:root {
    /* MeterSense logo palette (Administration/images/MeterSense.png) */
    --ms-navy: #003060;
    --ms-blue: #0050c0;
    --ms-mid-blue: #1f88b5;
    --ms-cyan: #2b9fd4;
    --ms-teal: #00a896;
    --ms-green: #40b050;
    --ms-bg: #f4f8fb;
    --ms-text: #003060;
    --ms-text-muted: #64748b;
    --ms-border: #c5d4e8;
}

body {
    background-color: var(--ms-bg);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#sankeyContainer {
    position: relative;
    /* needed for absolutely positioned filter bar */
    height: calc(100vh - 72px);
    min-height: 320px;
    overflow-x: hidden;
    overflow-y: hidden;
    width: 100%;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: distribute;
    justify-content: space-evenly;
    margin: 0;
    background-color: var(--ms-bg);
    --sankey-toolbar-pad: 42px;
}

#sankeyContainer.has-master-tabs {
    --sankey-toolbar-pad: 42px;
}

#sankey {
    width: 100%;
    height: 100%;
}

/* ---- Unified top bar (utility, meters, meta, views) ---- */
.sankey-top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    pointer-events: none;
}

.sankey-top-bar-panel {
    pointer-events: auto;
    width: 100%;
    box-sizing: border-box;
    padding: 5px 20px;
    background: #fff;
    border-bottom: 1px solid var(--ms-border);
    box-shadow: 0 1px 3px rgba(15, 45, 92, 0.06);
}

.sankey-top-controls {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: start;
    justify-content: flex-start;
    gap: 12px 16px;
    width: 100%;
    min-height: 32px;
}

.sankey-field {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: row;
    flex-direction: row;
    -ms-flex-align: center;
    align-items: center;
    gap: 8px;
    margin: 0;
    -ms-flex-negative: 0;
    flex-shrink: 0;
}

.sankey-field-label,
.sankey-top-bar .seg-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ms-text-muted);
    line-height: 1;
    white-space: nowrap;
}

#utilitySelect {
    min-width: 120px;
    color: var(--ms-navy);
    font-weight: 600;
    font-size: 12px;
    background-color: #f8fafc;
    border: 1px solid #cfd7e3;
    padding: 4px 1.75rem 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23003060' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 1rem;
}

#utilitySelect::-ms-expand {
    display: none;
}

#utilitySelect:hover {
    border-color: var(--ms-cyan);
}

#utilitySelect:focus,
#utilitySelect:focus-visible {
    outline: 2px solid var(--ms-cyan);
    outline-offset: 1px;
}

#utilitySelect option {
    font-weight: 500;
    color: #334155;
}

.sankey-top-meta {
    margin: 0 0 0 auto;
    padding: 0;
    font-size: 11px;
    line-height: 1.2;
    color: var(--ms-text-muted);
    text-align: right;
    white-space: nowrap;
    flex-shrink: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sankey-top-bar .seg-wrap {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.sankey-top-bar .seg-toggle {
    display: inline-flex;
    border: 1px solid #cfd7e3;
    border-radius: 8px;
    overflow: hidden;
    background: #f8fafc;
}

.sankey-top-bar .seg-btn {
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    background: transparent;
    border: 0;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    color: #475569;
    cursor: pointer;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
    white-space: nowrap;
    line-height: 1.2;
    transition: background 0.15s ease, color 0.15s ease;
}

.sankey-top-bar .seg-btn + .seg-btn {
    border-left: 1px solid #cfd7e3;
}

.sankey-top-bar .seg-btn:hover:not(.seg-active) {
    background: rgba(0, 168, 150, 0.1);
    color: var(--ms-navy);
}

.sankey-top-bar .seg-btn:focus,
.sankey-top-bar .seg-btn:focus-visible {
    outline: 2px solid var(--ms-cyan);
    outline-offset: 1px;
    z-index: 1;
}

.sankey-top-bar .seg-btn.seg-active {
    background: var(--ms-teal);
    color: #fff;
}

.sankey-top-bar .seg-btn.seg-active:hover {
    background: #00a3b2;
}

.sankey-top-views {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
}

.sankey-top-views[hidden] {
    display: none !important;
}

.sankey-top-views--dropdown {
    justify-content: flex-end;
}

.sankey-master-view-select {
    box-sizing: border-box;
    max-width: min(320px, 100%);
    min-width: 160px;
    margin: 0;
    padding: 5px 28px 5px 10px;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    color: #334155;
    background-color: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    cursor: pointer;
    line-height: 1.2;
    appearance: auto;
    -webkit-appearance: menulist;
}

.sankey-master-view-select:focus,
.sankey-master-view-select:focus-visible {
    outline: 2px solid var(--ms-cyan);
    outline-offset: 1px;
    border-color: var(--ms-cyan);
}

