/* ==========================================================================
   app.css — Learning Analytics prototype theme (on top of Bootstrap 5.3)
   Layout: fixed left sidebar + topbar + scope bar; content in panels on a
   cool grey ground. Orange accent nods to Moodle; teal carries data.
   ========================================================================== */
:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-2: #eef1f4;
  --ink: #18222c;
  --muted: #5a6876;
  --line: #dde3e9;
  --grid: #e6eaef;
  --accent: #d9661a;
  --accent-ink: #ffffff;
  --accent-soft: #fbeadd;
  --side: #17232e;
  --side-ink: #c9d3dc;
  --side-muted: #7f8f9e;
  --side-active: #243443;
  --good: #2f8a5b;
  --warn: #b7800a;
  --crit: #c2413b;
  --info: #2b6f99;
  --good-soft: #e3f3ea;
  --warn-soft: #fbf0d6;
  --crit-soft: #f9e2e0;
  --info-soft: #e1eef6;
  --c1: #1f6f8b;
  --c2: #d9661a;
  --c3: #6b8f3c;
  --c4: #8a5aa8;
  --c5: #c2413b;
  --c6: #9aa7b3;
  --tooltip-bg: #18222c;
  --tooltip-fg: #f3f5f7;
  --font-ui: "Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: "Bricolage Grotesque", "Public Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --radius: 10px;
  --sidebar-w: 248px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f151b; --surface: #161f28; --surface-2: #1d2833; --ink: #e5ebf0; --muted: #94a3b1;
    --line: #26323e; --grid: #222d38; --accent: #ef8742; --accent-ink: #1a0f06; --accent-soft: #3a2616;
    --side: #0b1116; --side-ink: #c4ced7; --side-muted: #708191; --side-active: #1a2531;
    --good: #4fb882; --warn: #e0a83a; --crit: #eb6a62; --info: #5aa7d2;
    --good-soft: #15302a; --warn-soft: #33290f; --crit-soft: #3a1c1b; --info-soft: #13293a;
    --c1: #4fa8c7; --c2: #ef8742; --c3: #93b85f; --c4: #b08ad0; --c5: #eb6a62; --c6: #6c7c8b;
    --tooltip-bg: #e5ebf0; --tooltip-fg: #0f151b;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f151b; --surface: #161f28; --surface-2: #1d2833; --ink: #e5ebf0; --muted: #94a3b1;
  --line: #26323e; --grid: #222d38; --accent: #ef8742; --accent-ink: #1a0f06; --accent-soft: #3a2616;
  --side: #0b1116; --side-ink: #c4ced7; --side-muted: #708191; --side-active: #1a2531;
  --good: #4fb882; --warn: #e0a83a; --crit: #eb6a62; --info: #5aa7d2;
  --good-soft: #15302a; --warn-soft: #33290f; --crit-soft: #3a1c1b; --info-soft: #13293a;
  --c1: #4fa8c7; --c2: #ef8742; --c3: #93b85f; --c4: #b08ad0; --c5: #eb6a62; --c6: #6c7c8b;
  --tooltip-bg: #e5ebf0; --tooltip-fg: #0f151b;
  color-scheme: dark;
}

