/* Systems blueprint — tokens documented in DESIGN.md */
@font-face { font-family: "Schibsted Grotesk"; src: url("assets/fonts/schibsted-grotesk.woff2") format("woff2"); font-weight: 400 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("assets/fonts/jetbrains-mono.woff2") format("woff2"); font-weight: 100 800; font-display: swap; }

:root {
  --paper: #F4F5F3; --surface: #FFFFFF; --ink: #10141B; --ink-2: #4A5362;
  --rule: #D5D9E0; --rule-strong: #A9B1BE; --grid: rgba(46, 84, 200, 0.06);
  --accent: #2E54C8; --on-accent: #FFFFFF; --accent-wash: #E4EAFB; --signal: #A35A00;
  --c-1: #2E54C8; --c-2: #A35A00; /* chart series, validated with the dataviz palette checker */
  --sans: "Schibsted Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --gutter: 16px; --max: 1200px; --radius: 6px; --t: 160ms;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0C1016; --surface: #121822; --ink: #E8EBF0; --ink-2: #A3ACBA;
    --rule: #253041; --rule-strong: #3A475C; --grid: rgba(142, 166, 242, 0.06);
    --accent: #8EA6F2; --on-accent: #0C1016; --accent-wash: #172241; --signal: #E7A64B; --c-1: #6F89E4; --c-2: #C7832B;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0C1016; --surface: #121822; --ink: #E8EBF0; --ink-2: #A3ACBA;
  --rule: #253041; --rule-strong: #3A475C; --grid: rgba(142, 166, 242, 0.06);
  --accent: #8EA6F2; --on-accent: #0C1016; --accent-wash: #172241; --signal: #E7A64B; --c-1: #6F89E4; --c-2: #C7832B;
  color-scheme: dark;
}
@media (min-width: 760px) { :root { --gutter: 32px; } }

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background-color: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.6 var(--sans); font-optical-sizing: auto;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  overflow-x: clip;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.15; font-weight: 700; letter-spacing: -0.012em; text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; }
.mono, code, kbd, .sid { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 8px; top: -60px; z-index: 50; background: var(--ink); color: var(--paper); padding: 8px 12px; }
.skip:focus { top: 8px; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px;
  font: 600 0.9375rem/1 var(--sans); color: var(--ink); background: transparent; text-decoration: none;
  border: 1px solid var(--rule-strong); border-radius: var(--radius); cursor: pointer;
  transition: background-color var(--t), border-color var(--t), color var(--t);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn.small { min-height: 36px; padding: 0 12px; font-size: 0.875rem; }
.chip {
  font: 500 0.875rem/1.3 var(--sans); color: var(--ink); background: var(--surface); text-align: left;
  border: 1px solid var(--rule); border-radius: 999px; padding: 8px 14px; cursor: pointer; min-height: 40px;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.badge {
  display: inline-block; font: 500 0.75rem/1.4 var(--mono); color: var(--ink-2);
  border: 1px dashed var(--rule-strong); border-radius: 2px; padding: 3px 8px;
}
kbd { border: 1px solid var(--rule-strong); border-radius: 4px; padding: 0 5px; font-size: 0.75rem; color: var(--ink-2); }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 20; padding-top: env(safe-area-inset-top);
  background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.nav { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); min-height: 56px; display: flex; align-items: center; gap: 8px; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; margin-right: auto; white-space: nowrap; }
.nav-links { list-style: none; display: flex; gap: 4px; }
.nav-links a { display: block; padding: 8px 10px; color: var(--ink); text-decoration: none; font-weight: 500; font-size: 0.9375rem; border-radius: var(--radius); }
.nav-links a:hover { color: var(--accent); }
.ask-btn, .theme-btn, .menu-btn {
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 0 10px; cursor: pointer;
  font: 600 0.9375rem/1 var(--sans); color: var(--ink); background: transparent; border: 1px solid var(--rule); border-radius: var(--radius);
}
.ask-btn:hover, .theme-btn:hover, .menu-btn:hover { border-color: var(--accent); color: var(--accent); }
.theme-btn { width: 40px; justify-content: center; padding: 0; }
.menu-btn { display: none; }
@media (max-width: 859px) {
  .menu-btn { display: inline-flex; order: 3; }
  .ask-btn kbd { display: none; }
  .nav { flex-wrap: wrap; }
  .nav-links { display: none; order: 5; width: 100%; flex-direction: column; padding: 4px 0 12px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 4px; border-bottom: 1px solid var(--rule); border-radius: 0; }
}

