:root {
  --ink: #050e19;
  --surface: #0b1b2d;
  --surface-2: #102539;
  --line: rgba(148, 180, 214, .16);
  --line-strong: rgba(148, 180, 214, .30);
  --gold: #d4af37;
  --gold-light: #f2d06b;
  --green: #18c98f;
  --green-light: #50e4b0;
  --text: #edf4fb;
  --muted: #9bb0c5;
  --danger: #ffb5a8;
  --max: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  min-height: 100vh;
  background: var(--ink);
  color: var(--text);
  font-family: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

h1, h2, h3, .display {
  font-family: "Archivo", sans-serif;
  font-variation-settings: "wdth" 112;
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.025em;
}
h1 { font-size: clamp(2.55rem, 6vw, 4.6rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.16rem; }
.gold { color: var(--gold-light); }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--gold-light);
  font-family: "IBM Plex Mono", monospace;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--gold); }
.lede { max-width: 59ch; color: var(--muted); font-size: 1.1rem; }
.muted { color: var(--muted); }

.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 14, 25, .90);
  backdrop-filter: blur(15px);
}
.head-in {
  width: min(var(--max), calc(100% - 48px));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--gold-light), #9c7c1e);
  color: #071321;
  font-family: "Archivo", sans-serif;
  font-size: 1.08rem;
  font-weight: 800;
}
.brand-name { font-family: "Archivo", sans-serif; font-weight: 800; font-size: 1rem; line-height: 1.05; }
.brand-sub { color: var(--gold); font-family: "IBM Plex Mono", monospace; font-size: .58rem; letter-spacing: .22em; text-transform: uppercase; }
.head-nav { display: flex; align-items: center; gap: 25px; }
.head-nav a:not(.btn) { color: var(--muted); font-size: .9rem; text-decoration: none; }
.head-nav a:not(.btn):hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 12px 22px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font-family: "Archivo", sans-serif;
  font-size: .96rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.btn-gold { background: linear-gradient(140deg, #f6dd88, var(--gold) 58%, #ae8725); color: #071321; box-shadow: 0 10px 30px rgba(212, 175, 55, .2); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 15px 36px rgba(212, 175, 55, .3); }
.btn-ghost { border: 1px solid var(--line-strong); background: transparent; color: var(--text); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-light); transform: translateY(-2px); }
.btn-sm { min-height: 40px; padding: 9px 16px; font-size: .87rem; }

.hero { position: relative; overflow: hidden; padding: 76px 0 58px; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(650px 420px at 78% 24%, rgba(24, 201, 143, .12), transparent 64%), radial-gradient(620px 430px at 12% 8%, rgba(212, 175, 55, .10), transparent 65%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.03fr .97fr; gap: 56px; align-items: center; }
.hero .lede { margin-top: 22px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 30px; }
.hero-note { margin-top: 16px; color: var(--muted); font-family: "IBM Plex Mono", monospace; font-size: .73rem; }
.hero-media { position: relative; }
.hero-media img { width: 100%; aspect-ratio: 1.91 / 1; object-fit: cover; border: 1px solid var(--line-strong); border-radius: 18px; box-shadow: 0 30px 80px rgba(0, 0, 0, .55); }
.hero-chip {
  position: absolute;
  left: -18px;
  bottom: 24px;
  max-width: 270px;
  padding: 14px 17px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--green);
  border-radius: 12px;
  background: rgba(11, 27, 45, .94);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .5);
}
.hero-chip strong { display: block; color: var(--green-light); font-family: "Archivo", sans-serif; }
.hero-chip span { display: block; margin-top: 3px; color: var(--muted); font-size: .78rem; }

.disclosure { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.disclosure-in { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: flex-start; padding: 23px 0; }
.disclosure-badge { padding: 5px 9px; border: 1px solid rgba(242, 208, 107, .35); border-radius: 999px; color: var(--gold-light); font-family: "IBM Plex Mono", monospace; font-size: .65rem; letter-spacing: .09em; white-space: nowrap; }
.disclosure p { color: #c3d2e1; font-size: .9rem; }

