:root {
  --ink: #111817;
  --ink-soft: #1a2321;
  --paper: #f2efe7;
  --paper-deep: #e5dfd2;
  --white: #fffdf8;
  --muted: #66706d;
  --metadata: #a95635;
  --line: rgba(17, 24, 23, 0.16);
  --line-light: rgba(255, 253, 248, 0.2);
  --copper: #b75531;
  --copper-bright: #e07b4f;
  --sage: #a9b8aa;
  --max-width: 1240px;
  --header-height: 82px;
  --font-sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea { font: inherit; }
::selection { background: var(--copper); color: var(--white); }

.shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  min-height: var(--header-height);
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, min-height 220ms ease;
}

.site-header.is-scrolled {
  min-height: 68px;
  background: rgba(16, 24, 23, 0.94);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: inherit;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.brand-name { font-size: 14px; font-weight: 600; letter-spacing: 0.01em; }
.primary-nav { display: flex; align-items: center; gap: 20px; }

.primary-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: color 160ms ease;
}

.primary-nav a:not(.nav-contact)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 1px;
  background: var(--copper-bright);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible { color: #fff; }
.primary-nav a:hover::after,
.primary-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }

.nav-contact {
  padding: 9px 15px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 2px;
}

.nav-toggle { display: none; }

.hero {
  position: relative;
  min-height: max(760px, 100svh);
  display: grid;
  align-items: end;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero-image,
.hero-scrim { position: absolute; z-index: -2; inset: 0; }

.hero-image {
  background-image: url("../images/hero-samiul.jpg");
  background-position: 62% center;
  background-size: cover;
  transform: scale(1.015);
}

.hero-scrim {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(8, 14, 13, 0.97) 0%, rgba(8, 14, 13, 0.78) 43%, rgba(8, 14, 13, 0.16) 76%),
    linear-gradient(0deg, rgba(8, 14, 13, 0.78) 0%, transparent 45%);
}

.hero-layout {
  min-height: inherit;
  padding-block: 172px 105px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.55fr);
  align-items: end;
  gap: clamp(48px, 8vw, 120px);
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--copper-bright);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 870px;
  margin: 0;
  font-size: clamp(48px, 6.2vw, 88px);
  font-weight: 500;
  letter-spacing: -0.052em;
  line-height: 0.99;
}

.hero h1 em {
  color: var(--sage);
  font-family: var(--font-serif);
  font-weight: 400;
}

.hero-intro {
  max-width: 680px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.65;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 38px; }

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--copper); color: #fff; }
.button-primary:hover { background: var(--copper-bright); }
.button-quiet { border-color: rgba(255, 255, 255, 0.36); color: #fff; }
.button-quiet:hover { border-color: #fff; }

.affiliation-card {
  padding: 25px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(15, 23, 22, 0.7);
  backdrop-filter: blur(12px);
}

.status { display: flex; align-items: center; gap: 9px; color: var(--sage); font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.status span { width: 7px; height: 7px; border-radius: 50%; background: #86c991; box-shadow: 0 0 0 5px rgba(134, 201, 145, 0.1); }
.affiliation-role { margin: 26px 0 13px; font-family: var(--font-serif); font-size: 25px; line-height: 1.18; }
.affiliation-card > p:not(.affiliation-role) { margin: 0; color: rgba(224, 123, 79, .9); font-size: 13px; line-height: 1.55; }
.affiliation-meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 25px; padding-top: 15px; border-top: 1px solid var(--line-light); color: rgba(224, 123, 79, .78); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }

.scroll-cue {
  position: absolute;
  right: max(24px, calc((100vw - var(--max-width)) / 2));
  bottom: 30px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-decoration: none;
  text-transform: uppercase;
}

.scroll-cue i { position: relative; width: 42px; height: 1px; overflow: hidden; background: rgba(255, 255, 255, 0.28); }
.scroll-cue i::after { content: ""; position: absolute; inset: 0; background: var(--copper-bright); transform: translateX(-100%); animation: scroll-cue 2.4s ease-in-out infinite; }
@keyframes scroll-cue { 45%, 55% { transform: translateX(0); } 100% { transform: translateX(100%); } }

