/* Super-admin console: shared page chrome + hand-rolled SVG charts.
 * Used by dashboard/admin/{analytics,usage,broadcasts}.html with
 * js/admin/charts.js. Colors come from CSS custom properties so a theme
 * switch (html[data-theme]) recolors every chart without a re-render. */

:root {
  --chart-1: #3a7fa0;   /* mobile  — steel blue */
  --chart-2: #7c5cc4;   /* cloud   — violet */
  --chart-3: #b8701a;   /* desktop — amber */
  --chart-4: #64748b;   /* api     — slate */
  --chart-5: #0f8a7e;   /* teal */
  --chart-6: #be4b72;   /* rose */
  --chart-grid: #e6edf5;
  --chart-axis: #6a7d94;
  --chart-heat: 58, 127, 160;
}
:root[data-theme="dark"] {
  --chart-1: #6ab0cc;
  --chart-2: #a48ae0;
  --chart-3: #e0a24a;
  --chart-4: #9aa8b8;
  --chart-5: #3cc0b2;
  --chart-6: #e07a9f;
  --chart-grid: #262c34;
  --chart-axis: #8b949e;
  --chart-heat: 106, 176, 204;
}

body.admin-pending main { visibility: hidden; }

/* Page head (matches the other admin pages) */
.adm-head { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.adm-head h1 { font-family: 'Playfair Display', Georgia, serif; font-style: italic; font-weight: 900; font-size: 2.2rem; color: var(--text); margin: 0; letter-spacing: -0.01em; }
.adm-head .crumb { font-family: 'JetBrains Mono', monospace; font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px; }
.adm-head .crumb a { color: var(--text-dim); text-decoration: none; }
.adm-head .crumb a:hover { color: var(--text); }
.adm-head p { color: var(--text-soft); margin: 6px 0 0; font-size: .9rem; max-width: 640px; }
.adm-head-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* Segmented control (range picker, org/user toggle) */
.seg { display: inline-flex; padding: 3px; gap: 2px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-1); }
.seg button { border: 0; background: none; color: var(--text-soft); font: 600 12px var(--body); padding: 6px 12px; border-radius: 7px; cursor: pointer; font-variant-numeric: tabular-nums; }
.seg button:hover { color: var(--text); }
.seg button.on { background: var(--accent); color: #fff; }

/* Cards + grids */
.adm-grid { display: grid; gap: 16px; grid-template-columns: repeat(12, minmax(0, 1fr)); margin-bottom: 16px; }
.adm-card { grid-column: span 12; background: var(--surface-1); border: 1px solid var(--line); border-radius: 14px; padding: 18px 18px 14px; min-width: 0; }
.adm-card.span-8 { grid-column: span 8; }
.adm-card.span-6 { grid-column: span 6; }
.adm-card.span-4 { grid-column: span 4; }
@media (max-width: 1100px) { .adm-card.span-8, .adm-card.span-6, .adm-card.span-4 { grid-column: span 12; } }
.adm-card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.adm-card-head h2 { margin: 0; font: 700 15px var(--body); color: var(--text); }
.adm-card-head .sub { color: var(--text-dim); font: 500 11.5px var(--body); }

/* KPI tiles */
.adm-tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 16px; }
.adm-tile { background: var(--surface-1); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.adm-tile .k { font: 600 10.5px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); }
.adm-tile .v { font: 700 26px var(--body); color: var(--text); margin-top: 6px; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.adm-tile .h { font-size: 11.5px; color: var(--text-dim); margin-top: 2px; font-variant-numeric: tabular-nums; }

/* States */
.adm-state { padding: 34px 18px; text-align: center; color: var(--text-dim); font-size: .88rem; border: 1px dashed var(--line); border-radius: 12px; background: var(--surface-1); }
.adm-state.error { border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); color: var(--danger); }
.adm-state .material-symbols-outlined, .adm-state i { display: block; font-size: 26px; margin: 0 auto 8px; opacity: .7; }
.adm-card .adm-state { border: 0; padding: 26px 10px; }
.adm-banner { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 12px; border: 1px solid color-mix(in srgb, var(--warning) 40%, var(--line)); background: color-mix(in srgb, var(--warning) 8%, var(--surface-1)); color: var(--text-soft); font-size: 13px; margin-bottom: 16px; }
.adm-banner b { color: var(--text); }
.adm-muted { color: var(--text-dim); }
.adm-pill { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font: 600 10.5px var(--body); border: 1px solid var(--line); color: var(--text-soft); background: var(--surface-2); white-space: nowrap; }
.adm-pill.warn { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 40%, transparent); background: color-mix(in srgb, var(--warning) 10%, transparent); }
.adm-pill.bad { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: color-mix(in srgb, var(--danger) 9%, transparent); }
.adm-pill.good { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); background: color-mix(in srgb, var(--green) 9%, transparent); }
.adm-pill.info { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: var(--accent-glow); }

