/* Mevocopter Aerospace — site stylesheet (homepage v2, 2026-09).
   The older article pages still use bootstrap.min.css + style.css; this file is independent of them. */

/* Self-hosted fonts (Latin subset). Archivo is a variable font with weight and width axes. */
@font-face { font-family: 'Archivo'; font-style: normal; font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; src: url(../fonts/archivo-latin-standard-normal.woff2) format('woff2-variations'), url(../fonts/archivo-latin-standard-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 500; font-display: swap; src: url(../fonts/ibm-plex-sans-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2'); }

:root {
  --ink: #0E1A26;
  --ink-2: #122232;
  --ink-line: #22313F;
  --ink-line-2: #2B3B4B;
  --ink-line-3: #4A5B6C;
  --ink-muted: #8FA0B0;
  --ink-text-2: #B8C2CC;
  --ink-nav: #D5DCE3;
  --paper: #F5F3EE;
  --paper-2: #ECE8DF;
  --card: #FCFBF8;
  --line: #DAD5CA;
  --text: #1B2530;
  --muted: #3E4955;
  --muted-2: #505B66;
  --bronze: #8A5A00;
  --bronze-dark: #5E3D00;
  --accent: #F0A922;
  --footer: #0A141E;
  --display: 'Archivo', 'Arial Narrow', 'Helvetica Neue', Arial, sans-serif;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --container: 1248px;
  --gutter: 24px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--bronze); text-underline-offset: 3px; }
a:hover { color: var(--bronze-dark); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 700; line-height: 1.1; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure, blockquote { margin: 0; }
[id] { scroll-margin-top: 24px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  padding: 10px 14px; background: var(--accent); color: var(--ink); font-weight: 600; border-radius: 3px;
}
.skip-link:focus { top: 16px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
@media (min-width: 1024px) { :root { --gutter: 48px; } }

.eyebrow {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bronze);
}
.eyebrow--light { color: var(--accent); }
.eyebrow--muted { color: var(--ink-muted); }
.tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bronze); }

.nb { white-space: nowrap; }
.h-display { font-stretch: 108%; }
.h-tight { font-stretch: 104%; }
.h1 { font-size: clamp(34px, 4.2vw, 56px); line-height: 1.05; letter-spacing: -0.01em; }
.h2 { font-size: clamp(28px, 3.2vw, 44px); }
.h2--sm { font-size: clamp(26px, 2.8vw, 40px); }
.h3 { font-size: 23px; line-height: 1.2; }
.lead { font-size: clamp(17px, 1.5vw, 20px); line-height: 1.55; }

.section { padding: 96px 0 88px; }
.section--tight { padding: 72px 0; }
.section--dark { background: var(--ink); color: var(--paper); }
.section--alt { background: var(--paper-2); }
.section__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px 64px; margin-bottom: 40px; }
.section__head > div { display: flex; flex-direction: column; gap: 16px; max-width: 760px; }
.section__head .lead--aside { max-width: 380px; font-size: 16px; color: var(--muted); }
.section--dark .section__head .lead--aside { color: var(--ink-text-2); }
@media (max-width: 900px) {
  .section { padding: 64px 0 56px; }
  .section__head { flex-direction: column; align-items: flex-start; gap: 20px; margin-bottom: 28px; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 26px; border-radius: 3px; font-weight: 600; font-size: 16px;
  text-decoration: none; border: 1.5px solid transparent; white-space: nowrap;
}
.btn--primary { background: var(--accent); color: var(--ink); }
.btn--primary:hover { background: #F6B84A; color: var(--ink); }
.btn--ghost { border-color: var(--ink-line-3); color: var(--paper); }
.btn--ghost:hover { border-color: var(--paper); color: var(--paper); }
.btn--outline { border-color: var(--text); color: var(--text); }
.btn--outline:hover { background: var(--text); color: var(--paper); }
.btn--lg { min-height: 56px; font-size: 17px; }
.link-plain { color: var(--paper); font-size: 17px; }
.link-plain:hover { color: var(--accent); }
.link-more { font-weight: 600; font-size: 16px; }
.section--dark .link-more { color: var(--paper); }
.section--dark .link-more:hover { color: var(--accent); }