.section { padding-block: clamp(86px, 10vw, 150px); }
.research-section { background: var(--paper); }

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 0.45fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 58px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.section-heading .eyebrow { margin-bottom: 12px; }
.section-heading h2 { margin: 0; font-family: var(--font-serif); font-size: clamp(40px, 4.4vw, 60px); font-weight: 400; letter-spacing: -0.04em; line-height: 1; }
.section-heading > p { max-width: 480px; margin: 0; color: var(--muted); font-size: 15px; }
.section-heading-reverse { grid-template-columns: minmax(280px, .45fr) 1fr; }
.section-heading-reverse > div { grid-row: 1; grid-column: 2; }
.section-heading-reverse > p { grid-row: 1; grid-column: 1; }

.research-story {
  display: grid;
  grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr);
  gap: clamp(48px, 7vw, 94px);
  align-items: start;
  padding-block: clamp(60px, 8vw, 105px);
  border-top: 1px solid var(--line);
}

.research-story:first-of-type { margin-top: 8px; }
.research-story:last-of-type { border-bottom: 1px solid var(--line); }
.research-story-reverse { grid-template-columns: minmax(0, 1.18fr) minmax(320px, .82fr); }
.research-story-reverse .research-media { order: 2; }
.research-story-featured { grid-template-columns: minmax(350px, .92fr) minmax(0, 1.08fr); padding-block: clamp(52px, 6vw, 78px); }
.research-story-ias-chapter { display: block; padding-block: clamp(52px, 6vw, 78px); }

.ias-chapter-header { max-width: 1080px; }
.ias-chapter-header h3 { margin: 0; font-family: var(--font-serif); font-size: clamp(36px, 4.2vw, 52px); font-weight: 400; letter-spacing: -.04em; line-height: 1.06; }
.ias-chapter-header .research-lead { max-width: 920px; }
.ias-stage-flow { margin-top: 54px; padding-top: 48px; border-top: 1px solid var(--line); }
.ias-stage { display: grid; grid-template-columns: minmax(280px, .94fr) minmax(360px, 1.06fr); gap: clamp(46px, 7vw, 92px); align-items: center; }
.ias-stage .research-demo { width: 100%; max-width: 650px; justify-self: end; }
.ias-stage + .ias-stage { margin-top: clamp(54px, 7vw, 88px); }
.ias-stage-copy > span { color: var(--copper); font-size: 12px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
.ias-stage-copy h4 { margin: 10px 0 0; font-family: var(--font-serif); font-size: clamp(31px, 3.2vw, 43px); font-weight: 400; letter-spacing: -.035em; line-height: 1.06; }
.ias-stage-copy > p { margin: 15px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.ias-stage-copy .method-list { margin-top: 22px; }

.research-visual-pair {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 22px;
}

.research-demo { position: relative; margin: 0; overflow: hidden; background: #d7d5cf; }
.research-demo img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.research-demo-motion img { object-position: center; }
.demo-label { position: absolute; z-index: 1; top: 14px; left: 14px; display: flex; align-items: center; gap: 9px; padding: 7px 10px; background: rgba(17,24,23,.88); color: #fff; font-size: 12px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; backdrop-filter: blur(8px); }
.demo-label span { color: var(--copper-bright); }
.research-demo figcaption { padding: 11px 13px; background: var(--white); color: var(--muted); font-size: 11px; line-height: 1.45; }
.research-demo figcaption a { text-underline-offset: 3px; }

.research-media {
  position: sticky;
  top: 105px;
  margin: 0;
}

.research-media img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.research-media-motion img { aspect-ratio: 1 / 1; background: #fff; }
.research-media-contain { align-self: start; padding-top: 45px; }
.research-media-contain img { background: #fff; }

.research-media figcaption {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.research-media figcaption a { text-align: right; text-underline-offset: 3px; }
.research-meta { display: flex; justify-content: space-between; gap: 24px; align-items: center; margin-bottom: 25px; color: var(--metadata); font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }
.research-meta .index { color: var(--copper); font-size: 12px; }
.institution { margin: 0 0 14px; color: var(--metadata); font-size: 13px; font-weight: 500; letter-spacing: .045em; line-height: 1.5; text-transform: uppercase; }