/* Tables */
.adm-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-1); }
.adm-card .adm-table-wrap { border: 0; border-radius: 0; margin: 0 -18px; }
.adm-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
.adm-table th { text-align: left; padding: 10px 14px; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-dim); border-bottom: 1px solid var(--line); background: var(--surface-2); white-space: nowrap; }
.adm-table th.sortable { cursor: pointer; user-select: none; }
.adm-table th.sortable:hover { color: var(--text); }
.adm-table th.sorted { color: var(--accent); }
.adm-table td { padding: 10px 14px; border-bottom: 1px solid var(--line-soft); color: var(--text); vertical-align: middle; }
.adm-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.adm-table tbody tr.clickable { cursor: pointer; }
.adm-table tbody tr.clickable:hover td, .adm-table tbody tr.open td { background: var(--surface-hover); }
.adm-table tfoot td { font-weight: 700; background: var(--surface-2); border-top: 1px solid var(--line); border-bottom: 0; }
.adm-table td .name { font-weight: 600; }
.adm-table td .meta { color: var(--text-dim); font: 11px var(--mono); margin-top: 2px; }
.adm-table tr.drill td { background: var(--bg); padding: 16px 18px; }
.neg { color: var(--danger); }
.pos { color: var(--green); }

/* Form controls */
.adm-input, .adm-select, .adm-textarea { width: 100%; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 9px; background: var(--surface-1); color: var(--text); font: 13px var(--body); }
.adm-textarea { min-height: 90px; resize: vertical; line-height: 1.45; }
.adm-textarea.code { font: 12px var(--mono); min-height: 140px; }
.adm-input:focus, .adm-select:focus, .adm-textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.adm-field { display: grid; gap: 6px; margin-bottom: 14px; }
.adm-field > span, .adm-label { font: 600 11.5px var(--body); color: var(--text-soft); }
.adm-field .hint { font-size: 11.5px; color: var(--text-dim); line-height: 1.4; }
.adm-row { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) { .adm-row { grid-template-columns: 1fr; } }
.adm-checks { display: flex; flex-wrap: wrap; gap: 6px; }
.adm-check { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; font: 600 12px var(--body); color: var(--text-soft); cursor: pointer; background: var(--surface-1); user-select: none; }
.adm-check input { margin: 0; accent-color: var(--accent); }
.adm-check:has(input:checked) { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }

/* Drawer */
.adm-drawer-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(13,17,23,.35); }
.adm-drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(560px, 96vw); z-index: 1001; background: var(--surface-1); border-left: 1px solid var(--line); box-shadow: var(--shadow-pop); display: flex; flex-direction: column; }
.adm-drawer header { display: flex; align-items: center; gap: 10px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.adm-drawer header h2 { flex: 1; margin: 0; font: 700 18px var(--display); color: var(--text); }
.adm-drawer .body { padding: 18px 20px; overflow: auto; flex: 1; color: var(--text-soft); font-size: 13px; }
.adm-drawer .close { width: 32px; height: 32px; border: 0; border-radius: 8px; background: none; color: var(--text-soft); cursor: pointer; font-size: 18px; }
.adm-drawer .close:hover { background: var(--surface-hover); color: var(--text); }
.adm-kv { display: grid; grid-template-columns: 130px 1fr; gap: 8px 12px; margin-bottom: 16px; }
.adm-kv dt { color: var(--text-dim); font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.adm-kv dd { margin: 0; color: var(--text); word-break: break-word; }