/* Header */
.site-header { background: var(--ink); color: var(--paper); border-bottom: 1px solid var(--ink-line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: 84px; position: relative; }
.brand { display: flex; align-items: center; gap: 14px; color: var(--paper); text-decoration: none; }
.brand__mark { width: 64px; height: 34px; flex: none; }
.brand__word { font-family: var(--display); font-stretch: 125%; font-weight: 700; font-size: 15px; line-height: 1.15; letter-spacing: 0.06em; }
.nav-toggle {
  display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
  background: transparent; border: 1px solid #3A4B5C; border-radius: 3px; color: var(--paper); cursor: pointer;
}
.site-nav ul { display: flex; align-items: center; gap: 36px; }
.site-nav a { color: var(--ink-nav); text-decoration: none; font-size: 15px; }
.site-nav a:hover { color: var(--paper); }
.site-nav .btn { min-height: 44px; padding: 0 20px; font-size: 15px; }
@media (max-width: 900px) {
  .site-header .container { min-height: 68px; }
  .brand__mark { width: 46px; height: 24px; }
  .brand__word { font-size: 12px; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; z-index: 50; background: var(--ink); border-bottom: 1px solid var(--ink-line); padding: 8px var(--gutter) 20px; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav li a:not(.btn) { display: flex; align-items: center; min-height: 48px; font-size: 17px; border-bottom: 1px solid var(--ink-line); }
  .site-nav .btn { margin-top: 16px; width: 100%; }
}

/* Hero */
.hero { position: relative; background: var(--ink); color: var(--paper); padding: 80px 0 72px; overflow: hidden; }
.hero__hex { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 520px; gap: 72px; align-items: start; }
.hero__copy { display: flex; flex-direction: column; gap: 26px; padding-top: 12px; }
.hero__copy .lead { max-width: 620px; color: var(--ink-text-2); }
.hero__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px 28px; margin-top: 10px; }
.figure { display: flex; flex-direction: column; border: 1px solid var(--ink-line-2); background: rgba(18, 34, 50, 0.85); border-radius: 4px; }
.figure img { width: calc(100% - 32px); margin: 16px; border-radius: 3px; }
.figure figcaption { padding: 0 16px 16px; font-size: 13px; line-height: 1.5; color: var(--ink-muted); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink-line-2); }
.stats > div { padding: 18px 16px; display: flex; flex-direction: column; gap: 6px; }
.stats > div + div { border-left: 1px solid var(--ink-line-2); }
.stat__n { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: 34px; line-height: 1; color: var(--paper); }
.stat__l { font-family: var(--mono); font-size: 11px; line-height: 1.45; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }
@media (max-width: 1100px) { .hero__grid { grid-template-columns: minmax(0, 1fr) 440px; gap: 48px; } }
@media (max-width: 900px) {
  .hero { padding: 48px 0 40px; }
  .hero__grid { grid-template-columns: 1fr; gap: 32px; }
  .hero__copy { padding-top: 0; gap: 20px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .link-plain { text-align: center; }
  .figure img { width: calc(100% - 24px); margin: 12px; }
  .figure figcaption { padding: 0 12px 12px; font-size: 12px; }
  .stats > div { padding: 14px 10px; }
  .stat__n { font-size: 24px; }
  .stat__l { font-size: 9px; letter-spacing: 0.06em; }
}

/* Proof strip */
.proof { padding: 36px 0; border-bottom: 1px solid var(--line); }
.proof .container { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 48px; }
.proof__item { display: flex; flex-direction: column; gap: 10px; }
.proof__item .eyebrow { font-size: 11px; }
.proof__item p { font-size: 15px; }
@media (max-width: 900px) { .proof .container { grid-template-columns: 1fr; } .proof__item p { font-size: 14px; } }

