/* EON Risk Services: AI risk identification site.
   One stylesheet for the pages built by site_build/build_ai_pages.py.
   The older bank-method pages keep css/style.css. */

:root {
  --ink: #1B2A4A;
  --ink-2: #47536A;
  --ink-3: #6B768A;
  --paper: #FFFFFF;
  --paper-2: #F2F4F7;
  --rule: #D7DCE3;
  --link: #1F6F6F;
  --link-hover: #154F4F;
  --gold: #C5A55A;
  --low: #A9CFA8;
  --moderate: #F2D47F;
  --high: #EE9F58;
  --critical: #C8464E;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wrap: 1160px;
  --gutter: clamp(16px, 4vw, 32px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}
img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 { margin: 0 0 0.5em; color: var(--ink); }
h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.25rem); line-height: 1.08; }
h2 { font-size: clamp(1.6rem, 1.25rem + 1.2vw, 2.1rem); line-height: 1.18; }
h3 { font-size: 1.15rem; line-height: 1.35; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p, ul, ol, dl, table { margin: 0 0 1rem; }
a { color: var(--link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--link-hover); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 2px; }
strong { font-weight: 600; }
small, .small { font-size: 0.875rem; }
.muted { color: var(--ink-2); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 20; }
.skip:focus { left: 8px; }

/* Layout */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.prose { max-width: 68ch; }
.prose p, .prose li { color: var(--ink); }
.section { padding: clamp(48px, 7vw, 88px) 0; border-top: 1px solid var(--rule); }
.section--grey { background: var(--paper-2); border-top: 0; }
.section__head { max-width: 68ch; margin-bottom: 2rem; }
.section__head p { color: var(--ink-2); }
.split { display: grid; gap: clamp(32px, 5vw, 64px); grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* Header */
.site-head { border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 10; }
.site-head__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; }
.site-head__logo img { height: 40px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: 0.95rem; padding: 8px 10px; border-radius: 4px; }
.site-nav a:hover { background: var(--paper-2); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--gold); border-radius: 0; }
.site-nav .btn { margin-left: 8px; color: #fff; }
.site-nav .btn:hover { background: var(--link-hover); }
.nav-toggle { display: none; background: none; border: 1px solid var(--rule); border-radius: 4px; padding: 8px 10px; color: var(--ink); font: inherit; cursor: pointer; }
@media (max-width: 980px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--rule); flex-direction: column; align-items: stretch; padding: 8px var(--gutter) 16px; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 8px; }
  .site-nav .btn { margin: 8px 0 0; text-align: center; }
}

/* Buttons */
.btn {
  display: inline-block; font: inherit; font-weight: 600; font-size: 0.98rem; line-height: 1.2;
  padding: 13px 20px; border-radius: 4px; border: 1px solid var(--link);
  background: var(--link); color: #fff; text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--link-hover); border-color: var(--link-hover); color: #fff; }
.btn--quiet { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--quiet:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn[disabled] { opacity: 0.6; cursor: wait; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.5rem 0 1rem; }

/* Hero */
.hero { padding: clamp(40px, 6vw, 80px) 0 clamp(40px, 6vw, 72px); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }
.hero h1 { font-size: clamp(2rem, 1.3rem + 2.2vw, 2.9rem); }
.hero h1::before { content: ""; display: block; width: 96px; height: 5px; background: var(--gold); margin-bottom: 22px; }
.hero__lede { font-size: 1.2rem; line-height: 1.55; color: var(--ink); max-width: 46ch; }
.hero__facts { color: var(--ink-2); font-size: 0.95rem; margin: 0; }
.section[id] { scroll-margin-top: 68px; }