/* layout */
main { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.colophon { width: min(var(--max) - 2 * var(--gutter), 100% - 2 * var(--gutter)); margin: 0 auto; }
.band { padding-block: 56px; border-top: 1px solid var(--rule); }
@media (min-width: 760px) { .band { padding-block: 88px; } }
.section-head { max-width: 68ch; margin-bottom: 32px; }
.section-head h2 { font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem); margin: 6px 0 12px; }
.section-head h3 { font-size: clamp(1.375rem, 1.1rem + 1vw, 1.875rem); margin: 6px 0 8px; }
.section-head p { color: var(--ink-2); }
.sid { color: var(--accent); text-decoration: none; }
.sid:hover { text-decoration: underline; }

/* hero */
.hero { display: grid; gap: 32px; padding-block: 40px 56px; align-items: end; }
@media (min-width: 900px) { .hero { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); padding-block: 72px 88px; } }
.hero h1 { font-size: clamp(2.25rem, 1.1rem + 4.6vw, 4.25rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 750; max-width: 14em; }
.subline { font-size: 1.1875rem; color: var(--ink-2); margin: 20px 0 28px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.readouts { display: grid; margin: 40px 0 0; border-top: 1px solid var(--rule); }
@media (min-width: 600px) { .readouts { grid-template-columns: 1.4fr 1fr 1fr; } }
.readout { padding: 16px 16px 4px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 600px) { .readout { border-bottom: 0; padding: 16px 16px 0; border-left: 1px solid var(--rule); } .readout:first-child { border-left: 0; padding-left: 0; } }
.readout dt { margin: 0; }
.readout-value { font-size: clamp(1.375rem, 1rem + 0.8vw, 1.75rem); font-weight: 750; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; white-space: nowrap; }
.readout-value:hover { color: var(--accent); }
.readout dd { margin: 4px 0 0; font-size: 0.875rem; color: var(--ink-2); line-height: 1.45; }
.hero-photo { position: relative; justify-self: center; width: min(100%, 440px); border-bottom: 1px solid var(--ink); }
.hero-photo::before, .hero-photo::after { content: ""; position: absolute; width: 18px; height: 18px; border: 0 solid var(--accent); }
.hero-photo::before { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; }
.hero-photo::after { top: 0; right: 0; border-top-width: 1px; border-right-width: 1px; }
.photo img { width: 100%; }
@media (max-width: 899px) { .hero-photo { order: -1; width: min(62%, 280px); justify-self: start; } }

/* at a glance */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0 0 28px; border-block: 1px solid var(--rule); }
.stats > div { padding: 16px 12px 16px 0; }
.stats > div + div { border-left: 1px solid var(--rule); padding-left: 16px; }
.stats dt { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); font-weight: 750; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stats dd { margin: 0; color: var(--ink-2); font-size: 0.9375rem; }
.stack { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.stack li { font: 500 0.8125rem/1 var(--mono); border: 1px solid var(--rule); background: var(--surface); padding: 8px 10px; border-radius: 2px; }
.skills summary { cursor: pointer; font-weight: 600; color: var(--accent); width: fit-content; }
.skills dl { margin: 12px 0 0; display: grid; gap: 8px; max-width: 80ch; }
.skills dl div { display: grid; gap: 2px 16px; }
@media (min-width: 700px) { .skills dl div { grid-template-columns: 12rem 1fr; } }
.skills dt { font-weight: 600; }
.skills dd { margin: 0; color: var(--ink-2); }