.sankey-master-tabs {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    gap: 4px;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    min-width: 0;
    padding: 1px 0;
    -ms-overflow-style: -ms-autohiding-scrollbar;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.sankey-master-tabs::-webkit-scrollbar {
    height: 5px;
}

.sankey-master-tabs::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.sankey-master-tabs .master-tab {
    flex-shrink: 0;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    background: transparent;
    border: 0;
    border-radius: 8px;
    padding: 4px 9px;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    color: #475569;
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.2;
    transition: background 0.15s ease, color 0.15s ease;
}

.sankey-master-tabs .master-tab:hover:not(.master-tab-active) {
    background: rgba(0, 168, 150, 0.1);
    color: var(--ms-navy);
}

.sankey-master-tabs .master-tab:focus,
.sankey-master-tabs .master-tab:focus-visible {
    outline: 2px solid var(--ms-cyan);
    outline-offset: 1px;
}

.sankey-master-tabs .master-tab.master-tab-active {
    background: var(--ms-teal);
    color: #fff;
    box-shadow: 0 1px 4px rgba(11, 188, 161, 0.35);
}

.sankey-master-tabs .master-tab.master-tab-active:hover {
    background: #00a3b2;
    color: #fff;
}

#sankey.sankey-chart,
.sankey-chart {
    box-sizing: border-box;
    padding-top: var(--sankey-toolbar-pad);
}

/* ---- ECharts hover tooltips (styled like compact cards) ---- */
.sankey-echarts-tooltip {
    border-radius: 12px !important;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.14) !important;
    max-width: 340px !important;
}

.sankey-tip-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--ms-navy);
    margin-bottom: 6px;
    line-height: 1.3;
    word-break: break-word;
    overflow-wrap: break-word;
}

.sankey-tip-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 6px;
    margin-bottom: 6px;
}

.sankey-tip-node {
    font-weight: 600;
    color: var(--ms-navy);
    word-break: break-word;
    overflow-wrap: break-word;
}

.sankey-tip-arrow {
    color: var(--ms-text-muted);
    font-weight: 600;
}

.sankey-tip-value {
    font-size: 15px;
    font-weight: 700;
    color: var(--ms-navy);
}

.sankey-tip-total {
    font-size: 13px;
    color: #334155;
    margin-bottom: 4px;
}

.sankey-tip-total strong {
    color: var(--ms-navy);
}

.sankey-tip-muted {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--ms-text-muted);
    margin: 6px 0 4px;
}

.sankey-tip-from {
    display: inline;
    font-size: 12px;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
    margin: 0;
    color: var(--ms-text-muted);
}

.sankey-tip-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.sankey-tip-list li {
    font-size: 12px;
    color: #475569;
    padding: 3px 0;
    border-top: 1px solid #f1f5f9;
    line-height: 1.35;
}

.sankey-tip-list li:first-child {
    border-top: 0;
    padding-top: 0;
}

.sankey-tip-list li strong {
    color: var(--ms-navy);
}

/* ---- Tablet fullscreen (optional; toggled by display-sankey.php) ---- */
#sankeyContainer:fullscreen,
#sankeyContainer:-webkit-full-screen {
    width: 100%;
    height: 100%;
    max-height: 100%;
    background-color: var(--ms-bg);
}

/* Fallback when the Fullscreen API is unavailable (older mobile browsers). */
html.sankey-tablet-fullscreen-fallback body {
    overflow: hidden;
}

html.sankey-tablet-fullscreen-fallback .navbar,
html.sankey-tablet-fullscreen-fallback .offcanvas,
html.sankey-tablet-fullscreen-fallback .offcanvas-backdrop {
    display: none !important;
}

html.sankey-tablet-fullscreen-fallback #sankeyContainer {
    position: fixed;
    inset: 0;
    z-index: 1040;
    width: 100%;
    height: 100dvh !important;
    height: 100vh !important;
    min-height: 0;
}

.sankey-tablet-exit-fs {
    display: none;
    position: absolute;
    right: 12px;
    bottom: 12px;
    z-index: 1102;
    padding: 8px 14px;
    border: 1px solid var(--ms-border);
    border-radius: 999px;
    background: #fff;
    color: var(--ms-navy);
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    line-height: 1.2;
    box-shadow: 0 4px 14px rgba(15, 45, 92, 0.14);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

html.sankey-tablet-device .sankey-tablet-exit-fs {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sankey-tablet-exit-fs:hover,
.sankey-tablet-exit-fs:focus {
    border-color: var(--ms-cyan);
    color: var(--ms-teal);
    outline: none;
}

html[data-bs-theme="dark"] .sankey-tablet-exit-fs {
    background: var(--ms-card, #002447);
    color: var(--ms-text);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

html[data-bs-theme="dark"] .sankey-tablet-exit-fs:hover,
html[data-bs-theme="dark"] .sankey-tablet-exit-fs:focus {
    border-color: var(--ms-teal);
    color: var(--ms-teal);
}