/* Services */
.services__list li {
  display: grid; grid-template-columns: 110px 400px minmax(0, 1fr); gap: 32px;
  padding: 30px 0; border-top: 1px solid var(--line);
}
.services__list li:last-child { border-bottom: 1px solid var(--line); }
.services__num { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: 40px; line-height: 1; color: var(--bronze); }
.services__title { display: flex; flex-direction: column; gap: 8px; }
.services__list p { font-size: 16px; color: var(--muted); }
.services__how { display: flex; align-items: baseline; gap: 24px; margin-top: 40px; font-size: 15px; color: var(--muted); }
.services__how .tag { flex: none; }
@media (max-width: 1100px) { .services__list li { grid-template-columns: 90px 320px minmax(0, 1fr); gap: 24px; } }
@media (max-width: 900px) {
  .services__list li { grid-template-columns: 1fr; gap: 10px; padding: 22px 0; }
  .services__num { font-size: 28px; }
  .h3 { font-size: 21px; }
  .services__how { flex-direction: column; gap: 8px; margin-top: 24px; font-size: 14px; }
}

/* Why */
.why__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.why__grid > div { display: flex; flex-direction: column; gap: 12px; padding-top: 20px; border-top: 2px solid var(--text); }
.why__grid h3 { font-size: 22px; }
.why__grid p { font-size: 16px; color: var(--muted); }
@media (max-width: 900px) { .why__grid { grid-template-columns: 1fr; gap: 24px; } .why__grid h3 { font-size: 20px; } }

/* Research */
.featured { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.card {
  display: flex; flex-direction: column; gap: 14px; padding: 32px;
  background: var(--ink-2); border: 1px solid var(--ink-line-2); border-radius: 4px; color: var(--paper); text-decoration: none;
}
.card:hover { border-color: var(--ink-line-3); color: var(--paper); }
.card h3 { font-size: 24px; line-height: 1.2; }
.card__meta { font-size: 14px; color: var(--ink-muted); }
.card p { font-size: 16px; color: var(--ink-text-2); }
.card__more { margin-top: auto; padding-top: 6px; font-size: 15px; font-weight: 600; color: var(--accent); }
.card__img { border-radius: 3px; border: 1px solid var(--ink-line-2); }
.card__stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding-top: 16px; border-top: 1px solid var(--ink-line-2); }
.card__stats > div { display: flex; flex-direction: column; gap: 6px; }
.card__stats .stat__n { font-size: 28px; }
.pubs { margin-top: 24px; }
.pubs li { display: grid; grid-template-columns: 260px minmax(0, 1fr) 100px; gap: 32px; align-items: baseline; padding: 20px 0; border-top: 1px solid var(--ink-line); }
.pubs li:last-child { border-bottom: 1px solid var(--ink-line); }
.pubs__venue { font-family: var(--mono); font-size: 12px; line-height: 1.5; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-muted); }
.pubs__title { font-size: 17px; line-height: 1.4; }
.pubs a { color: var(--accent); font-weight: 600; text-decoration: none; text-align: right; }
.pubs a:hover { color: var(--paper); }
@media (max-width: 900px) {
  .featured { grid-template-columns: 1fr; }
  .card { padding: 22px; }
  .card h3 { font-size: 21px; }
  .card__stats .stat__n { font-size: 22px; }
  .pubs li { grid-template-columns: 1fr; gap: 8px; padding: 18px 0; }
  .pubs a { text-align: left; }
}

