
    font-variant-numeric: tabular-nums;
}

.hm-day-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    padding-right: 4px;
}

.hm-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    cursor: default;
    transition: transform 0.1s, box-shadow 0.1s;
    min-height: 26px;
}

.hm-cell:hover {
    transform: scale(1.25);
    box-shadow: 0 0 8px rgba(88, 166, 255, 0.4);
    z-index: 2;
    position: relative;
}

.hm-row-total-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding-bottom: 4px;
}

.hm-row-total {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-variant-numeric: tabular-nums;
}

.hm-col-total {
    border-top: 2px solid rgba(240, 192, 64, 0.3);
    border-radius: 3px;
    font-weight: 600;
}

.hm-sum-row {
    font-weight: 700;
    color: #f0c040;
    border-top: 2px solid rgba(240, 192, 64, 0.3);
}

.heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    margin-top: 14px;
}

.hm-legend-box {
    width: 20px;
    height: 14px;
    border-radius: 2px;
}

.hm-legend-label {
    font-size: 11px;
    color: var(--text-secondary);
    padding: 0 6px;
}

/* Heatmap buttons reuse period-bar */
.heatmap-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.heatmap-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}
.heatmap-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* Heatmap type toggle (Все товары / 100% продан) */
.heatmap-type-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.heatmap-type-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}
.heatmap-type-btn.active {
    background: #f0c040;
    border-color: #f0c040;
    color: #000;
    font-weight: 600;
}

@media (max-width: 800px) {
    .heatmap-grid {
        min-width: 500px;
    }
    .hm-cell {
        font-size: 8px;
        min-height: 20px;
    }
    .heatmap-card {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .heatmap-grid {
        min-width: 420px;
        gap: 1px;
    }
    .hm-cell {
        font-size: 7px;
        min-height: 18px;
    }
    .hm-hour-label {
        font-size: 8px;
    }
    .hm-day-label {
        font-size: 10px;
    }
    .hm-row-total {
        font-size: 10px;
    }
    .heatmap-card {
        padding: 8px;
    }
    .heatmap-hint {
        font-size: 11px;
    }
}

/* Funnel responsive */
@media (max-width: 800px) {
    .funnel-stage {
        grid-template-columns: 1fr 1fr 90px;
    }
    .funnel-text {
        font-size: 11px;
    }
}
@media (max-width: 480px) {
    .funnel-stage {
        grid-template-columns: 1fr 80px;
    }
    .funnel-bar-track {
        display: none;
    }
    .funnel-value {
        font-size: 13px;
    }
}