.rail { border-bottom: 1px solid var(--line); background: rgba(11, 27, 45, .55); }
.rail-in { display: grid; grid-template-columns: repeat(4, 1fr); }
.rail-cell { min-height: 122px; padding: 25px 22px 23px 0; border-right: 1px solid var(--line); }
.rail-cell:last-child { border-right: 0; padding-left: 22px; }
.rail-cell:not(:first-child) { padding-left: 22px; }
.rail-cell strong { display: block; margin-bottom: 7px; color: var(--gold-light); font-family: "Archivo", sans-serif; font-size: 1.13rem; }
.rail-cell span { color: var(--muted); font-size: .84rem; }

.sect { padding: 88px 0; }
.sect-alt { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.sect-head { max-width: 740px; margin-bottom: 40px; }
.sect-head .lede { margin-top: 15px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center; }
.split img { width: 100%; border: 1px solid var(--line); border-radius: 16px; object-fit: cover; box-shadow: 0 24px 60px rgba(0, 0, 0, .35); }
.use-grid, .card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
.use-card, .card, .step {
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(16, 37, 57, .62);
  padding: 21px;
}
.use-card h3, .card h3, .step h3 { margin-bottom: 8px; }
.use-card p, .card p, .step p { color: var(--muted); font-size: .91rem; }
.card .tag { display: inline-block; margin-bottom: 13px; color: var(--green-light); font-family: "IBM Plex Mono", monospace; font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; }
.card ul { margin-top: 14px; padding-left: 18px; color: var(--muted); font-size: .88rem; }
.card li + li { margin-top: 5px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step .num { display: block; margin-bottom: 21px; color: var(--gold); font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .14em; }
.check-list { list-style: none; display: grid; gap: 13px; margin-top: 24px; }
.check-list li { display: grid; grid-template-columns: 26px 1fr; gap: 10px; align-items: flex-start; color: var(--muted); }
.check-list .tick { color: var(--green-light); font-weight: 800; }
.check-list strong { display: block; color: var(--text); }

.form-sect { padding: 88px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.form-card { max-width: 850px; margin: 0 auto; padding: 36px; border: 1px solid var(--line-strong); border-radius: 17px; background: var(--ink); box-shadow: 0 28px 74px rgba(0, 0, 0, .35); }
.form-alert { margin-bottom: 24px; padding: 16px 17px; border: 1px solid rgba(242, 208, 107, .28); border-radius: 10px; background: rgba(212, 175, 55, .07); color: #cbd8e5; font-size: .88rem; }
.fs + .fs { margin-top: 29px; padding-top: 29px; border-top: 1px solid var(--line); }
.fs-title { margin-bottom: 16px; color: var(--gold-light); font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.frow + .frow { margin-top: 15px; }
.fg label { display: block; margin-bottom: 7px; color: #c8d5e2; font-size: .82rem; font-weight: 600; }
.fg input, .fg select, .fg textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: .94rem;
}
.fg textarea { min-height: 110px; resize: vertical; }
.fg input:focus, .fg select:focus, .fg textarea:focus { outline: 2px solid rgba(242, 208, 107, .55); outline-offset: 1px; border-color: var(--gold); }
.consent { display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: flex-start; margin: 26px 0 20px; color: var(--muted); font-size: .78rem; }
.consent input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--gold); }
.consent a { color: var(--gold-light); }
.submit-btn { width: 100%; }
.submit-btn:disabled { cursor: wait; filter: grayscale(.3); opacity: .72; }
.spinner { display: none; width: 17px; height: 17px; border: 2px solid rgba(5, 14, 25, .35); border-top-color: #071321; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.msg { display: none; margin-bottom: 18px; padding: 13px 15px; border-radius: 9px; }
.msg-err { border: 1px solid rgba(255, 181, 168, .38); background: rgba(255, 181, 168, .08); color: var(--danger); }

.faq { max-width: 870px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 21px 42px 21px 0; cursor: pointer; font-family: "Archivo", sans-serif; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 18px; color: var(--gold); font-size: 1.35rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 42px 21px 0; color: var(--muted); }

