/* AIQ Institute: authority site. Light by default, dark via prefers-color-scheme or the toggle. */
:root {
  --paper: #f1eee6;
  --paper-2: #e8e4d8;
  --card: #f8f6f0;
  --ink: #16213a;
  --ink-2: #4b556f;
  --rule: #cdc7b6;
  --accent: #8a2f3b;
  --accent-ink: #ffffff;
  --focus: #1d4ed8;
  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --measure: 40rem;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1526; --paper-2: #17203a; --card: #131b30; --ink: #ebe7da; --ink-2: #a9afc2;
    --rule: #2c3652; --accent: #e29aa4; --accent-ink: #0e1526; --focus: #93b4ff; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1526; --paper-2: #17203a; --card: #131b30; --ink: #ebe7da; --ink-2: #a9afc2;
  --rule: #2c3652; --accent: #e29aa4; --accent-ink: #0e1526; --focus: #93b4ff; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans); font-feature-settings: "kern", "liga";
  overflow-wrap: break-word;
}
img, svg { max-width: 100%; }
a { color: var(--ink); text-decoration-color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 50; }
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: 72rem; margin-inline: auto; padding-inline: clamp(1rem, 5vw, 3rem); }

/* type */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; color: var(--ink); margin: 0; letter-spacing: -0.005em; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.7rem); line-height: 1.08; letter-spacing: -0.015em; font-weight: 500; }
h2 { font-size: clamp(1.55rem, 3vw, 2.1rem); line-height: 1.2; }
h3 { font-size: 1.3rem; line-height: 1.3; }
h4 { font-size: 1.1rem; line-height: 1.3; }
p, ul, ol, dl { margin: 0 0 1em; }
.lead { font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.45rem); line-height: 1.5; color: var(--ink); max-width: 36rem; }
.prose { max-width: var(--measure); }
.prose p, .prose li { max-width: var(--measure); }
.muted { color: var(--ink-2); }
.small { font-size: .9rem; }
.num { font-variant-numeric: tabular-nums; }

/* header */
.site-header { border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 20; }
.site-header .bar { display: flex; align-items: center; gap: 1.25rem; min-height: 4rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand:hover { color: var(--ink); }
.brand-name { font-family: var(--serif); font-size: 1.35rem; font-weight: 600; letter-spacing: -0.01em; }
.mark { color: var(--ink); }
.mark-accent { fill: var(--accent); }
.site-nav ul { display: flex; gap: 1.3rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; font-size: .98rem; font-weight: 500; padding: .35rem 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-bottom-color: var(--rule); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); }
.theme-btn, .menu-btn {
  font: 500 .9rem/1 var(--sans); color: var(--ink); background: transparent;
  border: 1px solid var(--rule); border-radius: 2px; padding: .55rem .8rem; cursor: pointer; min-height: 2.4rem;
}
.theme-btn:hover, .menu-btn:hover { border-color: var(--ink); }
.menu-btn { display: none; }

/* sections */
.band { padding-block: clamp(2.5rem, 6vw, 4.75rem); border-top: 1px solid var(--rule); }
.band:first-child { border-top: 0; }
.band.tint { background: var(--paper-2); }
.sec-head { max-width: var(--measure); margin-bottom: 1.75rem; }
.sec-head p { color: var(--ink-2); margin-top: .6rem; margin-bottom: 0; }
.page-head { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 3vw, 2.5rem); }
.page-head h1 { max-width: 20ch; }
.page-head .lead { margin-top: 1.1rem; margin-bottom: 0; }
.crumbs { font-size: .92rem; color: var(--ink-2); margin-bottom: 1rem; }
.crumbs a { color: var(--ink-2); }