.research-narrative h3 {
  max-width: 760px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(34px, 3.7vw, 50px);
  font-weight: 400;
  letter-spacing: -.04em;
  line-height: 1.04;
}

.research-question {
  margin-top: 36px;
  padding: 0 0 3px 22px;
  border-left: 2px solid var(--copper);
}

.research-question span,
.method-block > span,
.theory-heading {
  color: var(--copper);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.research-question p { max-width: 720px; margin: 7px 0 0; font-family: var(--font-serif); font-size: clamp(21px, 2vw, 28px); line-height: 1.35; }
.research-lead { max-width: 760px; margin: 32px 0 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
.research-lead strong { color: var(--ink); }

.research-focus-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 30px; border-block: 1px solid var(--line); }
.research-focus-grid > div { padding: 22px 22px 22px 0; }
.research-focus-grid > div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.research-focus-grid span { display: block; margin-bottom: 9px; color: var(--copper); font-size: 12px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
.research-focus-grid strong { display: block; font-family: var(--font-serif); font-size: 23px; font-weight: 400; line-height: 1.15; }
.research-focus-grid p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

.tracking-pipeline { margin: 38px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.tracking-pipeline li { display: grid; grid-template-columns: 42px 1fr; gap: 15px; padding-block: 17px; border-bottom: 1px solid var(--line); }
.tracking-pipeline > li > span { color: var(--copper); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.tracking-pipeline strong { display: block; font-family: var(--font-serif); font-size: 20px; font-weight: 400; }
.tracking-pipeline p { margin: 3px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

.theory-bridge { margin-top: 38px; padding-top: 24px; border-top: 1px solid var(--line); }
.theory-heading { margin: 0; }
.theory-models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 18px; }
.theory-models strong { display: block; font-family: var(--font-serif); font-size: 17px; font-weight: 400; line-height: 1.25; }
.theory-models span { display: block; margin-top: 6px; color: var(--muted); font-size: 11px; line-height: 1.45; }

.method-block { margin-top: 38px; }
.method-list { display: flex; flex-wrap: wrap; gap: 11px 24px; margin: 13px 0 0; padding: 0; list-style: none; }
.method-list li { padding-bottom: 4px; border-bottom: 1px solid rgba(200, 102, 61, .55); color: var(--ink); font-size: 12px; font-weight: 700; }
.method-list-prominent { gap: 10px; }
.method-list-prominent li { padding: 7px 10px; border: 1px solid rgba(183,85,49,.35); background: rgba(255,253,248,.5); font-size: 12px; line-height: 1.2; }
.research-measures { display: grid; grid-template-columns: repeat(3, 1fr); margin: 36px 0 0; border-block: 1px solid var(--line); }
.research-measures div { padding: 20px 17px 20px 0; }
.research-measures div + div { padding-left: 17px; border-left: 1px solid var(--line); }
.research-measures dt { font-family: var(--font-serif); font-size: 20px; line-height: 1.2; }
.research-measures dd { margin: 6px 0 0; color: var(--muted); font-size: 10px; line-height: 1.45; }
.research-outcome { margin: 31px 0 0; padding-left: 20px; border-left: 2px solid var(--copper); color: var(--muted); font-size: 14px; }
.research-outcome strong { color: var(--ink); }
.research-summary-list { margin: 32px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.research-summary-list li { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding-block: 17px; border-bottom: 1px solid var(--line); }
.research-summary-list strong { position: relative; padding-left: 18px; color: var(--ink); font-size: 13px; font-weight: 500; }
.research-summary-list strong::before { content: "—"; position: absolute; left: 0; color: var(--copper); }
.research-summary-list span { color: var(--muted); font-size: 14px; line-height: 1.55; }
.text-link { display: inline-flex; gap: 10px; align-items: center; margin-top: 24px; color: var(--ink); font-size: 12px; font-weight: 700; text-decoration-color: var(--copper); text-underline-offset: 5px; }