/* About */
.about__grid { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 80px; align-items: start; }
.about__aside { display: flex; flex-direction: column; gap: 20px; }
.about__photo { width: 360px; height: 360px; object-fit: cover; border-radius: 4px; }
.about__quote { padding-top: 20px; border-top: 1px solid var(--line); font-size: 17px; line-height: 1.55; color: var(--muted); font-style: italic; }
.about__cite { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-2); }
.about__cite a { color: var(--bronze); text-decoration: none; border-bottom: 1px solid var(--line); }
.about__cite a:hover { color: var(--bronze-dark); border-color: var(--bronze); }
.about__body { display: flex; flex-direction: column; gap: 24px; max-width: 760px; }
.about__body > p { font-size: 18px; color: var(--muted); }
.creds { display: flex; flex-direction: column; gap: 16px; padding-top: 24px; border-top: 1px solid var(--line); }
.creds__name { font-size: 20px; font-weight: 600; }
.creds__role { font-size: 16px; color: var(--muted-2); }
.bullets { display: flex; flex-direction: column; gap: 10px; }
.bullets li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; line-height: 1.5; }
.bullets li::before { content: ""; flex: none; width: 8px; height: 8px; margin-top: 8px; background: var(--bronze); }
.links { display: flex; flex-wrap: wrap; gap: 12px 28px; font-size: 16px; font-weight: 600; }
@media (max-width: 1100px) { .about__grid { grid-template-columns: 300px minmax(0, 1fr); gap: 48px; } .about__photo { width: 300px; height: 300px; } }
@media (max-width: 900px) {
  .about__grid { grid-template-columns: 1fr; gap: 24px; }
  .about__photo { width: 100%; max-width: 360px; height: auto; aspect-ratio: 1 / 1; }
  .about__body > p { font-size: 16px; }
  .bullets li { font-size: 15px; }
}

/* Partnerships */
.partners .container { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px 64px; align-items: center; }
.partners__body { display: flex; flex-direction: column; gap: 14px; max-width: 820px; }
.partners__body p { color: var(--muted); }
@media (max-width: 900px) { .partners .container { grid-template-columns: 1fr; } .partners .btn { width: 100%; } }

/* Contact */
.contact__grid { display: grid; grid-template-columns: minmax(0, 1fr) 440px; gap: 48px 96px; align-items: start; }
.contact__copy { display: flex; flex-direction: column; gap: 24px; }
.contact__copy .lead { max-width: 620px; color: var(--ink-text-2); }
.contact__actions { display: flex; flex-direction: column; gap: 16px; padding-top: 8px; }
.contact__details { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; font-family: var(--mono); font-size: 13px; color: var(--ink-muted); }
@media (max-width: 900px) { .contact__grid { grid-template-columns: 1fr; gap: 24px; } .contact__details { font-size: 12px; } }

/* Footer */
.site-footer { background: var(--footer); color: var(--ink-muted); padding: 56px 0; }
.site-footer__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 32px 48px; }
.site-footer__brand { display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.site-footer__brand strong { font-family: var(--display); font-stretch: 125%; font-weight: 700; font-size: 14px; letter-spacing: 0.06em; color: var(--paper); }
.site-footer nav ul { display: flex; flex-wrap: wrap; gap: 12px 28px; font-size: 14px; }
.site-footer nav a { color: var(--ink-nav); text-decoration: none; }
.site-footer nav a:hover { color: var(--paper); }
.site-footer__bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid #1E2C3A; font-size: 13px; }
@media (max-width: 900px) {
  .site-footer { padding: 36px 0; }
  .site-footer__top { flex-direction: column; }
  .site-footer nav ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 16px; }
  .site-footer nav a { display: flex; align-items: center; min-height: 44px; font-size: 15px; }
}

/* Simple text pages (privacy) */
.page { padding: 72px 0 96px; }
.page .container { max-width: 760px; }
.page h1 { font-size: clamp(32px, 4vw, 44px); margin-bottom: 8px; }
.page h2 { font-size: 24px; margin: 36px 0 12px; }
.page p, .page li { color: var(--muted); }
.page ul { list-style: disc; padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.page .updated { font-family: var(--mono); font-size: 13px; color: var(--muted-2); margin-bottom: 28px; }