/* Dates rail: the hero's one bold element. Filled markers have applied; gold rings are coming. */
.rail { margin: 0; background: var(--ink); color: #D9DEE7; border-radius: 6px; padding: 22px 22px 14px; }
.rail__title { font-family: var(--serif); font-weight: 600; font-size: 1.35rem; color: #fff; }
.rail__sub { font-size: 0.85rem; margin: 4px 0 12px; color: #B8C0CD; }
.rail ol { list-style: none; margin: 0; padding: 0; position: relative; }
.rail ol::before { content: ""; position: absolute; left: 6px; top: 12px; bottom: 12px; width: 2px; background: rgba(255, 255, 255, 0.22); }
.rail li { position: relative; display: grid; grid-template-columns: 8.4rem minmax(0, 1fr); gap: 2px 14px; padding: 7px 0 7px 28px; font-size: 0.92rem; line-height: 1.45; }
.rail li::before { content: ""; position: absolute; left: 1px; top: 12px; width: 12px; height: 12px; border-radius: 50%; background: #fff; }
.rail li.is-coming::before { left: 0; top: 11px; width: 14px; height: 14px; background: var(--ink); border: 3px solid var(--gold); }
.rail time { font-family: var(--serif); font-weight: 600; color: #fff; }
.rail li.is-coming time { color: var(--gold); }
.rail a { color: #D9DEE7; text-decoration-color: rgba(255, 255, 255, 0.35); }
.rail a:hover { color: #fff; text-decoration-color: #fff; }
.rail a:focus-visible { outline-color: var(--gold); }
.rail .rail__now { display: flex; align-items: center; gap: 10px; padding: 8px 0; color: var(--gold); font-size: 0.8rem; font-weight: 600; }
.rail .rail__now::before { position: static; flex: 0 0 14px; height: 2px; width: 14px; border-radius: 0; background: var(--gold); }
.rail .rail__now::after { content: ""; flex: 1; height: 1px; background: rgba(197, 165, 90, 0.55); }
@media (max-width: 520px) { .rail li { grid-template-columns: 1fr; } }

/* Duties by role */
.roles-nav { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0 0 8px; padding: 0; }
.roles-nav a { display: inline-block; padding: 6px 12px; border: 1px solid var(--rule); border-radius: 4px; color: var(--ink); text-decoration: none; font-size: 0.92rem; }
.roles-nav a:hover { border-color: var(--ink); }
.role { padding: 36px 0 4px; scroll-margin-top: 80px; }
.role__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 24px; border-bottom: 2px solid var(--ink); padding-bottom: 8px; }
.role__head h3 { font-family: var(--serif); font-size: 1.45rem; margin: 0; }
.role__when { margin: 0; font-weight: 600; color: var(--ink-2); font-size: 0.95rem; }
.role__who { color: var(--ink-2); margin: 12px 0 4px; max-width: 76ch; }
.duties { list-style: none; margin: 0; padding: 0; }
.duty, .duties__head { display: grid; grid-template-columns: minmax(0, 1fr) 12rem 10.5rem; gap: 4px 24px; }
.duties__head { font-size: 0.8rem; font-weight: 600; color: var(--ink-3); padding: 10px 0 6px; }
.duty { padding: 12px 0; border-top: 1px solid var(--rule); }
.duty p { margin: 0; }
.duty__cite, .duty__when { font-size: 0.92rem; color: var(--ink-2); }
.duty__lines { grid-column: 1; font-size: 0.86rem; color: var(--ink-2); margin-top: 4px !important; }
.duty__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.role__method { margin: 10px 0 0; padding: 12px 16px; background: var(--paper-2); border-left: 4px solid var(--gold); font-size: 0.95rem; max-width: 80ch; }
.section--grey .role__method { background: var(--paper); }
.fines { margin-top: 48px; max-width: 900px; }
.section > .fines:first-child { margin-top: 0; }
.nowrap { white-space: nowrap; }
@media (max-width: 760px) {
  .duties__head { display: none; }
  .duty { grid-template-columns: 1fr; }
  .duty__label { position: static; width: auto; height: auto; overflow: visible; clip: auto; font-weight: 600; color: var(--ink-3); }
}