/* sheets & diagrams */
.sheet {
  position: relative; margin: 0; padding: 20px; border: 1px solid var(--rule); border-radius: 2px;
  background-color: var(--surface);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 16px 16px;
}
.sheet figcaption { font-size: 0.875rem; color: var(--ink-2); margin-bottom: 18px; }
.sheet figcaption .mono { color: var(--accent); margin-right: 6px; }
.case + .case { margin-top: 88px; }
.flow { list-style: none; display: flex; align-items: center; gap: 28px; }
.step { flex: 1 1 0; min-width: 0; position: relative; }
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 50%; right: -28px; width: 28px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--accent) 0 5px, transparent 5px 10px);
  background-size: 10px 2px; animation: drift-x 1.6s linear infinite; opacity: 0.7;
}
.par-group { display: flex; flex-direction: column; gap: 8px; }
.node {
  display: block; width: 100%; min-height: 64px; padding: 10px 12px; text-align: left; cursor: pointer;
  background: var(--paper); color: var(--ink); border: 1px solid var(--rule-strong); border-radius: var(--radius);
  font: inherit; transition: border-color var(--t), background-color var(--t), box-shadow var(--t);
}
.par .node { min-height: 48px; padding-block: 6px; }
.node:hover { border-color: var(--accent); }
.node[aria-pressed="true"] { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); background: var(--accent-wash); }
.node.passed { border-color: var(--accent); }
.node-label { display: block; font-weight: 650; font-size: 0.9375rem; line-height: 1.25; }
.node-meta { display: block; font: 400 0.75rem/1.35 var(--mono); color: var(--ink-2); margin-top: 3px; }
@keyframes drift-x { to { background-position: 10px 0; } }
@keyframes drift-y { to { background-position: 0 10px; } }
@media (max-width: 899px) {
  .flow { flex-direction: column; align-items: stretch; gap: 22px; }
  .step:not(:last-child)::after {
    top: 100%; right: auto; left: 28px; width: 2px; height: 22px;
    background: repeating-linear-gradient(180deg, var(--accent) 0 5px, transparent 5px 10px);
    background-size: 2px 10px; animation-name: drift-y;
  }
  .par-group { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.panel { margin-top: 20px; padding-top: 14px; border-top: 1px dashed var(--rule-strong); min-height: 6.5em; }
.panel > * { max-width: 78ch; }
.panel-hint { color: var(--ink-2); font-size: 0.9375rem; }
.panel .p-title { margin: 0 0 4px; font-weight: 700; }
.panel p { margin-bottom: 6px; font-size: 0.9375rem; }
.panel .p-metric { font: 600 0.875rem/1.4 var(--mono); color: var(--accent); }
.panel .p-trade b { color: var(--signal); font-weight: 650; }
.stepper { display: flex; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.step-count { color: var(--ink-2); min-width: 7em; text-align: center; }

/* before/after timeline */
.timeline { margin-top: 16px; }
.timeline-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.timeline-head p { margin: 0; color: var(--ink-2); }
.seg { display: inline-flex; border: 1px solid var(--rule-strong); border-radius: var(--radius); overflow: hidden; }
.seg button { font: 600 0.875rem/1 var(--sans); padding: 0 16px; min-height: 36px; border: 0; background: transparent; color: var(--ink); cursor: pointer; }
.seg button + button { border-left: 1px solid var(--rule-strong); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.gantt { display: grid; gap: 6px; }
.g-row { display: grid; grid-template-columns: 9.5rem 1fr; align-items: center; gap: 12px; }
.g-label { font: 400 0.75rem/1.2 var(--mono); color: var(--ink-2); }
.g-track { position: relative; height: 14px; border-bottom: 1px solid var(--rule); }
.g-bar { position: absolute; top: 0; height: 12px; left: var(--l); width: var(--w); background: var(--ink-2); border-radius: 2px; transform-origin: left; animation: grow 420ms ease-out both; }
.gantt[data-view="after"] .g-bar { background: var(--accent); }
@keyframes grow { from { transform: scaleX(0); } }
@media (max-width: 599px) { .g-row { grid-template-columns: 6.5rem 1fr; gap: 8px; } }

/* case body */
.case-body { display: grid; gap: 8px 48px; margin-top: 32px; }
@media (min-width: 900px) { .case-body { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); } }
.case-body h4, .paper h4 { font-size: 1rem; margin: 0 0 6px; }
.case-body p { color: var(--ink); }
.decisions { list-style: none; margin-bottom: 1em; }
.decisions li { position: relative; padding-left: 18px; margin-bottom: 8px; }
.decisions li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 7px; height: 7px; background: var(--accent); }
.callout { border-left: 3px solid var(--signal); padding: 2px 0 2px 16px; margin-bottom: 24px; }
.callout.result { border-left-color: var(--accent); }
.callout.result p { font-weight: 600; font-size: 1.125rem; line-height: 1.45; }
.callout p:last-child { margin-bottom: 0; }

/* ledger */
.ledger { list-style: none; border-top: 1px solid var(--rule-strong); }
.ledger li { border-bottom: 1px solid var(--rule); }
.ledger summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1.5rem 1fr auto; gap: 2px 12px; padding: 16px 0; }
.ledger summary::-webkit-details-marker { display: none; }
.ledger summary::before { content: "+"; font: 500 1rem/1.5 var(--mono); color: var(--accent); grid-row: span 2; }
.ledger details[open] summary::before { content: "−"; }
.ledger summary:hover .l-title { color: var(--accent); }
.l-title { font-weight: 650; font-size: 1.0625rem; }
.l-metric { font: 500 0.8125rem/1.8 var(--mono); color: var(--accent); text-align: right; }
.l-sum { grid-column: 2 / -1; color: var(--ink-2); font-size: 0.9375rem; }
.ledger details p { margin: 0 0 16px 2.25rem; max-width: 68ch; }
@media (max-width: 599px) { .ledger summary { grid-template-columns: 1.5rem 1fr; } .l-metric { text-align: left; grid-column: 2; } .ledger summary::before { grid-row: span 3; } }