@media (max-width: 900px) {
    .sankey-top-bar-panel {
        padding: 5px 12px;
    }

    .sankey-top-controls {
        flex-wrap: wrap;
        gap: 8px 10px;
    }

    .sankey-top-views {
        flex: 1 1 100%;
        order: 5;
        padding: 4px 0 0;
        justify-content: flex-start;
    }

    .sankey-top-meta {
        margin-left: auto;
        order: 6;
    }

    #sankeyContainer,
    #sankeyContainer.has-master-tabs {
        --sankey-toolbar-pad: 72px;
    }
}

/* ---- Dark theme (data-bs-theme set by theme.js via header.php) ---- */
html[data-bs-theme="dark"] {
    --ms-navy: #8eb8d9;
    --ms-blue: #4d9fe8;
    --ms-mid-blue: #5aafe8;
    --ms-cyan: #2b9fd4;
    --ms-teal: #00c9b0;
    --ms-green: #5ed472;
    --ms-bg: #000c18;
    --ms-text: #e8f2fa;
    --ms-text-muted: #8eb0cc;
    --ms-border: #1a4d7a;
}

html[data-bs-theme="dark"] body {
    background-color: var(--ms-bg);
}

html[data-bs-theme="dark"] .sankey-top-bar-panel {
    background: var(--ms-card, #002447);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
}

html[data-bs-theme="dark"] #utilitySelect {
    color: var(--ms-text);
    background-color: var(--ms-zebra-even, #001a33);
    border-color: var(--ms-border);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e8f2fa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
}

html[data-bs-theme="dark"] #utilitySelect option {
    color: var(--ms-text);
    background: var(--ms-card, #002447);
}

html[data-bs-theme="dark"] .sankey-top-bar .seg-toggle {
    border-color: var(--ms-border);
    background: var(--ms-zebra-even, #001a33);
}

html[data-bs-theme="dark"] .sankey-top-bar .seg-btn {
    color: var(--ms-text-muted);
}

html[data-bs-theme="dark"] .sankey-top-bar .seg-btn + .seg-btn {
    border-left-color: var(--ms-border);
}

html[data-bs-theme="dark"] .sankey-top-bar .seg-btn:hover:not(.seg-active) {
    background: rgba(255, 255, 255, 0.06);
    color: var(--ms-text);
}

/* Active meter/source pills: subtle highlight instead of solid bright teal */
html[data-bs-theme="dark"] .sankey-top-bar .seg-btn.seg-active {
    background: rgba(0, 168, 150, 0.16);
    color: #66e0d0;
    box-shadow: inset 0 0 0 1px rgba(0, 168, 150, 0.38);
}

html[data-bs-theme="dark"] .sankey-top-bar .seg-btn.seg-active:hover {
    background: rgba(0, 168, 150, 0.24);
    color: #8ae8dc;
}

html[data-bs-theme="dark"] .sankey-master-view-select {
    color: var(--ms-text);
    background-color: var(--ms-zebra-even, #001a33);
    border-color: var(--ms-border);
}

html[data-bs-theme="dark"] .sankey-master-tabs {
    scrollbar-color: #1a4d7a transparent;
    gap: 2px;
    padding: 2px 4px;
    background: var(--ms-zebra-even, #001a33);
    border: 1px solid var(--ms-border);
    border-radius: 8px;
}

html[data-bs-theme="dark"] .sankey-master-tabs::-webkit-scrollbar-thumb {
    background: #1a4d7a;
}

html[data-bs-theme="dark"] .sankey-master-tabs .master-tab {
    color: var(--ms-text-muted);
}

html[data-bs-theme="dark"] .sankey-master-tabs .master-tab:hover:not(.master-tab-active) {
    background: rgba(255, 255, 255, 0.06);
    color: var(--ms-text);
}

html[data-bs-theme="dark"] .sankey-master-tabs .master-tab.master-tab-active {
    background: rgba(0, 168, 150, 0.16);
    color: #66e0d0;
    box-shadow: inset 0 0 0 1px rgba(0, 168, 150, 0.38);
}

html[data-bs-theme="dark"] .sankey-master-tabs .master-tab.master-tab-active:hover {
    background: rgba(0, 168, 150, 0.24);
    color: #8ae8dc;
}

html[data-bs-theme="dark"] .sankey-echarts-tooltip {
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.55) !important;
}

html[data-bs-theme="dark"] .sankey-tip-total {
    color: var(--ms-text);
}

html[data-bs-theme="dark"] .sankey-tip-list li {
    color: var(--ms-text-muted);
    border-top-color: var(--ms-border);
}