/* hero */
.hero { padding-block: clamp(2.5rem, 7vw, 5.5rem) clamp(2rem, 4vw, 3.5rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: end; }
.hero h1 { max-width: 15ch; }
.hero .lead { margin-top: 1.4rem; margin-bottom: 0; }
.specimen {
  background: var(--card); border: 1px solid var(--ink); padding: 1.4rem 1.5rem 1.2rem;
  box-shadow: 6px 6px 0 var(--rule);
}
.specimen p { margin: 0; }
.specimen .spec-read { font-family: var(--serif); font-size: 1.35rem; line-height: 1.3; margin: .5rem 0 1rem; }
.specimen dl { display: grid; grid-template-columns: auto 1fr; gap: .25rem 1rem; margin: 0 0 1rem; font-size: .95rem; }
.specimen dt { color: var(--ink-2); }
.specimen dd { margin: 0; }
.spec-note { font-size: .88rem; color: var(--ink-2); }

/* the level rail: a staircase, one step per level */
.rail { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); align-items: end; list-style: none; margin: 0; padding: 0; border-bottom: 3px solid var(--ink); }
.rail li { border-left: 1px solid var(--rule); background: color-mix(in srgb, var(--ink) calc(var(--n) * 2.5%), transparent); }
.rail li:first-child { border-left: 0; }
.rail a { display: block; text-decoration: none; padding: calc(.9rem + (var(--n) - 1) * 1.15rem) .9rem 1rem; height: 100%; }
.rail a:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--ink); }
.rail .lv { display: block; font-family: var(--serif); font-size: 2.4rem; line-height: 1; font-weight: 500; }
.rail .nm { display: block; font-weight: 600; margin-top: .35rem; }
.rail .rg { display: block; font-size: .86rem; color: var(--ink-2); margin-top: .1rem; }
.rail .ln { display: block; font-size: .9rem; line-height: 1.4; margin-top: .6rem; color: var(--ink-2); }

/* streams */
.streams { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(1.5rem, 4vw, 3.5rem); list-style: none; padding: 0; margin: 0; }
.stream { border-left: 4px solid hsl(var(--h) 45% 42%); padding: .2rem 0 1.4rem 1.1rem; margin-bottom: .8rem; }
:root[data-theme="dark"] .stream { border-left-color: hsl(var(--h) 50% 62%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .stream { border-left-color: hsl(var(--h) 50% 62%); } }
.stream h3 { margin-bottom: .1rem; }
.stream .who { color: var(--ink-2); margin-bottom: .6rem; font-size: .96rem; }
.stream ul { list-style: none; padding: 0; margin: 0; }
.stream li { padding: .12rem 0; }
.stream li .n { display: inline-block; min-width: 1.7rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }

/* ordered steps (a true sequence) */
.steps { list-style: none; counter-reset: step; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; padding: 0; margin: 0; }
.steps li { counter-increment: step; border-top: 3px solid var(--ink); padding-top: .8rem; }
.steps li::before { content: counter(step); font-family: var(--serif); font-size: 1.9rem; display: block; line-height: 1; margin-bottom: .5rem; color: var(--accent); }
.steps h3 { font-size: 1.15rem; margin-bottom: .3rem; }
.steps p { color: var(--ink-2); font-size: .98rem; margin: 0; }
.steps.five { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* calls to action */
.ctas { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); }
.ctas li { border-bottom: 1px solid var(--rule); }
.ctas a { display: grid; grid-template-columns: minmax(0, 14rem) 1fr; gap: 1rem; padding: 1.1rem .2rem; text-decoration: none; align-items: baseline; }
.ctas a:hover { background: var(--paper-2); color: var(--ink); }
.ctas .t { font-family: var(--serif); font-size: 1.45rem; }
.ctas .d { color: var(--ink-2); }