/* ── Charts ───────────────────────────────────────────── */
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; overflow: visible; font-family: var(--body); }
.chart .grid line { stroke: var(--chart-grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart .axis text { fill: var(--chart-axis); font-size: 10.5px; font-variant-numeric: tabular-nums; }
.chart .axis line.base { stroke: var(--line-strong); }
/* Series color classes (charts, legends, tooltips, split bars). */
.cs1 { --c: var(--chart-1); } .cs2 { --c: var(--chart-2); } .cs3 { --c: var(--chart-3); }
.cs4 { --c: var(--chart-4); } .cs5 { --c: var(--chart-5); } .cs6 { --c: var(--chart-6); }
.chart path.line { fill: none; stroke: var(--c); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart path.area { fill: var(--c); fill-opacity: .22; stroke: none; }
.chart path.area.stacked { fill-opacity: .55; }
.chart rect.bar { fill: var(--c); rx: 2px; }
.chart rect.bar.dim { fill-opacity: .45; }
.chart rect.derived { fill: var(--text-dim); fill-opacity: .07; }
.chart text.derived-label { fill: var(--text-dim); font-size: 10px; font-style: italic; }
.chart line.hover-line { stroke: var(--line-strong); stroke-dasharray: 3 3; }
.chart circle.dot { fill: var(--surface-1); stroke: var(--c); stroke-width: 2; }
.chart .hit { fill: transparent; cursor: crosshair; }
.chart-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; font-size: 11.5px; color: var(--text-soft); }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend i { width: 10px; height: 10px; border-radius: 3px; background: var(--c); display: inline-block; }
.chart-legend .derived-key i { background: var(--text-dim); opacity: .25; }
.chart-tip { position: fixed; z-index: 1300; pointer-events: none; min-width: 120px; max-width: 280px; padding: 8px 10px; border-radius: 9px; background: var(--surface-1); color: var(--text); border: 1px solid var(--line-strong); box-shadow: var(--shadow-pop); font-size: 12px; font-variant-numeric: tabular-nums; opacity: 0; transition: opacity .08s; }
.chart-tip.on { opacity: 1; }
.chart-tip .t { font: 600 11px var(--mono); color: var(--text-dim); margin-bottom: 4px; }
.chart-tip .r { display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.chart-tip .r span { display: inline-flex; align-items: center; gap: 6px; color: var(--text-soft); }
.chart-tip .r i { width: 8px; height: 8px; border-radius: 2px; background: var(--c); display: inline-block; }
.chart-tip .r b { color: var(--text); font-weight: 600; }
.chart-tip .note { margin-top: 4px; font-size: 10.5px; color: var(--text-dim); font-style: italic; }
svg.spark { display: inline-block; vertical-align: middle; overflow: visible; }
svg.spark path { fill: none; stroke: var(--chart-1); stroke-width: 1.5; stroke-linejoin: round; }
svg.spark path.fill { fill: var(--chart-1); fill-opacity: .14; stroke: none; }

/* Horizontal split bar (platform split) */
.splitbar { display: flex; height: 14px; border-radius: 7px; overflow: hidden; background: var(--surface-2); }
.splitbar > div { background: var(--c); min-width: 2px; }
.split-rows { display: grid; gap: 8px; margin-top: 14px; }
.split-row { display: grid; grid-template-columns: 14px 1fr auto auto; gap: 8px; align-items: center; font-size: 13px; color: var(--text-soft); font-variant-numeric: tabular-nums; }
.split-row i { width: 10px; height: 10px; border-radius: 3px; background: var(--c); }
.split-row b { color: var(--text); }

/* Funnel */
.funnel { display: grid; gap: 8px; }
.funnel-step { display: grid; grid-template-columns: minmax(140px, 220px) 1fr 110px; gap: 12px; align-items: center; font-size: 13px; }
.funnel-step .lbl { color: var(--text); }
.funnel-step .track { height: 26px; border-radius: 6px; background: var(--surface-2); overflow: hidden; }
.funnel-step .fill { height: 100%; background: var(--chart-1); border-radius: 6px; }
.funnel-step .n { text-align: right; font-variant-numeric: tabular-nums; color: var(--text); }
.funnel-step .n small { color: var(--text-dim); margin-left: 6px; }
.funnel-step .drop { grid-column: 2 / 4; margin: -4px 0 0; font-size: 11px; color: var(--text-dim); }

/* Retention heatmap */
.heat { border-collapse: separate; border-spacing: 3px; font-size: 11.5px; font-variant-numeric: tabular-nums; }
.heat th { font: 600 10px var(--mono); color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; padding: 2px 6px; text-align: center; white-space: nowrap; }
.heat th.row { text-align: left; }
.heat td { min-width: 44px; height: 30px; text-align: center; border-radius: 5px; color: var(--text); }
.heat td.lbl { text-align: left; color: var(--text-soft); white-space: nowrap; padding-right: 10px; }
.heat td.size { color: var(--text-dim); padding-right: 10px; }
.heat td.na { background: transparent; color: var(--text-dim); }
.heat td.cell { cursor: default; }
.heat td.cell.hi { color: #fff; }
.adm-card .adm-table-wrap.inner, .adm-table-wrap.inner { margin: 0; border: 1px solid var(--line); border-radius: 10px; }
:root[data-theme="dark"] .neg, :root[data-theme="dark"] .adm-pill.bad, :root[data-theme="dark"] .adm-state.error { color: #f87171; }
:root[data-theme="dark"] .adm-pill.warn { color: #f0b45a; }
:root[data-theme="dark"] .pos, :root[data-theme="dark"] .adm-pill.good { color: #4ade80; }