/* ---------- Bootstrap bridge ---------- */
:root, [data-bs-theme] {
  --bs-body-bg: var(--bg); --bs-body-color: var(--ink); --bs-border-color: var(--line);
  --bs-secondary-color: var(--muted); --bs-emphasis-color: var(--ink);
  --bs-body-font-family: var(--font-ui); --bs-link-color: var(--c1); --bs-link-hover-color: var(--accent);
  --bs-link-color-rgb: 31, 111, 139; --bs-tertiary-bg: var(--surface-2); --bs-secondary-bg: var(--surface-2);
}
body { background: var(--bg); color: var(--ink); font-family: var(--font-ui); font-size: 14px; -webkit-font-smoothing: antialiased; }
a { color: var(--c1); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
.text-muted, .small.text-muted { color: var(--muted) !important; }
code { color: var(--c1); font-family: var(--font-mono); font-size: 0.86em; }
.mono { font-family: var(--font-mono); }
.num, .kpi-value, .meter-val, td.text-end { font-variant-numeric: tabular-nums; }
.min-w-0 { min-width: 0; }
h1, h2, h3 { text-wrap: balance; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 2000; background: var(--accent); color: var(--accent-ink); padding: 6px 10px; border-radius: 6px; }
.skip-link:focus { left: 8px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---------- shell ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w); background: var(--side); color: var(--side-ink);
  position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column;
  padding-block: 18px 14px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 18px 18px; border-bottom: 1px solid rgba(255,255,255,.06); margin-bottom: 10px; }
.brand-mark { width: 36px; height: 36px; border-radius: 9px; background: var(--accent); display: grid; place-items: center; }
.brand-mark svg { fill: #fff; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 16px; color: #fff; letter-spacing: -0.01em; }
.brand-sub { font-size: 11.5px; color: var(--side-muted); }
.nav-group { padding: 8px 10px 4px; }
.nav-group-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .09em; color: var(--side-muted); padding: 6px 10px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; color: var(--side-ink); text-decoration: none; font-weight: 500; }
.nav-item i { font-size: 16px; width: 18px; text-align: center; color: var(--side-muted); }
.nav-item:hover { background: var(--side-active); color: #fff; }
.nav-item.active { background: var(--side-active); color: #fff; }
.nav-item.active i { color: var(--accent); }
.sidebar-foot { margin-top: auto; padding: 14px 20px 0; color: var(--side-muted); font-size: 11.5px; display: grid; gap: 2px; }
.sidebar-scrim { display: none; }

.main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 1020; background: var(--surface); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 12px; min-height: 58px;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 8px;
}
.crumbs { min-width: 0; flex: 1 1 auto; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; font-size: 13px; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 4px; color: var(--line); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs [aria-current] { color: var(--ink); font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.term-chip { align-items: center; gap: 6px; font-size: 12px; color: var(--muted); background: var(--surface-2); padding: 5px 10px; border-radius: 999px; white-space: nowrap; }
.icon-btn { width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); display: inline-grid; place-items: center; }
.icon-btn:hover { border-color: var(--accent); }
.role-switch { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 999px; padding: 3px 10px 3px 3px; }
.role-switch:hover { border-color: var(--accent); }
.role-switch-text { flex-direction: column; align-items: flex-start; line-height: 1.15; }
.role-switch-text strong { font-size: 13px; }
.role-switch-text span { font-size: 11.5px; color: var(--muted); }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: inline-grid; place-items: center; font-weight: 700; font-size: 12px; flex: 0 0 auto; }
.avatar.sm { width: 28px; height: 28px; font-size: 11px; }
.role-menu { min-width: 300px; padding: 6px; }
.role-option { display: flex; align-items: center; gap: 10px; border-radius: 8px; padding: 7px 8px; }
.role-option-text { display: flex; flex-direction: column; line-height: 1.2; flex: 1; }
.role-option-text span { font-size: 12px; color: var(--muted); }
.role-option.active, .role-option:active { background: var(--accent-soft); color: var(--ink); }
.role-code { font-size: 11px; color: var(--muted); }
.dropdown-menu { --bs-dropdown-bg: var(--surface); --bs-dropdown-border-color: var(--line); --bs-dropdown-link-color: var(--ink); --bs-dropdown-link-hover-bg: var(--surface-2); --bs-dropdown-link-active-bg: var(--accent-soft); --bs-dropdown-link-active-color: var(--ink); box-shadow: 0 10px 30px rgba(10, 20, 30, .14); }

.scopebar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  background: var(--surface-2); border-bottom: 1px solid var(--line); font-size: 12.5px;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 7px;
}
.scope-left, .scope-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; }
.scope-role { background: var(--ink); color: var(--bg); border-radius: 5px; padding: 1px 6px; font-size: 11px; }
.scope-text { color: var(--muted); }
.scope-text strong { color: var(--ink); }

.content {
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 22px 48px;
  display: grid; gap: 18px; align-content: start; max-width: 1480px; width: 100%;
}
.content:focus { outline: none; }

