:root {
  --calvex-purple-light: #c8b8e2;
  --calvex-purple-mid: #CEA9EA;
  --calvex-purple-hover: #B08FD4;
  --calvex-purple-active: #8E6FB0;
  --calvex-purple-deep: #6b558e;
  --calvex-purple-border: rgba(107, 85, 142, 0.35);
  --calvex-border: #e5e7eb;
  --calvex-muted: #6b7280;
  --calvex-font: "Plus Jakarta Sans", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: var(--calvex-font);
  background: #fff;
  color: #111;
}

body {
  display: flex;
  flex-direction: column;
}

input[type="checkbox"] { accent-color: var(--calvex-purple-active); }
input[type="range"] { accent-color: var(--calvex-purple-deep); }

/* ---- header ---- */
.calvex-header {
  background-color: var(--calvex-purple-light);
  border-bottom: 1px solid var(--calvex-purple-border);
  padding: 0.4rem 1.1rem;
  flex-shrink: 0;
}
.calvex-app-title-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: #000;
  font-weight: 800;
  font-size: 1.3rem;
  cursor: pointer;
}
.calvex-app-title-link:hover { opacity: 0.85; }
.calvex-logo { height: 3.575rem; width: auto; display: block; }

/* ---- top control bar ---- */
.calvex-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.8rem 1.35rem;
  padding: 0.8rem 1.25rem;
  background: var(--calvex-purple-light);
  border-bottom: 1px solid var(--calvex-purple-border);
  flex-shrink: 0;
}
.calvex-control { display: flex; flex-direction: column; }
.calvex-control label {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  color: #000;
  font-weight: 700;
  margin-bottom: 0.4rem;
  white-space: nowrap;
}
.calvex-control select {
  font-family: var(--calvex-font);
  font-size: 0.875rem;
  padding: 0.42rem 0.55rem;
  border: 1px solid #cfc4e2;
  border-radius: 0.375rem;
  background: #fff;
  min-width: 130px;
  max-width: 240px;
}
.calvex-control-divided {
  border-left: 1px solid var(--calvex-purple-border);
  padding-left: 1.35rem;
}
.calvex-control-slider { flex: 1 1 220px; min-width: 190px; margin-left: auto; }
.calvex-control-slider input[type="range"] { width: 100%; margin: 0.55rem 0 0.3rem; }
#scale_max_value {
  text-transform: none;
  letter-spacing: 0;
  color: var(--calvex-purple-deep);
}

/* ---- collapse toggles (topbar + sidebar) ---- */
.calvex-bar-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  background: var(--calvex-purple-light);
  border: none;
  border-bottom: 1px solid var(--calvex-purple-border);
  padding: 0.5rem 1rem;
  font-family: var(--calvex-font);
  font-weight: 600;
  font-size: 0.85rem;
  color: #000;
  cursor: pointer;
  flex-shrink: 0;
}
.calvex-bar-toggle:hover { background: #DDD0EF; }
.calvex-bar-toggle .caret { transition: transform 0.15s ease; }
.calvex-bar-toggle.closed .caret { transform: rotate(-90deg); }
.calvex-topbar.collapsed { display: none; }

/* ---- layout: sidebar + main ---- */
.calvex-body {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}
.calvex-sidebar-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 285px;
  flex-shrink: 0;
  background-color: var(--calvex-purple-light);
  border-right: 1px solid var(--calvex-purple-border);
}
.calvex-sidebar-wrap.collapsed { width: auto; }
.calvex-sidebar-wrap.collapsed .calvex-sidebar { display: none; }
.calvex-sidebar-wrap.collapsed .calvex-bar-toggle { border-bottom: none; }
.calvex-sidebar {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 0.75rem 0.8rem 1rem;
}
.calvex-sidebar-checks { padding: 0.15rem 0.15rem 0.65rem; }
.calvex-check {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  cursor: pointer;
}

/* accordion via <details> */
.calvex-acc {
  border: 1px solid var(--calvex-purple-border);
  border-radius: 0.375rem;
  margin-bottom: 0.5rem;
  overflow: hidden;
  background-color: var(--calvex-purple-light);
}
.calvex-acc summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.7rem 0.9rem;
  user-select: none;
}
.calvex-acc summary::-webkit-details-marker { display: none; }
.calvex-acc summary::after { content: " \25BE"; float: right; }
.calvex-acc[open] summary { background-color: var(--calvex-purple-mid); }
.calvex-acc[open] summary::after { content: " \25B4"; }
.calvex-acc summary:hover { background-color: #DDD0EF; }
.calvex-acc-body { padding: 0.25rem 0.9rem 0.9rem; }