.placeholder-note { border: 1px dashed var(--ink-2); padding: 1rem 1.2rem; color: var(--ink-2); background: transparent; max-width: var(--measure); }
.placeholder-note p { margin: 0; }
.stat { display: flex; gap: 1.2rem; align-items: baseline; flex-wrap: wrap; }
.stat .big { font-family: var(--serif); font-size: 1.6rem; }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 0 1.5rem; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); }
table { width: 100%; border-collapse: collapse; font-size: .98rem; }
caption { text-align: left; padding: .8rem 0 .4rem; color: var(--ink-2); font-size: .92rem; }
th, td { text-align: left; vertical-align: top; padding: .75rem .9rem .75rem 0; border-bottom: 1px solid var(--rule); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
thead th { font-weight: 600; font-size: .92rem; color: var(--ink-2); border-bottom: 1px solid var(--ink); white-space: nowrap; }
tbody th { font-weight: 600; }
td.r, th.r { text-align: right; padding-right: 1rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.t-levels { min-width: 52rem; }
.t-fees { min-width: 34rem; }
.t-wide { min-width: 40rem; }
.lvnum { font-family: var(--serif); font-size: 1.5rem; line-height: 1; }

/* strand ladder */
.ladder { list-style: none; padding: 0; margin: 0; }
.rung { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 0 2rem; padding: 1.6rem 0; border-top: 1px solid var(--rule); }
.rung:first-child { border-top: 2px solid var(--ink); }
.rung-id .lvnum { font-size: 2.6rem; display: block; }
.rung-id .nm { font-weight: 600; display: block; }
.rung-id .fee { color: var(--ink-2); font-size: .95rem; margin-top: .4rem; display: block; }
.rung h3 { font-size: 1.05rem; margin: 1rem 0 .3rem; font-family: var(--sans); font-weight: 600; letter-spacing: 0; }
.rung h3:first-child { margin-top: 0; }
.rung ul { padding-left: 1.15rem; margin: 0 0 .6rem; max-width: var(--measure); }
.rung li { margin-bottom: .2rem; }
.facts { display: flex; flex-wrap: wrap; gap: .3rem 1.6rem; color: var(--ink-2); font-size: .95rem; margin: .6rem 0 0; }
.facts span b { color: var(--ink); font-weight: 600; }
.sit { display: inline-block; margin-top: .6rem; font-weight: 600; }

/* buttons and forms */
.btn {
  display: inline-block; font: 600 1rem/1 var(--sans); padding: .85rem 1.3rem; background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); border-radius: 2px; text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn:disabled:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
label { display: block; font-weight: 600; margin-bottom: .3rem; }
input[type="text"], input[type="email"], select, textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--ink-2); border-radius: 2px; padding: .7rem .8rem;
}
input:disabled, select:disabled, textarea:disabled { opacity: .55; cursor: not-allowed; }
.field { margin-bottom: 1rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.5rem; max-width: 46rem; }
.form-grid .full { grid-column: 1 / -1; }
fieldset { border: 1px solid var(--rule); padding: 1.25rem 1.25rem .5rem; margin: 0 0 1rem; }
legend { font-family: var(--serif); font-size: 1.15rem; padding: 0 .4rem; }
.lookup { display: flex; gap: .8rem; flex-wrap: wrap; max-width: 36rem; align-items: end; }
.lookup .field { flex: 1 1 14rem; margin: 0; }
#lookup-result { margin-top: 1.5rem; max-width: 40rem; }
.record { border: 1px solid var(--ink); background: var(--card); padding: 1.4rem 1.5rem; }
.record h3 { margin-bottom: .6rem; }
.record dl { display: grid; grid-template-columns: auto 1fr; gap: .3rem 1.2rem; margin: 0 0 .8rem; }
.record dt { color: var(--ink-2); }
.record dd { margin: 0; }
.no-record { border-left: 4px solid var(--accent); padding: .4rem 0 .4rem 1rem; }

/* governance seats */
.seats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; list-style: none; padding: 0; margin: 0 0 1.5rem; }
.seats li { border: 1px dashed var(--ink-2); padding: 1rem 1.1rem; color: var(--ink-2); min-height: 4.5rem; }
.seats.seven { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.seats b { color: var(--ink); font-weight: 600; display: block; }

