:root {
  --bg: #ffffff;
  --surface: #fafafa;
  --border: #e5e5e5;
  --text: #0a0a0a;
  --text-dim: #6e6e6e;
  --accent: #2b2b2b;
  --accent-contrast: #ffffff;
  --info-bg: #f5f5f5;
  --info-border: #0a0a0a;

  --role-sensory_input: #2e7d32;
  --role-central_processing: #1565c0;
  --role-descending: #ef6c00;
  --role-vnc: #6a1b9a;
  --role-motor: #c62828;
  --role-other: #8a8a94;

  --stage-input: #2e7d32;
  --stage-processing: #1565c0;
  --stage-output: #c62828;
}

html[data-theme="dark"] {
  --bg: #0a0a0a;
  --surface: #151515;
  --border: #2a2a2a;
  --text: #f2f2f2;
  --text-dim: #9a9a9a;
  --accent: #f2f2f2;
  --accent-contrast: #0a0a0a;
  --info-bg: #151515;
  --info-border: #f2f2f2;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden; /* the whole point: each view fills the viewport, page itself never scrolls */
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  transition: background 0.15s, color 0.15s;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 8px;
  z-index: 10;
  background: var(--text);
  color: var(--bg);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 12.5px;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; }

/* ---------- header ---------- */

header {
  position: relative;
  flex: 0 0 auto;
  min-height: 76px;
  padding: 28px 24px 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: padding 0.2s ease, border-color 0.2s ease;
}

#header-body {
  max-height: 600px;
  overflow: hidden;
  opacity: 1;
  transition: max-height 0.2s ease, opacity 0.15s ease;
}

.logo-mini {
  /* top/left set by positionLogoMini() in app.js - centers across the
     combined header+nav rectangle, not just the header's own slice. */
  position: absolute;
  top: 7px;
  left: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 5px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  opacity: 0;
  transform: scale(0.85);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.logo-mini img {
  display: block;
  height: 70px; /* exactly half the main logo-chip img's 140px */
  width: 70px;
  border-radius: 10px;
}
html[data-header="collapsed"] .logo-mini {
  opacity: 1;
  transform: scale(1);
}

html[data-header="collapsed"] header {
  padding: 0 24px;
  border-bottom-color: transparent;
}
html[data-header="collapsed"] #header-body {
  max-height: 0;
  opacity: 0;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 8px;
  flex: 0 0 auto;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.logo-chip img {
  display: block;
  height: 140px;
  width: 140px;
  border-radius: 8px;
}

header .title-block h1 {
  font-size: 34px;
  font-weight: 300;
  letter-spacing: -0.015em;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.title-kicker {
  display: block;
  font-size: 15px;
  font-style: italic;
  font-weight: 400;
  color: var(--text-dim);
  letter-spacing: 0;
  margin-bottom: 2px;
}

.subtitle {
  font-size: 13.5px;
  color: var(--text-dim);
  margin: 6px 0 0 0;
  font-weight: 400;
}
.subtitle em { font-style: italic; }

#details-toggle {
  margin: 14px auto 0 auto;
  border: none;
  background: none;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 12px;
}
#details-toggle:hover { color: var(--text); background: var(--surface); }
#details-toggle svg { width: 11px; height: 11px; transition: transform 0.15s; }
#details-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }

#details-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease, margin 0.2s ease;
  margin-top: 0;
}
#details-panel.open {
  max-height: 160px;
  margin-top: 12px;
}
#details-panel { max-width: 720px; }

.prov-block a { color: var(--text-dim); text-decoration: underline; }
.prov-block a:hover { color: var(--text); }

.prov-block {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

.header-controls {
  position: absolute;
  top: 20px;
  right: 24px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

#theme-toggle, #header-toggle, #search-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
#theme-toggle svg, #search-toggle svg { width: 16px; height: 16px; }
#theme-toggle .icon-sun { display: none; }
#theme-toggle .icon-moon { display: block; }
html[data-theme="dark"] #theme-toggle .icon-sun { display: block; }
html[data-theme="dark"] #theme-toggle .icon-moon { display: none; }

#header-toggle svg { width: 13px; height: 13px; transition: transform 0.15s; transform: rotate(180deg); }
#header-toggle:hover { color: var(--text); }
html[data-header="collapsed"] #header-toggle svg { transform: none; }