.info-page { padding: 64px 0 86px; }
.info-shell { max-width: 820px; }
.info-shell h1 { margin-bottom: 12px; font-size: clamp(2.2rem, 5vw, 3.5rem); }
.info-shell h2 { margin: 42px 0 13px; font-size: 1.35rem; }
.info-shell p, .info-shell li { color: var(--muted); }
.info-shell p + p { margin-top: 13px; }
.info-shell ul { margin: 14px 0 0 22px; }
.info-shell li + li { margin-top: 7px; }
.updated { margin: 8px 0 32px; color: var(--gold-light); font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; }
.identity-card { margin: 28px 0; padding: 24px; border: 1px solid var(--line-strong); border-radius: 13px; background: var(--surface); }
.identity-card dl { display: grid; grid-template-columns: 155px 1fr; gap: 9px 18px; }
.identity-card dt { color: var(--muted); }
.identity-card dd { color: var(--text); }
.identity-card a { color: var(--gold-light); }
.notice { margin: 26px 0; padding: 18px; border-left: 3px solid var(--gold); background: var(--surface); color: #cbd8e5; }

/* Educational guide library */
.guide-hero { padding: 68px 0 52px; border-bottom: 1px solid var(--line); background: radial-gradient(700px 380px at 82% 10%, rgba(24, 201, 143, .10), transparent 65%); }
.guide-hero .lede { margin-top: 18px; }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.guide-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(16, 37, 57, .62);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.guide-card:hover { transform: translateY(-3px); border-color: rgba(242, 208, 107, .5); background: var(--surface-2); }
.guide-card .tag { margin-bottom: 14px; color: var(--green-light); font-family: "IBM Plex Mono", monospace; font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; }
.guide-card h3 { margin-bottom: 11px; }
.guide-card p { color: var(--muted); font-size: .9rem; }
.guide-card .read-more { margin-top: auto; padding-top: 20px; color: var(--gold-light); font-family: "Archivo", sans-serif; font-size: .86rem; font-weight: 700; }
.breadcrumbs { margin-bottom: 25px; color: var(--muted); font-size: .78rem; }
.breadcrumbs a { color: var(--gold-light); text-decoration: none; }
.guide-page { padding: 58px 0 90px; }
.article-shell { max-width: 860px; }
.article-shell > h1 { max-width: 16ch; font-size: clamp(2.4rem, 5vw, 4rem); }
.article-shell > .lede { margin-top: 18px; max-width: 68ch; }
.guide-meta { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 24px 0 30px; color: var(--muted); font-family: "IBM Plex Mono", monospace; font-size: .7rem; letter-spacing: .04em; }
.toc { margin: 30px 0; padding: 22px 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.toc strong { display: block; margin-bottom: 10px; color: var(--gold-light); font-family: "Archivo", sans-serif; }
.toc ol { display: grid; gap: 6px; margin-left: 21px; color: var(--muted); }
.toc a { color: inherit; }
.article-body h2 { margin: 48px 0 14px; font-size: clamp(1.55rem, 3vw, 2rem); }
.article-body h3 { margin: 28px 0 10px; font-size: 1.15rem; }
.article-body p, .article-body li { color: #b6c7d7; }
.article-body p + p { margin-top: 15px; }
.article-body ul, .article-body ol { margin: 15px 0 0 23px; }
.article-body li + li { margin-top: 8px; }
.article-body a { color: var(--gold-light); }
.article-callout { margin: 26px 0; padding: 20px 22px; border: 1px solid rgba(242, 208, 107, .25); border-left: 3px solid var(--gold); border-radius: 0 11px 11px 0; background: rgba(212, 175, 55, .06); color: #cbd8e5; }
.article-callout.green { border-color: rgba(80, 228, 176, .24); border-left-color: var(--green); background: rgba(24, 201, 143, .06); }
.compare-table { width: 100%; margin: 24px 0; border-collapse: collapse; font-size: .88rem; }
.compare-table th, .compare-table td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare-table th { background: var(--surface); color: var(--gold-light); font-family: "Archivo", sans-serif; }
.compare-table td { color: #b6c7d7; }
.source-list { margin-top: 35px; padding-top: 25px; border-top: 1px solid var(--line); }
.source-list h2 { margin-top: 0; }
.related-guides { margin-top: 58px; padding-top: 35px; border-top: 1px solid var(--line); }
.related-guides h2 { margin: 0 0 20px; }
.related-guides .guide-grid { grid-template-columns: repeat(2, 1fr); }
.guide-cta { margin-top: 40px; padding: 28px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); }
.guide-cta p { margin: 10px 0 18px; color: var(--muted); }