.experience-section { background: var(--paper-deep); }

.experience-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, .85fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: start;
}

.timeline { border-top: 1px solid var(--line); }

.timeline-item {
  display: grid;
  grid-template-columns: 155px 1fr;
  gap: 34px;
  padding-block: 42px;
  border-bottom: 1px solid var(--line);
}

.timeline-date {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--metadata);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.timeline-date strong {
  width: fit-content;
  padding: 4px 7px;
  background: rgba(97, 131, 105, .14);
  color: #55715b;
  font-size: 8px;
  letter-spacing: .13em;
}

.timeline-copy h3 {
  max-width: 680px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(27px, 3vw, 38px);
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1.12;
}

.timeline-copy > p:not(.institution) { max-width: 690px; margin: 17px 0 0; color: var(--muted); font-size: 14px; }
.compact-list { display: grid; gap: 7px; margin: 20px 0 0; padding: 0; color: var(--ink); font-size: 12px; list-style: none; }
.compact-list li { position: relative; padding-left: 18px; }
.compact-list li::before { content: ""; position: absolute; top: .73em; left: 0; width: 7px; height: 1px; background: var(--copper); }

.education-panel {
  position: sticky;
  top: 105px;
  padding: 34px;
  background: var(--white);
  box-shadow: 0 16px 45px rgba(32, 37, 33, .07);
}

.education-panel h3 { margin: 0; font-family: var(--font-serif); font-size: 36px; font-weight: 400; letter-spacing: -.03em; }
.education-list { margin: 27px 0 30px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.education-list li { padding: 22px 0; border-bottom: 1px solid var(--line); }
.education-list > li > span { display: block; margin-bottom: 7px; color: var(--metadata); font-size: 12px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
.education-list strong { display: block; font-size: 14px; }
.education-list p { margin: 5px 0 0; color: var(--metadata); font-size: 12px; line-height: 1.45; }
.degree-focus { display: grid; gap: 7px; margin-top: 15px; padding-left: 13px; border-left: 2px solid rgba(169, 86, 53, .55); }
.degree-focus > div { display: grid; grid-template-columns: 72px 1fr; gap: 10px; align-items: baseline; }
.degree-focus span { display: block; margin: 0; color: var(--copper); font-size: 10px; font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
.degree-focus strong { font-family: var(--font-sans); font-size: 13px; font-weight: 500; line-height: 1.35; }
.course-keywords { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.course-keywords span { margin: 0; padding: 5px 7px; border: 1px solid var(--line); color: var(--ink); font-size: 10px; font-weight: 650; letter-spacing: 0; line-height: 1.25; text-transform: none; }
.button-dark { width: 100%; justify-content: space-between; background: var(--ink); color: var(--white); }
.button-dark:hover { background: var(--copper); }

.expertise-section { overflow: hidden; background: var(--ink); color: var(--white); }
.section-heading-dark { border-bottom-color: var(--line-light); }
.section-heading-dark h2 em { color: var(--sage); font-weight: 400; }
.section-heading-dark > p { color: rgba(255,255,255,.6); }

.skills-list { border-top: 1px solid var(--line-light); }
.skill-row { display: grid; grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr); gap: clamp(38px, 7vw, 90px); padding-block: 36px; border-bottom: 1px solid var(--line-light); }
.skill-heading { display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: start; }
.skill-heading > span { padding-top: 6px; color: var(--copper-bright); font-size: 12px; font-weight: 500; letter-spacing: .08em; }
.skill-heading h3 { margin: 0; font-family: var(--font-serif); font-size: clamp(26px, 2.6vw, 36px); font-weight: 400; letter-spacing: -.025em; line-height: 1.12; }
.skill-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px 30px; align-content: start; margin: 0; padding: 5px 0 0; color: rgba(255,255,255,.82); font-size: 14px; list-style: none; }
.skill-list li { position: relative; padding-left: 17px; }
.skill-list li::before { content: "—"; position: absolute; left: 0; color: var(--copper-bright); }