/* ---------- page head ---------- */
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.page-head h1 { font-family: var(--font-display); font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; letter-spacing: -0.02em; margin: 2px 0 4px; }
.lede { color: var(--muted); margin: 0; max-width: 70ch; }
.eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 600; margin: 0; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- buttons ---------- */
.btn { --bs-btn-font-weight: 500; border-radius: 8px; }
.btn-accent { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.btn-accent:hover, .btn-accent:focus { background: color-mix(in srgb, var(--accent) 88%, #000); color: var(--accent-ink); border-color: transparent; }
.btn-quiet { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.btn-quiet:hover { border-color: var(--accent); color: var(--ink); background: var(--surface); }
.btn-quiet:disabled { opacity: .55; }

/* ---------- KPI tiles ---------- */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; color: var(--ink); text-decoration: none; display: grid; gap: 4px; position: relative; }
a.kpi:hover { border-color: var(--accent); color: var(--ink); }
.kpi-label { font-size: 12px; color: var(--muted); font-weight: 500; }
.kpi-value { font-family: var(--font-display); font-size: 26px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
.kpi-value small { font-size: 14px; font-weight: 600; color: var(--muted); margin-left: 2px; }
.kpi-sub { font-size: 12px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.kpi-good .kpi-value { color: var(--good); }
.kpi-warn .kpi-value { color: var(--warn); }
.kpi-crit .kpi-value { color: var(--crit); }
.kpi-crit { border-color: color-mix(in srgb, var(--crit) 35%, var(--line)); }
.trend { display: inline-flex; align-items: center; gap: 2px; font-weight: 600; }
.trend.good { color: var(--good); }
.trend.bad { color: var(--crit); }

/* ---------- panels & grid ---------- */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); min-width: 0; }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 14px 16px 0; flex-wrap: wrap; }
.panel-head h2 { font-size: 15px; font-weight: 700; margin: 0; }
.panel-head p { font-size: 12.5px; color: var(--muted); margin: 2px 0 0; }
.panel-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.panel-body { padding: 14px 16px 16px; min-width: 0; }
.grid { display: grid; gap: 18px; }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-21 { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.g-12 { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
@media (max-width: 1100px) { .g-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 900px) { .g-2, .g-3, .g-21, .g-12 { grid-template-columns: minmax(0, 1fr); } }
.chart-box { position: relative; width: 100%; }

.ai-card { background: linear-gradient(0deg, var(--surface), var(--surface)), var(--surface); border-color: color-mix(in srgb, var(--accent) 30%, var(--line)); }
.ai-card h2 i { color: var(--accent); }
.ai-list { margin: 0; padding-left: 18px; display: grid; gap: 6px; }
.ai-list li::marker { color: var(--accent); }

/* ---------- pills, chips, meters ---------- */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; white-space: nowrap; }
.pill-good { background: var(--good-soft); color: var(--good); }
.pill-warn { background: var(--warn-soft); color: var(--warn); }
.pill-crit { background: var(--crit-soft); color: var(--crit); }
.pill-info { background: var(--info-soft); color: var(--info); }
.pill-muted { background: var(--surface-2); color: var(--muted); }
.chip { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 6px; font-size: 12px; background: var(--surface); border: 1px solid var(--line); }
.chip-info { color: var(--info); border-color: color-mix(in srgb, var(--info) 35%, var(--line)); }
.meter { display: inline-flex; align-items: center; gap: 8px; min-width: 110px; }
.meter-track { flex: 1; height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; min-width: 50px; }
.meter-fill { display: block; height: 100%; border-radius: 3px; }
.fill-good { background: var(--good); } .fill-warn { background: var(--warn); } .fill-crit { background: var(--crit); } .fill-info { background: var(--c1); }
.meter-val { font-size: 12px; min-width: 34px; text-align: right; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-good { background: var(--good); } .dot-warn { background: var(--warn); } .dot-crit { background: var(--crit); }