/* research */
.paper { border-top: 3px double var(--rule-strong); padding-top: 24px; }
.paper + .paper { margin-top: 56px; }
.paper header { max-width: 68ch; margin-bottom: 20px; }
.paper h3 { font-size: clamp(1.375rem, 1.1rem + 1vw, 1.875rem); margin: 6px 0 8px; }
.byline { color: var(--ink-2); font-size: 0.9375rem; }
.paper-grid { display: grid; gap: 32px; margin-bottom: 28px; }
@media (min-width: 960px) { .paper-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; } }
.paper-text p { max-width: 68ch; }
.paper > p, .paper .callout { max-width: 78ch; }
.aside { color: var(--ink-2); font-size: 0.9375rem; }
.chart { width: 100%; height: auto; overflow: visible; }
.chart text { font-family: var(--mono); }
.c-grid { stroke: var(--rule); stroke-width: 1; }
.c-tick { fill: var(--ink-2); font-size: 11px; }
.c-row { fill: var(--ink); font-size: 12.5px; font-family: var(--sans) !important; font-weight: 600; }
.c-ae { stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 4 3; }
.c-ae-label { fill: var(--ink); font-size: 11px; }
.c-link { stroke: var(--rule-strong); stroke-width: 2; }
.c-z { fill: var(--c-1); stroke: var(--surface); stroke-width: 2; }
.c-pdi { fill: var(--c-2); stroke: var(--surface); stroke-width: 2; }
.c-legend text { fill: var(--ink-2); font-size: 12px; }
.pt { cursor: default; outline: none; }
.pt:hover circle, .pt:focus-visible circle { r: 7.5; }
.pt:hover rect, .pt:focus-visible rect { stroke: var(--ink); }
.pt:focus-visible circle { stroke: var(--ink); }
.table-view { margin-top: 12px; font-size: 0.875rem; }
.table-view summary { cursor: pointer; color: var(--accent); font-weight: 600; width: fit-content; }
.table-wrap { overflow-x: auto; margin-top: 8px; }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
caption { text-align: left; color: var(--ink-2); padding-bottom: 6px; }
th, td { text-align: left; padding: 6px 10px 6px 0; border-bottom: 1px solid var(--rule); white-space: nowrap; }
td { font-family: var(--mono); font-size: 0.8125rem; }
.links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; }
.links a { font-weight: 600; }

/* cells */
.cells { display: grid; border-top: 1px solid var(--rule-strong); margin-top: 32px; }
@media (min-width: 760px) { .cells { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1040px) { .cells.three { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.cell { padding: 24px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 760px) { .cell { padding: 28px 28px 28px 0; } .cells:not(.three) .cell:nth-child(even), .cells.three .cell + .cell { padding-left: 28px; border-left: 1px solid var(--rule); } }
@media (min-width: 760px) and (max-width: 1039px) { .cells.three .cell + .cell { padding-left: 0; border-left: 0; } .cells.three .cell:nth-child(even) { padding-left: 28px; border-left: 1px solid var(--rule); } }
.cell h3 { font-size: 1.3125rem; margin: 6px 0 8px; }
.cell > p:not(.links) { color: var(--ink); }
.points { list-style: none; margin-bottom: 16px; }
.points li { position: relative; padding-left: 16px; margin-bottom: 8px; color: var(--ink-2); font-size: 0.9375rem; line-height: 1.55; }
.points li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 8px; height: 1px; background: var(--ink-2); }

/* experience */
.exp-grid { display: grid; gap: 40px; }
@media (min-width: 900px) { .exp-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 64px; } }
.timeline-list { list-style: none; border-left: 1px solid var(--rule-strong); }
.timeline-list li { position: relative; padding: 0 0 28px 22px; }
.timeline-list li::before { content: ""; position: absolute; left: -5px; top: 6px; width: 9px; height: 9px; background: var(--paper); border: 2px solid var(--accent); }
.timeline-list h3 { font-size: 1.125rem; margin: 2px 0 2px; }
.t-when { color: var(--ink-2); margin: 0; }
.t-org { color: var(--ink-2); font-weight: 500; margin-bottom: 8px; }
.timeline-list.compact li { padding-bottom: 18px; }
.minor { font-size: 1rem; margin: 0 0 16px; }
.minor + .timeline-list, .recognition { margin-bottom: 32px; }
.recognition { list-style: none; border-top: 1px solid var(--rule); }
.recognition li { padding: 10px 0; border-bottom: 1px solid var(--rule); font-weight: 500; }