/* ---------- nav ---------- */

nav {
  flex: 0 0 auto;
  display: flex;
  justify-content: flex-start;
  gap: 2px;
  padding: 10px 16px 0 16px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

/* Auto margins center tabs only when they fit; overflow stays scrollable
   from the first tab instead of extending beyond the left scroll origin. */
nav button:first-child { margin-left: auto; }
nav button:last-child { margin-right: auto; }

nav button {
  flex: 0 0 auto;
  border: none;
  background: none;
  padding: 8px 12px 10px 12px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-dim);
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  border-radius: 6px 6px 0 0;
}

nav button svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  stroke: currentColor;
}

nav button:hover { color: var(--text); background: var(--surface); }

nav button.active {
  color: var(--text);
  border-bottom-color: var(--text);
  font-weight: 600;
  background: var(--surface);
}

/* ---------- layout ---------- */
/* .fill grows to take leftover space in its view's flex column - how
   every tab fits the window with no page-level scroll. */

main {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 16px 24px;
  overflow: hidden;
}

.view { display: none; }
.view.active {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
}

.fill {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
}

#heatmap {
  /* Without a floor, a shrunk container (e.g. "Dataset details" left open,
     eating header height, on a short viewport) can hand Plotly a
     near-zero-height div on resize, which throws "axis scaling" instead
     of degrading gracefully - never let it get that small. */
  min-height: 220px;
}

.scrollable { overflow-y: auto; }

.controls {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  font-size: 12.5px;
  flex-wrap: wrap;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
}

.controls select, .controls input[type="text"], .controls input[type="number"] {
  font-size: 12.5px;
  padding: 4px 7px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}

.controls button {
  font-size: 12.5px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.controls button:hover { border-color: var(--text-dim); }

/* ---------- info / hint callouts ---------- */

.hint {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 8px;
  line-height: 1.55;
}

.info-box {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.55;
  background: var(--info-bg);
  border-left: 2px solid var(--info-border);
  padding: 9px 12px;
  margin-bottom: 10px;
  border-radius: 0 6px 6px 0;
}
.info-box svg { width: 13px; height: 13px; flex: 0 0 auto; margin-top: 2px; stroke: var(--text-dim); }
.info-box strong { color: var(--text); }

.info-disclosure {
  flex: 0 0 auto;
  margin: 8px 0;
  color: var(--text-dim);
  font-size: 12.5px;
}
.info-disclosure summary {
  width: fit-content;
  max-width: 100%;
  padding: 4px 0;
  cursor: pointer;
  border-radius: 4px;
}
.info-disclosure summary:hover { color: var(--text); }
.info-disclosure summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.info-disclosure .info-box {
  margin: 6px 0 0;
  max-height: min(200px, 25vh);
  overflow-y: auto;
}

/* ---------- Start Here (onboarding) ---------- */

.start-hero { text-align: center; max-width: 640px; margin: 4px auto 18px auto; flex: 0 0 auto; }
.start-hero h2 { font-size: 24px; font-weight: 500; margin: 0 0 8px 0; letter-spacing: -0.01em; }
.start-sub { font-size: 13.5px; color: var(--text-dim); line-height: 1.6; margin: 0; }

#start-flow-anim {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
  margin: 4px auto 10px auto;
  flex: 0 0 auto;
}
/* Same palette as IO_ROLE_COLORS in app.js (Anatomy tab) - this is what
   actually makes the scatter read as a fly: optic lobes/central brain/VNC
   need to stay visually distinct, not collapsed into one blob. */
.fly-dots .fp-optic { fill: #e67e22; opacity: 0.6; }
.fly-dots .fp-central { fill: #1565c0; opacity: 0.6; }
.fly-dots .fp-vnc { fill: #6a1b9a; opacity: 0.65; }
.fly-dots .fp-asc { fill: #00897b; opacity: 0.7; }
.fly-dots .fp-desc { fill: #ef6c00; opacity: 0.7; }
.fly-dots .fp-motor { fill: #c62828; opacity: 0.85; }
.fly-dots .fp-endo { fill: #ad1457; opacity: 0.85; }
.fly-dots .fp-oeff { fill: #795548; opacity: 0.85; }
.fly-dots .fp-input { fill: #2e7d32; opacity: 0.95; }
.fly-dots .fp-unknown { fill: #9e9e9e; opacity: 0.4; }
.flow-pulses .pulse-a { fill: #2e7d32; }
.flow-pulses .pulse-b { fill: #c62828; }
@media (prefers-reduced-motion: reduce) {
  #start-flow-anim animate { display: none; }
  .flow-pulses circle { opacity: 0; }
}