/* Curated programmatic industry library */
.industry-hero { padding: 58px 0; border-bottom: 1px solid var(--line); background: radial-gradient(700px 420px at 82% 20%, rgba(212, 175, 55, .09), transparent 68%); }
.industry-hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 52px; align-items: center; }
.industry-hero h1 { max-width: 13ch; font-size: clamp(2.4rem, 5vw, 4rem); }
.industry-hero .lede { margin-top: 18px; }
.industry-photo { overflow: hidden; border: 1px solid var(--line-strong); border-radius: 16px; background: var(--surface); box-shadow: 0 26px 70px rgba(0, 0, 0, .4); }
.industry-photo img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.industry-photo figcaption { padding: 10px 13px; color: var(--muted); font-size: .7rem; }
.industry-needs { margin-top: 22px; }
.industry-needs .use-card h3 { margin: 0 0 8px; }
.industry-index-grid { grid-template-columns: repeat(3, 1fr); }
.industry-card h3 { font-size: 1.08rem; line-height: 1.2; }
.visual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.visual-card { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--ink); }
.visual-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top center; }
.visual-card figcaption { min-height: 72px; padding: 15px 17px; color: var(--muted); font-size: .82rem; }
.media-note { margin-top: 9px; color: var(--muted); font-size: .7rem; }

.site-foot { padding: 48px 0 34px; background: var(--surface); }
.foot-grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr; gap: 42px; }
.site-foot p, .site-foot a { color: var(--muted); font-size: .82rem; }
.site-foot p { margin-top: 16px; }
.foot-col h4 { margin-bottom: 12px; color: var(--gold-light); font-family: "IBM Plex Mono", monospace; font-size: .66rem; letter-spacing: .13em; text-transform: uppercase; }
.foot-col a { display: block; margin: 7px 0; text-decoration: none; }
.foot-col a:hover { color: var(--text); }
.foot-disc { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); color: #8198ae; font-size: .76rem; }

.rv { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.rv.in { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--gold-light); outline-offset: 3px; }

@media (max-width: 920px) {
  .head-nav a:not(.btn) { display: none; }
  .hero { padding-top: 52px; }
  .hero-grid, .split { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .hero-chip { left: 12px; bottom: 12px; }
  .steps { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid > :first-child { grid-column: 1 / -1; }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-hero-grid { grid-template-columns: 1fr; }
  .industry-index-grid, .visual-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .wrap, .head-in { width: min(100% - 34px, var(--max)); }
  .rail-in { grid-template-columns: 1fr 1fr; }
  .rail-cell:nth-child(2) { border-right: 0; }
  .rail-cell:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .use-grid, .card-grid, .frow { grid-template-columns: 1fr; }
  .frow + .frow { margin-top: 15px; }
  .form-card { padding: 25px 18px; }
  .disclosure-in { grid-template-columns: 1fr; gap: 10px; }
  .disclosure-badge { width: max-content; }
  .identity-card dl { grid-template-columns: 1fr; gap: 2px; }
  .identity-card dd + dt { margin-top: 10px; }
  .guide-grid, .related-guides .guide-grid { grid-template-columns: 1fr; }
  .compare-table { display: block; overflow-x: auto; }
  .industry-index-grid, .visual-grid { grid-template-columns: 1fr; }
}

@media (max-width: 500px) {
  .head-in { min-height: 64px; }
  .head-nav .btn { padding: 9px 12px; }
  .brand-name { font-size: .88rem; }
  .brand-sub { font-size: .53rem; }
  .hero-cta .btn { width: 100%; }
  .rail-in { grid-template-columns: 1fr; }
  .rail-cell { min-height: auto; padding: 18px 0 !important; border-right: 0; border-bottom: 1px solid var(--line); }
  .rail-cell:last-child { border-bottom: 0; }
  .foot-grid { grid-template-columns: 1fr; }
  .foot-grid > :first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .rv { opacity: 1; transform: none; }
}