/* about */
.lede { font-size: 1.1875rem; color: var(--ink) !important; }
.principles { list-style: none; display: grid; gap: 24px 40px; }
@media (min-width: 760px) { .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.principles li { border-top: 2px solid var(--ink); padding-top: 14px; }
.principle { font-size: 1.3125rem; font-weight: 700; line-height: 1.3; margin-bottom: 8px; }
.evidence { color: var(--ink-2); font-size: 0.9375rem; }
.evidence .mono { color: var(--ink-2); margin-left: 4px; }

/* contact */
.contact-row { display: grid; gap: 16px; }
.email { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin: 0; }
.email a { font-size: clamp(1.375rem, 1rem + 2vw, 2.25rem); font-weight: 700; letter-spacing: -0.02em; word-break: break-all; }
.copy-status { font-size: 0.875rem; color: var(--ink-2); }

/* colophon */
.colophon { border-top: 1px solid var(--rule); padding-block: 56px calc(96px + env(safe-area-inset-bottom)); color: var(--ink-2); }
.colophon .section-head h2 { font-size: 1.375rem; }
.colophon > p { max-width: 72ch; }
.eval-badge .mono { color: var(--accent); border: 1px solid var(--accent); padding: 3px 8px; border-radius: 2px; margin-right: 6px; }
.fine { font-size: 0.875rem; margin-top: 24px; }

/* ask */
.ask-fab {
  position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 15;
  min-height: 48px; padding: 0 18px; border-radius: 999px; cursor: pointer;
  font: 650 0.9375rem/1 var(--sans); background: var(--accent); color: var(--on-accent); border: 1px solid var(--accent);
  opacity: 0; transform: translateY(8px); pointer-events: none; transition: opacity var(--t), transform var(--t);
}
.ask-fab.show { opacity: 1; transform: none; pointer-events: auto; }
.ask {
  margin: 0 0 0 auto; height: 100dvh; max-height: 100dvh; width: min(480px, 100vw); max-width: 100vw;
  padding: calc(20px + env(safe-area-inset-top)) 20px calc(20px + env(safe-area-inset-bottom));
  border: 0; border-left: 1px solid var(--rule-strong); background: var(--paper); color: var(--ink); overflow-y: auto;
}
.ask[open] { animation: slide-in 180ms ease-out; }
.ask::backdrop { background: rgba(8, 10, 14, 0.45); }
@keyframes slide-in { from { transform: translateX(24px); opacity: 0; } }
.ask-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.ask-head h2 { font-size: 1.375rem; }
.ask-note { color: var(--ink-2); font-size: 0.9375rem; }
.suggest { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 20px; }
.ask-form { display: flex; gap: 8px; }
.ask-form input {
  flex: 1; min-width: 0; min-height: 44px; padding: 0 12px; font: 400 1rem var(--sans); color: var(--ink);
  background: var(--surface); border: 1px solid var(--rule-strong); border-radius: var(--radius);
}
.ask-form input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
#ts-widget:not(:empty) { margin-top: 12px; }
.answer { margin-top: 20px; }
.answer .a-q { font-weight: 650; margin-bottom: 6px; }
.answer .a-text { white-space: pre-line; }
.answer .notice { border-left: 3px solid var(--signal); padding-left: 12px; color: var(--ink-2); font-size: 0.9375rem; }
.answer .loading { color: var(--ink-2); font-family: var(--mono); font-size: 0.875rem; }
.cites { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.cite { font: 500 0.8125rem/1 var(--mono); color: var(--accent); background: var(--accent-wash); border: 1px solid transparent; border-radius: 2px; padding: 7px 8px; cursor: pointer; }
.cite:hover { border-color: var(--accent); }
.hit { margin-bottom: 16px; }
.hit h3 { font-size: 1rem; margin-bottom: 4px; }
.hit p { font-size: 0.9375rem; color: var(--ink-2); margin-bottom: 4px; }
.cited { animation: cited 2.2s ease-out; }
@keyframes cited { 0%, 40% { box-shadow: 0 0 0 3px var(--accent); background-color: var(--accent-wash); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}