/* Heat map */
.heat { margin: 0; background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: 20px; }
.heat__title { font-weight: 600; margin-bottom: 12px; }
.heat__body { display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: stretch; }
.heat__ylabel { writing-mode: vertical-rl; transform: rotate(180deg); text-align: center; color: var(--ink-2); font-size: 0.85rem; }
.heat__grid { display: grid; grid-template-columns: 22px repeat(5, minmax(0, 1fr)); gap: 4px; }
.heat__axis { display: flex; align-items: center; justify-content: center; color: var(--ink-3); font-size: 0.8rem; }
.heat__cell {
  aspect-ratio: 1 / 1; border: 0; border-radius: 3px; font: inherit; font-weight: 600;
  font-size: clamp(0.95rem, 0.7rem + 0.9vw, 1.35rem); color: var(--ink); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.heat__cell[data-n="0"] { color: transparent; cursor: default; }
.heat__cell.is-low { background: var(--low); }
.heat__cell.is-moderate { background: var(--moderate); }
.heat__cell.is-high { background: var(--high); }
.heat__cell.is-critical { background: var(--critical); color: #fff; }
.heat__cell[aria-pressed="true"] { outline: 3px solid var(--ink); outline-offset: 1px; }
.heat__xlabel { text-align: center; color: var(--ink-2); font-size: 0.85rem; margin-top: 6px; padding-left: 30px; }
.heat__legend { display: flex; flex-wrap: wrap; gap: 14px; margin: 14px 0 0; padding: 0; list-style: none; font-size: 0.85rem; color: var(--ink-2); }
.heat__legend li::before { content: ""; display: inline-block; width: 12px; height: 12px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; background: var(--c); }
.heat__out { margin-top: 14px; border-top: 1px solid var(--rule); padding-top: 12px; font-size: 0.92rem; min-height: 3.2em; }
.heat__out ul { list-style: none; padding: 0; margin: 6px 0 0; columns: 2 220px; column-gap: 20px; }
.heat__out li { break-inside: avoid; margin-bottom: 4px; }
.heat__cap { font-size: 0.85rem; color: var(--ink-2); margin: 12px 0 0; }

/* Phases (a real sequence, so numbered) */
.phases { list-style: none; padding: 0; margin: 0; counter-reset: phase; border-top: 1px solid var(--rule); }
.phases li { counter-increment: phase; display: grid; grid-template-columns: 3.2rem minmax(0, 15rem) minmax(0, 1fr); gap: 8px 24px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.phases li::before { content: counter(phase); font-family: var(--serif); font-size: 1.9rem; line-height: 1; color: var(--gold); font-weight: 600; }
.phases h3 { margin: 0; }
.phases p { margin: 0; color: var(--ink-2); }
@media (max-width: 720px) { .phases li { grid-template-columns: 2.4rem 1fr; } .phases p { grid-column: 2; } }

/* Register lines */
.lines { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.line { padding: 20px 0; border-bottom: 1px solid var(--rule); scroll-margin-top: 90px; }
.line__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.line__id { font-weight: 600; color: var(--ink-2); font-size: 0.95rem; min-width: 4.6rem; }
.line__title { margin: 0; font-size: 1.12rem; }
.line__title a { color: var(--ink); text-decoration: none; }
.line__title a:hover { text-decoration: underline; }
.line__desc { margin: 8px 0 0; max-width: 78ch; }
.line__meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px 28px; margin: 14px 0 0; font-size: 0.92rem; }
.line__meta dt { font-weight: 600; color: var(--ink-2); font-size: 0.85rem; }
.line__meta dd { margin: 2px 0 0; }
.line__scores { display: none; margin: 12px 0 0; font-size: 0.9rem; color: var(--ink-2); }
.show-scores .line__scores { display: block; }
.chip { display: inline-block; font-size: 0.8rem; font-weight: 600; padding: 2px 8px; border-radius: 3px; color: var(--ink); vertical-align: 1px; }
.chip--low { background: var(--low); }
.chip--moderate { background: var(--moderate); }
.chip--high { background: var(--high); }
.chip--critical { background: var(--critical); color: #fff; }
.cat-head { margin: 48px 0 8px; padding-top: 8px; scroll-margin-top: 90px; }
.cat-head p { color: var(--ink-2); max-width: 68ch; }

/* Filter bar */
.filters { position: sticky; top: 68px; z-index: 5; background: var(--paper); border-bottom: 1px solid var(--rule); padding: 14px 0; margin-bottom: 8px; }
.filters__row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filters button { font: inherit; font-size: 0.88rem; padding: 6px 10px; border-radius: 4px; border: 1px solid var(--rule); background: var(--paper); color: var(--ink); cursor: pointer; }
.filters button[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.filters input[type="search"] { font: inherit; font-size: 0.95rem; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 4px; min-width: 240px; flex: 1 1 240px; }
.filters label { font-size: 0.9rem; display: inline-flex; gap: 6px; align-items: center; }
.filters__count { font-size: 0.88rem; color: var(--ink-2); margin-left: auto; }
@media (max-width: 720px) {
  .filters { position: static; }
  .filters__row[role="group"] { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; }
  .filters button { white-space: nowrap; }
}