/* ---------- sparklines ---------- */
.spark { display: block; overflow: visible; }
.spark-line { fill: none; stroke-width: 1.8; }
.spark-area { stroke: none; }
.spark-good .spark-line, .spark-good .spark-dot { stroke: var(--c1); fill: var(--c1); }
.spark-good .spark-line { fill: none; }
.spark-good .spark-area { fill: color-mix(in srgb, var(--c1) 16%, transparent); }
.spark-crit .spark-line { stroke: var(--crit); fill: none; }
.spark-crit .spark-dot { fill: var(--crit); stroke: none; }
.spark-crit .spark-area { fill: color-mix(in srgb, var(--crit) 14%, transparent); }
.spark-good .spark-dot { stroke: none; }

/* ---------- tables ---------- */
.tbl-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.tbl-spacer { flex: 1; }
.search { display: flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 8px; padding: 0 10px; background: var(--surface); height: 32px; }
.search i { color: var(--muted); }
.search input { border: 0; outline: 0; background: transparent; color: var(--ink); width: 180px; font-size: 13px; }
.tbl-filter { width: auto; max-width: 180px; background-color: var(--surface); border-color: var(--line); color: var(--ink); height: 32px; }
.table-scroll { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
.lad-table { --bs-table-bg: transparent; --bs-table-color: var(--ink); --bs-table-border-color: var(--line); --bs-table-hover-bg: var(--surface-2); margin: 0; font-size: 13px; min-width: 640px; }
.lad-table thead th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; border-bottom-width: 1px; white-space: nowrap; background: transparent; }
.lad-table td { border-color: var(--line); }
.th-sort { all: unset; cursor: pointer; display: inline-flex; align-items: center; gap: 3px; }
.th-sort:focus-visible { outline: 2px solid var(--accent); }
.th-sort i { font-size: 10px; opacity: .6; }
.row-link { cursor: pointer; }
.row-link:hover td { background: var(--surface-2); }
.row-link:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.col-check { width: 32px; }
.empty { text-align: center; color: var(--muted); padding: 28px !important; }
.tbl-pager { display: flex; align-items: center; justify-content: flex-end; gap: 8px; margin-top: 10px; color: var(--muted); }
.cell-main { font-weight: 600; color: var(--ink); }
.cell-sub { font-size: 12px; color: var(--muted); }
.lock { color: var(--muted); }

/* ---------- tabs ---------- */
.tabbar { display: flex; gap: 2px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tab { all: unset; cursor: pointer; padding: 10px 14px; font-weight: 600; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tab:hover { color: var(--ink); }
.tab:focus-visible { outline: 2px solid var(--accent); }
.tab-pane-host { display: grid; gap: 18px; padding-top: 18px; }

/* ---------- heatmap ---------- */
.hm-wrap { overflow-x: auto; }
.heatmap { display: grid; grid-template-columns: 34px repeat(24, minmax(14px, 1fr)); gap: 3px; min-width: 470px; }
.hm-cell { aspect-ratio: 1; max-width: 100%; border-radius: 3px; background: color-mix(in oklab, var(--c1) var(--p), var(--surface-2)); }
.hm-day, .hm-hour { font-size: 10.5px; color: var(--muted); display: flex; align-items: center; }
.hm-hour { justify-content: center; }
.hm-legend { display: flex; align-items: center; gap: 6px; justify-content: flex-end; font-size: 11px; color: var(--muted); margin-top: 8px; }
.hm-scale { width: 90px; height: 8px; border-radius: 4px; background: linear-gradient(90deg, var(--surface-2), var(--c1)); }