/* founding advisors */
.advisors { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 1.5rem; list-style: none; padding: 0; margin: 0; }
.advisor { border: 1px solid var(--rule); background: var(--card); padding: 1rem; }
.adv-photo { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; margin-bottom: .9rem; }
.adv-initials { display: flex; align-items: center; justify-content: center; }
.adv-initials span { display: flex; align-items: center; justify-content: center; width: 55%; aspect-ratio: 1 / 1; border-radius: 50%; border: 2px solid var(--ink); color: var(--ink); font-family: var(--serif); font-size: 2.2rem; }
.advisor h3 { margin: 0 0 .2rem; }
.adv-title { margin: 0 0 .5rem; color: var(--ink-2); }
.adv-line { margin: 0 0 .6rem; }
.adv-link { margin: 0; }

/* faq */
.faq details { border-top: 1px solid var(--rule); padding: .1rem 0; max-width: 46rem; }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; font-family: var(--serif); font-size: 1.25rem; padding: 1rem 2rem 1rem 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .2rem; top: .9rem; font-family: var(--sans); font-size: 1.4rem; color: var(--accent); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--ink); padding-bottom: .6rem; }

.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1.5rem, 4vw, 3.5rem); }
.defs { display: grid; grid-template-columns: minmax(0, 12rem) 1fr; gap: .9rem 2rem; margin: 0; max-width: 52rem; }
.defs dt { font-family: var(--serif); font-size: 1.15rem; }
.defs dd { margin: 0; color: var(--ink); }
.pill { display: inline-block; border: 1px solid var(--ink-2); border-radius: 2px; padding: 0 .45rem; font-size: .85rem; color: var(--ink-2); white-space: nowrap; }
.pill.fast { border-color: var(--accent); color: var(--accent); }
address { font-style: normal; }

/* footer */
.site-footer { border-top: 3px solid var(--ink); margin-top: 2rem; padding-block: 2.5rem 3rem; background: var(--paper); }
.foot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; max-width: 40rem; margin-bottom: 2rem; }
.foot-title { font-family: var(--serif); font-size: 1.1rem; margin: 0 0 .5rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { padding: .12rem 0; }
.foot-note { max-width: 40rem; color: var(--ink-2); font-size: .95rem; margin: 0; border-top: 1px solid var(--rule); padding-top: 1.2rem; }

/* tablet */
@media (max-width: 62rem) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .specimen { max-width: 28rem; }
  .steps, .steps.five { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .seats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .seats.seven { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-nav ul { gap: 1rem; }
}

/* phone: collapsible nav, rail becomes a stack, single columns */
@media (max-width: 48rem) {
  body { font-size: 1rem; }
  .menu-btn { display: inline-block; }
  .js .site-nav { display: none; order: 5; width: 100%; padding-bottom: .8rem; }
  .js .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { display: block; padding: .7rem 0; border-bottom: 1px solid var(--rule); }
  .site-nav a[aria-current="page"] { border-bottom-color: var(--accent); }
  .rail { grid-template-columns: 1fr; border-bottom: 0; }
  .rail li { border-left: 0; border-bottom: 1px solid var(--rule); background: none; }
  .rail a { padding: 1rem 0 1rem 0; position: relative; }
  .rail a::before { content: ""; display: block; height: 5px; width: calc(var(--n) * 16.6%); background: var(--accent); margin-bottom: .7rem; }
  .streams, .two-col, .form-grid { grid-template-columns: 1fr; }
  .steps, .steps.five { grid-template-columns: 1fr; }
  .ctas a { grid-template-columns: 1fr; gap: .2rem; }
  .rung { grid-template-columns: 1fr; gap: .8rem; }
  .rung-id .lvnum { display: inline; font-size: 2rem; margin-right: .6rem; }
  .rung-id .nm { display: inline; }
  .seats, .seats.seven { grid-template-columns: 1fr; }
  .defs { grid-template-columns: 1fr; gap: .2rem; }
  .defs dd { margin-bottom: .8rem; }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .specimen { box-shadow: 4px 4px 0 var(--rule); }
}

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
@media print { .site-header, .site-footer .foot-grid, .theme-btn, .menu-btn { display: none; } body { background: #fff; color: #000; } }