.start-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1040px;
  margin: 0 auto;
  flex: 0 0 auto;
}
.start-col h3 { font-size: 13.5px; margin: 0 0 8px 0; }
.start-col ul { margin: 0; padding-left: 18px; }
.start-col li { font-size: 12.5px; color: var(--text-dim); line-height: 1.6; margin-bottom: 8px; }
.start-col li strong { color: var(--text); }
.start-col a { color: var(--accent); text-decoration: underline; cursor: pointer; }
@media (max-width: 900px) {
  .start-grid { grid-template-columns: 1fr; }
}

/* ---------- pathway explorer ---------- */

#pathway-layout {
  display: flex;
  gap: 16px;
  min-height: 220px; /* the graph is the point of this view - never let it collapse to fit the rest */
}

#cy {
  flex: 1 1 auto;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

#detail-panel {
  width: 320px;
  flex: 0 0 320px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--surface);
  font-size: 13px;
  overflow-y: auto;
}

#detail-standalone-layout {
  display: flex;
  gap: 16px;
  min-height: 220px;
}

#detail-standalone {
  width: 320px;
  flex: 0 0 320px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--surface);
  font-size: 13px;
  overflow-y: auto;
}
#detail-standalone.placeholder { display: flex; align-items: center; justify-content: center; }

#detail-skeleton-wrap {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
#detail-skeleton-plot {
  flex: 1 1 auto;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
#detail-skeleton-hint { margin: 8px 0 0 0; flex: 0 0 auto; }

#paths-wrap {
  flex: 1 1 auto;
  min-height: 60px;
  margin-top: 12px;
  max-height: 190px;
  overflow-y: auto;
}
#paths-wrap h3 { font-size: 13px; margin: 0 0 6px 0; }

#detail-panel h3, #detail-standalone h3 {
  margin-top: 0;
  font-size: 14px;
}

#detail-panel dl, #detail-standalone dl { margin: 0; }
#detail-panel dt, #detail-standalone dt {
  font-weight: 600;
  color: var(--text-dim);
  margin-top: 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
#detail-panel dd, #detail-standalone dd { margin: 2px 0 0 0; }

/* ---------- legends ---------- */

.legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.legend .legend-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  margin-right: 2px;
  align-self: center;
}
.legend span.swatch {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 5px;
}
.legend > span { display: flex; align-items: center; }

.role-sensory_input .swatch, .dot-sensory_input { background: var(--role-sensory_input); }
.role-central_processing .swatch, .dot-central_processing { background: var(--role-central_processing); }
.role-descending .swatch, .dot-descending { background: var(--role-descending); }
.role-vnc .swatch, .dot-vnc { background: var(--role-vnc); }
.role-motor .swatch, .dot-motor { background: var(--role-motor); }
.role-other .swatch, .dot-other { background: var(--role-other); }

#category-legend-toggle, #coverage-panel-toggle {
  margin-left: auto;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 12px;
}
#category-legend-toggle:hover, #coverage-panel-toggle:hover { color: var(--text); }
#category-legend-toggle svg, #coverage-panel-toggle svg { width: 10px; height: 10px; transition: transform 0.15s; }
#category-legend-toggle[aria-expanded="true"] svg, #coverage-panel-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }


#category-legend-panel, #coverage-panel {
  flex: 0 0 auto;
  max-height: 0;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--surface);
  margin-bottom: 0;
  transition: max-height 0.2s ease, margin 0.2s ease;
}
#category-legend-panel.open, #coverage-panel.open {
  max-height: 260px;
  overflow-y: auto;
  margin-bottom: 10px;
  border-color: var(--border);
  padding: 4px 12px;
}

.coverage-list {
  margin: 0;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
}
.coverage-list li { margin-bottom: 8px; }
.coverage-list code { font-size: 11px; }