/* ---------- Guides, Insights and Research ---------- */
.article-head { position: relative; background: var(--ink); color: var(--paper); padding: 72px 0 64px; overflow: hidden; }
.article-head .container { position: relative; max-width: 960px; display: flex; flex-direction: column; gap: 22px; }
.article-head .h1 { font-size: clamp(32px, 3.8vw, 50px); }
.article-head .dek { max-width: 760px; font-size: clamp(17px, 1.4vw, 20px); line-height: 1.55; color: var(--ink-text-2); }
.byline { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; font-family: var(--mono); font-size: 13px; color: var(--ink-muted); }
.byline a { color: var(--paper); text-decoration: none; }
.byline a:hover { color: var(--accent); }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-muted); }
.crumbs a { color: var(--ink-nav); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs span::before { content: "/"; margin-right: 8px; color: var(--ink-line-3); }
.crumbs span:first-child::before { content: none; margin: 0; }

.article { padding: 56px 0 96px; }
.article .container { max-width: 960px; display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 64px; align-items: start; }
.article__body { max-width: 680px; min-width: 0; }
.article__body > * + * { margin-top: 20px; }
.article__body h2 { font-size: clamp(24px, 2.6vw, 32px); margin-top: 52px; line-height: 1.15; scroll-margin-top: 24px; }
.article__body h3 { font-size: 21px; margin-top: 34px; line-height: 1.25; }
.article__body p, .article__body li { color: var(--muted); }
.article__body strong { color: var(--text); }
.article__body ul, .article__body ol { padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.article__body ul { list-style: disc; }
.article__body ol { list-style: decimal; }
.article__body li::marker { color: var(--bronze); }
.article__body figure { margin: 28px 0; }
.article__body figcaption { margin-top: 8px; font-size: 14px; line-height: 1.5; color: var(--muted-2); }
.article__body img { border: 1px solid var(--line); border-radius: 4px; }
.article__body table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.45; margin: 28px 0; }
.article__body th, .article__body td { padding: 10px 12px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; color: var(--muted); }
.article__body th { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text); background: var(--paper-2); }
.article__body tr:last-child td { border-bottom: 1px solid var(--line); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.article__body code { font-family: var(--mono); font-size: 0.92em; background: var(--paper-2); padding: 1px 6px; border-radius: 3px; }

.takeaways { padding: 24px 28px; background: var(--paper-2); border-left: 3px solid var(--bronze); border-radius: 0 4px 4px 0; }
.takeaways .eyebrow { margin-bottom: 12px; }
.takeaways ul { gap: 10px; }
.callout { padding: 20px 24px; border: 1px solid var(--line); border-radius: 4px; background: var(--card); }
.callout--dark { background: var(--ink); border-color: var(--ink-line-2); color: var(--paper); }
.callout--dark p, .callout--dark li { color: var(--ink-text-2); }
.callout--dark strong, .callout--dark h3 { color: var(--paper); }
.callout--dark a { color: var(--accent); }
.callout .eyebrow { margin-bottom: 10px; }
.callout h3 { margin-top: 0; }
.evidence { padding: 22px 26px; background: var(--ink); color: var(--paper); border-radius: 4px; display: flex; flex-direction: column; gap: 12px; }
.evidence .eyebrow { color: var(--accent); }
.evidence p, .evidence li { color: var(--ink-text-2); }
.evidence strong { color: var(--paper); }
.evidence a { color: var(--accent); }
.evidence .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink-line-2); margin-top: 6px; }
.evidence .stats > div { padding: 14px 12px 0; }
.evidence .stats > div + div { border-left: 1px solid var(--ink-line-2); }
.evidence .stat__n { font-size: 26px; }

.help { margin-top: 56px; padding: 28px 32px; background: var(--paper-2); border-radius: 4px; display: flex; flex-direction: column; gap: 14px; }
.help h3 { margin-top: 0; font-size: 22px; }
.help .btn { align-self: flex-start; }
.author { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 20px; align-items: start; }
.author img { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; border: 0; }
.author p { font-size: 15px; }
.author .author__name { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.refs { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.refs h2 { font-size: 20px; margin-top: 0; }
.refs ol { font-size: 14px; line-height: 1.5; gap: 8px; }
.refs ol li { word-break: break-word; }