/* ---------- lists & misc ---------- */
.stat-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.stat-list li { display: flex; justify-content: space-between; gap: 12px; align-items: center; border-bottom: 1px dashed var(--line); padding-bottom: 8px; }
.stat-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.stat-list .v { font-weight: 700; font-variant-numeric: tabular-nums; }
.attention { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.attention li { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: 8px; background: var(--surface-2); }
.attention li i { margin-top: 2px; }
.attention .sev-crit i { color: var(--crit); } .attention .sev-warn i { color: var(--warn); } .attention .sev-info i { color: var(--info); }
.attention a { font-weight: 600; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.course-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: grid; gap: 10px; color: var(--ink); text-decoration: none; }
.course-card:hover { border-color: var(--accent); color: var(--ink); }
.course-card .code { font-family: var(--font-mono); font-size: 12px; color: var(--accent); font-weight: 600; }
.course-card h3 { font-size: 16px; margin: 0; font-weight: 700; }
.cc-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.cc-stats div { display: grid; }
.cc-stats strong { font-size: 18px; font-variant-numeric: tabular-nums; font-family: var(--font-display); }
.cc-stats span { font-size: 11.5px; color: var(--muted); }
.legend-inline { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.legend-inline span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.note { font-size: 12.5px; color: var(--muted); display: flex; gap: 8px; align-items: flex-start; }
.note i { color: var(--info); margin-top: 1px; }
.banner { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.banner-warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 30%, var(--line)); }
.banner-info { background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 30%, var(--line)); }
.banner-crit { background: var(--crit-soft); border-color: color-mix(in srgb, var(--crit) 30%, var(--line)); }
.banner i { font-size: 18px; }
.banner-warn i { color: var(--warn); } .banner-info i { color: var(--info); } .banner-crit i { color: var(--crit); }

/* ---------- question drill ---------- */
.qtext { font-size: 16px; font-weight: 600; line-height: 1.45; margin: 0 0 10px; }
.opt-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.opt-table td, .opt-table th { padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.opt-table th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
.opt-key { color: var(--good); font-weight: 700; }
.opt-intended { color: var(--warn); font-weight: 700; }
.bars2 { display: grid; gap: 3px; min-width: 160px; }
.bars2 .b { height: 7px; border-radius: 3px; }
.b-top { background: var(--c1); } .b-bot { background: var(--c2); } .b-all { background: var(--c6); }

/* ---------- timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 15px; top: 4px; bottom: 4px; width: 2px; background: var(--line); }
.timeline li { position: relative; display: grid; grid-template-columns: 32px 1fr; gap: 10px; padding: 6px 0; }
.tl-icon { width: 32px; height: 32px; border-radius: 50%; background: var(--surface); border: 2px solid var(--line); display: grid; place-items: center; z-index: 1; font-size: 13px; color: var(--muted); }
.tl-assessment .tl-icon { border-color: var(--c2); color: var(--c2); }
.tl-social .tl-icon { border-color: var(--c3); color: var(--c3); }
.tl-login .tl-icon { border-color: var(--c4); color: var(--c4); }
.tl-view .tl-icon { border-color: var(--c1); color: var(--c1); }
.tl-day { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; padding: 10px 0 2px 42px; }
.tl-meta { font-size: 12px; color: var(--muted); }

/* ---------- network graph ---------- */
.net svg { width: 100%; height: auto; display: block; }
.net line { stroke: var(--line); stroke-width: 1; }
.net circle { stroke: var(--surface); stroke-width: 1.5; }
.net .n-lect { fill: var(--accent); }
.net .n-stu { fill: var(--c1); }
.net .n-iso { fill: var(--crit); }
.net text { font-size: 9px; fill: var(--muted); font-family: var(--font-ui); }

/* ---------- map ---------- */
.map { height: 460px; border-radius: 8px; border: 1px solid var(--line); z-index: 0; }
.leaflet-container { background: var(--surface-2); font-family: var(--font-ui); }
.leaflet-popup-content-wrapper, .leaflet-popup-tip { background: var(--surface); color: var(--ink); }
:root[data-bs-theme="dark"] .leaflet-tile-pane { filter: invert(1) hue-rotate(180deg) brightness(.85) contrast(.9); }

/* ---------- permissions & denied ---------- */
.offcanvas { --bs-offcanvas-bg: var(--surface); --bs-offcanvas-color: var(--ink); --bs-offcanvas-width: 420px; }
.perm-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.perm { display: grid; grid-template-columns: 20px 1fr; gap: 8px; align-items: start; }
.perm code { display: block; font-size: 12px; }
.perm small { display: block; color: var(--muted); font-size: 11.5px; }
.perm.on i { color: var(--good); }
.perm.off { opacity: .6; }
.perm.off i { color: var(--muted); }
.perm.off code { color: var(--muted); text-decoration: line-through; }
.denied { text-align: center; max-width: 560px; margin: 8vh auto; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 36px 28px; }
.denied h1 { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin: 12px 0 6px; }
.denied-icon { width: 56px; height: 56px; border-radius: 50%; background: var(--crit-soft); color: var(--crit); display: grid; place-items: center; font-size: 24px; margin: 0 auto; }