/* filter groups */
.calvex-filter-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 1rem 0 0.35rem;
}
.calvex-filter-group:first-child .calvex-filter-head { margin-top: 0.6rem; }
.calvex-filter-label { font-weight: 600; font-size: 0.92rem; }
.calvex-filter-links a {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--calvex-purple-deep);
  text-decoration: none;
  margin-left: 0.6rem;
}
.calvex-filter-links a:hover { text-decoration: underline; }
.calvex-filter-group .calvex-check {
  font-size: 0.9rem;
  line-height: 1.45;
  margin-bottom: 0.35rem;
}
.calvex-filter-help {
  display: block;
  font-size: 0.78rem;
  color: #3f3a4d;
  margin-top: 0.45rem;
}

.calvex-notes-list {
  font-size: 0.85rem;
  padding-left: 1.1rem;
  color: #222;
  margin: 0.5rem 0 0;
}
.calvex-notes-list li { margin-bottom: 0.3rem; }

.calvex-cite {
  padding: 0.5rem 0.15rem;
  font-size: 0.75rem;
  color: #333;
  line-height: 1.5;
}
.calvex-cite a { color: var(--calvex-purple-deep); }
.calvex-credit {
  margin: 0.5rem 0 0;
  font-size: 0.72rem;
  color: var(--calvex-muted);
}

/* ---- main chart area ---- */
.calvex-main {
  flex: 1 1 auto;
  min-width: 0;
  overflow-y: auto;
  background: #fff;
  padding: 8px 10px 4px;
  display: flex;
  flex-direction: column;
}
.calvex-chart { width: 100%; }
.calvex-validation {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--calvex-muted);
  font-size: 1rem;
}
.calvex-footnotes {
  border-top: 1px solid #eef0f3;
  padding: 0.6rem 0.25rem 0.5rem;
}
.calvex-footnotes p {
  margin: 0.25rem 0;
  font-size: 0.78rem;
  line-height: 1.45;
  color: #6b7280;
}

/* ---- refine population: demographic-specifics filters, moved below the
   chart instead of the sidebar. Collapsed by default — reuses the same
   button+caret toggle as "Chart controls"/"Filters" rather than a new
   pattern, and the bordered-box look of .calvex-acc, so it reads as one
   more collapsible panel consistent with the rest of the page. ---- */
.calvex-refine {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
  border: 1px solid var(--calvex-purple-border);
  border-radius: 0.375rem;
  overflow: hidden;
  background-color: var(--calvex-purple-light);
}
.calvex-refine-toggle {
  border-bottom: 1px solid var(--calvex-purple-border);
}
.calvex-refine.collapsed .calvex-refine-toggle { border-bottom: none; }
.calvex-refine.collapsed .calvex-refine-body { display: none; }
.calvex-refine-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.15rem 0.75rem;
  text-align: left;
}
.calvex-refine-label {
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #000;
}
.calvex-refine-body { padding: 1.1rem 1rem 0.5rem; background: #fff; }
.calvex-refine-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-bottom: 1rem;
}
.calvex-refine-grid .calvex-filter-group {
  flex: 1 1 190px;
  max-width: 260px;
}
.calvex-refine-grid .calvex-filter-head,
.calvex-refine-grid .calvex-filter-group:first-child .calvex-filter-head {
  margin-top: 0;
}

/* ---- responsive ---- */
@media (max-width: 900px) {
  .calvex-control-divided { border-left: none; padding-left: 0; }
  .calvex-control-slider { margin-left: 0; }
  .calvex-control { flex: 1 1 calc(50% - 0.9rem); min-width: 0; }
  .calvex-control select { width: 100%; max-width: none; }
}
@media (max-width: 768px) {
  /* single natural page scroll: no nested scroll containers, so the chart
     always renders at full height and the page just scrolls past it */
  html, body { height: auto; }
  .calvex-body { flex-direction: column; flex: none; min-height: auto; }
  .calvex-sidebar-wrap {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--calvex-purple-border);
  }
  .calvex-sidebar { overflow-y: visible; }
  .calvex-main { overflow-y: visible; }
  .calvex-logo { height: 2.75rem; }
  .calvex-app-title-link { font-size: 1rem; }
  .calvex-refine-grid { gap: 1.25rem 1.5rem; }
  .calvex-refine-grid .calvex-filter-group { flex: 1 1 140px; }
}