.toc { position: sticky; top: 24px; display: flex; flex-direction: column; gap: 14px; padding-top: 6px; }
.toc .eyebrow { font-size: 11px; }
.toc ol { display: flex; flex-direction: column; gap: 8px; font-size: 14px; line-height: 1.4; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--bronze); }
.toc__related { margin-top: 12px; padding-top: 16px; border-top: 1px solid var(--line); }
.toc__related a { display: block; font-size: 14px; line-height: 1.4; color: var(--bronze); text-decoration: none; margin-top: 8px; }
@media (max-width: 900px) {
  .article-head { padding: 48px 0 40px; }
  .article { padding: 36px 0 64px; }
  .article .container { grid-template-columns: 1fr; gap: 32px; }
  .toc { position: static; order: -1; padding: 18px 20px; border: 1px solid var(--line); border-radius: 4px; }
  .toc--collapsible { gap: 0; padding: 4px 20px; }
  .toc--collapsible > ol, .toc--collapsible .toc__related { display: none; }
  .toc--collapsible.is-open > ol { display: flex; margin-top: 14px; }
  .toc--collapsible.is-open .toc__related { display: flex; margin-top: 14px; }
  .toc--collapsible.is-open { padding-bottom: 18px; }
  .article__body h2 { margin-top: 40px; }
  .author { grid-template-columns: 64px minmax(0, 1fr); gap: 14px; }
  .author img { width: 64px; height: 64px; }
}

/* Insights and Research index pages */
.index-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.index-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1100px) { .index-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.gcard {
  display: flex; flex-direction: column; gap: 12px; padding: 28px;
  background: var(--card); border: 1px solid var(--line); border-radius: 4px; color: var(--text); text-decoration: none;
}
.gcard:hover { border-color: var(--bronze); color: var(--text); }
.gcard h3 { font-size: 21px; line-height: 1.25; }
.gcard p { font-size: 15px; color: var(--muted); }
.gcard__meta { font-family: var(--mono); font-size: 12px; color: var(--muted-2); }
.gcard__more { margin-top: auto; padding-top: 6px; font-size: 15px; font-weight: 600; color: var(--bronze); }
.group { margin-top: 48px; }
.group > .eyebrow { margin-bottom: 8px; }
.group > h2 { font-size: clamp(24px, 2.6vw, 30px); margin-bottom: 20px; }
.pub { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 12px 32px; padding: 26px 0; border-top: 1px solid var(--line); }
.pub:last-child { border-bottom: 1px solid var(--line); }
.pub__venue { font-family: var(--mono); font-size: 12px; line-height: 1.5; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted-2); }
.pub h3 { font-size: 20px; line-height: 1.3; }
.pub__authors { font-size: 14px; color: var(--muted-2); margin-top: 6px; }
.pub p { font-size: 15px; color: var(--muted); margin-top: 10px; }
.pub__links { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 12px; font-size: 14px; font-weight: 600; }
.pub__note { font-size: 13px; color: var(--muted-2); margin-top: 8px; }
@media (max-width: 900px) {
  .index-grid, .index-grid--3 { grid-template-columns: 1fr; }
  .pub { grid-template-columns: 1fr; gap: 8px; padding: 20px 0; }
}

/* Guide FAQ */
.faq { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.faq h2 { margin-bottom: 8px; }
.faq__item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.faq__item:last-child { border-bottom: 0; }
.faq__item h3 { font-size: 19px; line-height: 1.3; margin-bottom: 8px; }
.faq__item p { color: var(--muted); }
/* Collapsible contents on phones */
.toc__toggle { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 44px; padding: 0; border: 0; background: none; font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bronze); cursor: pointer; text-align: left; }
.toc__toggle span { font-size: 14px; transition: transform 0.2s; }
.toc.is-open .toc__toggle span { transform: rotate(180deg); }
@media (min-width: 901px) { .toc__toggle { min-height: 0; cursor: default; } .toc__toggle span { display: none; } }