/* ---------- modal / toast ---------- */
.modal { --bs-modal-bg: var(--surface); --bs-modal-color: var(--ink); --bs-modal-border-color: var(--line); }
.form-control, .form-select { background-color: var(--surface); border-color: var(--line); color: var(--ink); }
.form-control:focus, .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background-color: var(--surface); color: var(--ink); }
.form-check-input:checked { background-color: var(--accent); border-color: var(--accent); }
.lad-toast { background: var(--surface); color: var(--ink); border: 1px solid var(--line); box-shadow: 0 10px 30px rgba(10, 20, 30, .18); }
.toast-good i.bi-check-circle { color: var(--good); }
.toast-warn i { color: var(--warn); }
.tooltip { --bs-tooltip-bg: var(--tooltip-bg); --bs-tooltip-color: var(--tooltip-fg); --bs-tooltip-max-width: 280px; }

/* ---------- responsive shell ---------- */
@media (max-width: 991.98px) {
  .sidebar { position: fixed; left: 0; top: 0; z-index: 1050; transform: translateX(-100%); transition: transform .2s ease; padding-top: calc(18px + env(safe-area-inset-top, 0px)); padding-left: env(safe-area-inset-left, 0px); }
  .sidebar.open { transform: none; }
  .sidebar-scrim.show { display: block; position: fixed; inset: 0; background: rgba(5, 10, 15, .45); z-index: 1040; }
}
@media (max-width: 575.98px) {
  .kpi-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi-value { font-size: 22px; }
  .search input { width: 120px; }
  .role-menu { min-width: 260px; }
}

/* ---------- account menu ---------- */
.user-card { display: flex; gap: 10px; align-items: center; padding: 8px 10px 4px; }
.user-card .role-option-text span { font-size: 12px; color: var(--muted); }

/* ---------- login ---------- */
.login-body { background: var(--bg); }
.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr); }
.login-aside { background: var(--side); color: var(--side-ink); display: flex; flex-direction: column; gap: 32px; padding-block: 32px; padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: 32px; }
.login-aside .brand { border: 0; padding: 0; margin: 0; }
.login-pitch { margin-top: auto; max-width: 440px; }
.login-pitch h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(26px, 3vw, 36px); line-height: 1.12; letter-spacing: -0.02em; color: #fff; margin-bottom: 22px; }
.login-pitch ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.login-pitch li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; line-height: 1.45; }
.login-pitch li i { color: var(--accent); font-size: 17px; }
.login-foot { margin: auto 0 0; font-size: 12px; color: var(--side-muted); }
.login-main { display: grid; place-items: center; padding-block: 32px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.login-card { width: 100%; max-width: 520px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 28px; }
.login-card h2 { font-family: var(--font-display); font-weight: 700; font-size: 26px; margin: 0 0 4px; }
.login-error { color: var(--crit); background: var(--crit-soft); border-radius: 8px; padding: 8px 10px; }
.persona-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.persona { all: unset; box-sizing: border-box; cursor: pointer; display: flex; gap: 10px; align-items: center; padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); min-width: 0; }
.persona:hover { border-color: var(--accent); background: var(--surface-2); }
.persona:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.persona-text { display: grid; line-height: 1.25; min-width: 0; }
.persona-text strong { font-size: 13px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.persona-text span { font-size: 11.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 860px) {
  .login-shell { grid-template-columns: 1fr; }
  .login-aside { gap: 16px; padding-block: 22px; }
  .login-pitch { margin-top: 0; }
  .login-pitch h1 { font-size: 22px; margin-bottom: 12px; }
  .login-pitch ul, .login-foot { display: none; }
}
@media (max-width: 440px) { .persona-grid { grid-template-columns: 1fr; } .login-card { padding: 20px; } }