.category-legend-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
}
.category-legend-table th {
  position: sticky;
  top: 0;
  background: var(--surface);
  text-align: left;
  padding: 5px 8px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.category-legend-table td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text);
}
.category-legend-table td:nth-child(2) { white-space: nowrap; }
.category-legend-table td:nth-child(2) span[title] { cursor: help; border-bottom: 1px dotted var(--text-dim); }
.category-legend-table td:nth-child(3) { white-space: nowrap; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.cl-stage {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.03em;
  border-right: 1px solid var(--border);
}
#category-legend-panel .hint { margin: 8px 0 4px 0; }

.stage-input .swatch { background: var(--stage-input); }
.stage-processing .swatch { background: var(--stage-processing); }
.stage-output .swatch { background: var(--stage-output); }

#dynamics-charts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 260px; /* both charts have angled axis labels - never let them collapse below legible */
}
#dynamics-bars {
  flex: 3 1 0;
  min-height: 140px;
  width: 100%;
}
#dynamics-lines {
  flex: 2 1 0;
  min-height: 110px;
  width: 100%;
}

.placeholder {
  color: var(--text-dim);
  font-size: 13px;
  padding: 48px;
  text-align: center;
}

table.paths {
  border-collapse: collapse;
  font-size: 12.5px;
  width: 100%;
}
table.paths th, table.paths td {
  border-bottom: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
}
table.paths th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ---------- filter panel ---------- */

#filter-toggle {
  flex: 0 0 auto;
  margin: 0 0 10px 0;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 14px;
  width: fit-content;
}
#filter-toggle:hover { color: var(--text); }
#filter-toggle svg { width: 11px; height: 11px; transition: transform 0.15s; }
#filter-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }

#filter-panel {
  flex: 0 0 auto;
  max-height: 0;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0 16px;
  background: var(--surface);
  margin-bottom: 0;
  transition: max-height 0.2s ease, padding 0.2s ease, margin 0.2s ease;
}
#filter-panel.open {
  max-height: 220px;
  padding: 12px 16px;
  margin-bottom: 10px;
  border-color: var(--border);
}

.filter-row {
  display: flex;
  gap: 18px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.filter-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-dim);
}

.filter-row select {
  font-size: 12px;
  min-width: 110px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  padding: 3px 5px;
}

.filter-row input[type="text"] {
  font-size: 12px;
  padding: 4px 6px;
  width: 160px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}

.filter-row button {
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
.filter-row button:hover { border-color: var(--text-dim); }

#f-status { margin: 4px 0 0 0; }

button.type-toggle {
  font-size: 11px;
  padding: 1px 6px;
  margin-left: 6px;
  cursor: pointer;
}

h3 { font-weight: 600; letter-spacing: -0.005em; }

output { font-variant-numeric: tabular-nums; }

/* ---------- global neuron search ---------- */

#search-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.35);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
}
#search-modal.open { display: flex; }

#search-modal-panel {
  width: 100%;
  max-width: 560px;
  max-height: 70vh;
  margin: 0 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#search-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}
#search-input-row svg { width: 15px; height: 15px; color: var(--text-dim); flex: 0 0 auto; }
#search-input {
  flex: 1 1 auto;
  border: none;
  background: none;
  color: var(--text);
  font-size: 14px;
  outline: none;
}
#search-close {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: 10.5px;
  padding: 3px 6px;
  cursor: pointer;
}

#search-results { overflow-y: auto; flex: 1 1 auto; }
.search-result {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}
.search-result:last-child { border-bottom: none; }
.search-result:hover, .search-result.active { background: var(--surface); }
.search-result .sr-name { font-weight: 600; font-size: 13px; }
.search-result .sr-bodyid { font-size: 11px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.search-result .sr-meta { font-size: 11px; color: var(--text-dim); margin-left: auto; text-align: right; white-space: nowrap; }
.search-result .sr-unreachable { font-size: 10px; color: var(--text-dim); font-style: italic; }
#search-results .search-empty { padding: 18px 14px; color: var(--text-dim); font-size: 12.5px; text-align: center; }
#search-hint { flex: 0 0 auto; margin: 0; padding: 8px 14px; border-top: 1px solid var(--border); }