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: 6px; }
.table { width: 100%; border-collapse: collapse; font-size: 0.95rem; margin: 0; }
.table th, .table td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--rule); }
.table thead th { background: var(--ink); color: #fff; font-weight: 600; font-size: 0.88rem; }
.table tbody tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; }
.table-wrap .table { min-width: 600px; }
.table .group td { background: var(--paper-2); font-weight: 600; }

/* Definition lists for frameworks */
.rules { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: 0; border-top: 1px solid var(--rule); margin: 0; }
.rules dt, .rules dd { padding: 16px 0; border-bottom: 1px solid var(--rule); margin: 0; }
.rules dt { font-weight: 600; padding-right: 24px; }
@media (max-width: 720px) { .rules { grid-template-columns: 1fr; } .rules dt { border-bottom: 0; padding-bottom: 0; } }

/* Book block and form */
.book { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr); gap: clamp(24px, 4vw, 48px); align-items: start; }
.book__cover { border: 1px solid var(--rule); box-shadow: 0 1px 2px rgba(27, 42, 74, 0.08); }
@media (max-width: 720px) { .book { grid-template-columns: 1fr; } .book__cover { max-width: 180px; } }
.form { background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: clamp(20px, 3vw, 28px); max-width: 560px; }
.form label { display: block; font-weight: 600; font-size: 0.95rem; margin-bottom: 6px; }
.form input[type="email"], .form input[type="text"], .form select, .form textarea {
  width: 100%; font: inherit; padding: 11px 12px; border: 1px solid #AEB7C4; border-radius: 4px; background: #fff; color: var(--ink);
}
.form textarea { min-height: 140px; resize: vertical; }
.form .field { margin-bottom: 16px; }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 0.92rem; }
.form .check input { margin-top: 4px; }
.form .hp { position: absolute; left: -9999px; }
.form__note { font-size: 0.85rem; color: var(--ink-2); margin: 12px 0 0; }
.form__error { color: #A3242C; font-size: 0.92rem; margin: 10px 0 0; }
.form__done { display: none; }
.form__done.show { display: block; }
.dl-list { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 10px; }
.dl-list a { display: block; padding: 12px 14px; border: 1px solid var(--rule); border-radius: 4px; text-decoration: none; font-weight: 600; }
.dl-list a span { display: block; font-weight: 400; font-size: 0.88rem; color: var(--ink-2); }
.dl-list a:hover { border-color: var(--link); }

/* Contents list */
.contents { columns: 2 320px; column-gap: 40px; padding-left: 1.2rem; }
.contents li { break-inside: avoid; margin-bottom: 6px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--rule); padding: 14px 0; }
.faq details:first-of-type { border-top: 1px solid var(--rule); }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style-position: outside; }
.faq details p { margin: 10px 0 0; max-width: 72ch; }

/* Downloads */
.downloads { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.downloads li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 24px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.downloads h3 { margin: 0 0 4px; }
.downloads p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
@media (max-width: 640px) { .downloads li { grid-template-columns: 1fr; } }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.timeline li { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 4px 24px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.timeline .when { color: var(--ink-2); font-size: 0.92rem; }
.timeline p { margin: 4px 0 0; color: var(--ink-2); font-size: 0.95rem; }
@media (max-width: 640px) { .timeline li { grid-template-columns: 1fr; } }

/* Footer */
.site-foot { background: var(--ink); color: #D9DEE7; padding: 48px 0 32px; margin-top: 0; font-size: 0.92rem; }
.site-foot a { color: #fff; }
.site-foot__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); gap: 32px; }
.site-foot h2 { font-family: var(--sans); font-size: 0.95rem; color: #fff; margin-bottom: 10px; }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot li { margin-bottom: 6px; }
.site-foot__base { border-top: 1px solid rgba(255, 255, 255, 0.18); margin-top: 32px; padding-top: 16px; color: #B8C0CD; }
@media (max-width: 720px) { .site-foot__grid { grid-template-columns: 1fr; } }

.breadcrumb { font-size: 0.88rem; color: var(--ink-2); margin: 24px 0 0; }
.breadcrumb a { color: var(--ink-2); }
.page-head { padding: 28px 0 8px; }
.page-head .lede { font-size: 1.15rem; color: var(--ink); max-width: 64ch; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
@media print {
  .site-head, .site-foot, .filters, .form, .nav-toggle { display: none !important; }
  .line__scores { display: block !important; }
  body { font-size: 11pt; }
}