.training-section { background: var(--paper); }
.training-list { border-top: 1px solid var(--line); }
.training-row { display: grid; grid-template-columns: 170px minmax(0, 1fr) 155px; gap: clamp(28px, 5vw, 70px); align-items: center; padding-block: 25px; border-bottom: 1px solid var(--line); }
.training-meta span,
.additional-training span,
.poster-copy > span,
.awards-list article > span { color: var(--metadata); font-size: 12px; font-weight: 500; letter-spacing: .07em; line-height: 1.45; text-transform: uppercase; }
.training-meta p { margin: 5px 0 0; color: var(--metadata); font-size: 12px; line-height: 1.45; }
.training-details h3 { margin: 0; font-family: var(--font-serif); font-size: clamp(22px, 2.2vw, 30px); font-weight: 400; line-height: 1.15; }
.training-details p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.training-thumb { width: 155px; height: 96px; display: grid; overflow: hidden; place-items: center; padding: 7px; border: 1px solid var(--line); background: var(--white); }
.training-thumb img { width: 100%; height: 100%; object-fit: contain; transition: transform 180ms ease; }
.training-thumb:hover img { transform: scale(1.03); }
.additional-training { margin-top: 38px; }
.additional-training-label { margin: 0 0 14px; color: var(--ink); font-size: 13px; font-weight: 500; letter-spacing: .09em; text-transform: uppercase; }
.additional-course-list { border-top: 1px solid var(--line); }
.additional-training article { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: clamp(28px, 5vw, 70px); align-items: start; padding-block: 17px; border-bottom: 1px solid var(--line); }
.additional-training article > div { min-width: 0; }
.additional-training h3 { margin: 0; font-family: var(--font-serif); font-size: 20px; font-weight: 400; line-height: 1.2; }
.additional-training p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }

.recognition-section { background: var(--paper-deep); }
.recognition-layout { border-top: 1px solid var(--line); }
.recognition-group { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: clamp(34px, 6vw, 80px); align-items: start; padding-block: 36px; border-bottom: 1px solid var(--line); }
.recognition-label { margin: 0; color: var(--ink); font-size: 13px; font-weight: 500; letter-spacing: .09em; text-transform: uppercase; }
.poster-feature { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: clamp(28px, 5vw, 60px); align-items: center; }
.poster-image { width: 190px; height: 230px; display: grid; overflow: hidden; place-items: center; padding: 9px; border: 1px solid var(--line); background: var(--white); }
.poster-image img { width: 100%; height: 100%; object-fit: contain; transition: transform 220ms ease; }
.poster-image:hover img { transform: scale(1.02); }
.poster-copy { align-self: center; }
.poster-copy h3 { max-width: 700px; margin: 12px 0 0; font-family: var(--font-serif); font-size: clamp(25px, 2.6vw, 36px); font-weight: 400; line-height: 1.15; }
.poster-copy p { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
.awards-list { border-top: 1px solid var(--line); }
.awards-list article { display: grid; grid-template-columns: 90px 28px 1fr; gap: 18px; align-items: start; padding-block: 22px; border-bottom: 1px solid var(--line); }
.awards-list i { padding-top: 4px; color: var(--copper); font-size: 18px; text-align: center; }
.awards-list h3 { margin: 0; font-family: var(--font-serif); font-size: 21px; font-weight: 400; line-height: 1.2; }
.awards-list p { margin: 6px 0 0; color: var(--metadata); font-size: 12px; line-height: 1.45; }

.about-section { background: var(--paper); }
.about-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, .75fr); gap: clamp(50px, 10vw, 150px); align-items: start; }
.about-heading h2 { max-width: 650px; margin: 0; font-family: var(--font-serif); font-size: clamp(40px, 4.8vw, 64px); font-weight: 400; letter-spacing: -.045em; line-height: 1.03; }
.about-copy { padding-top: 20px; }
.about-copy p { margin: 0 0 20px; color: var(--muted); font-size: 15px; }
.about-copy .about-lead { color: var(--ink); font-family: var(--font-serif); font-size: clamp(24px, 2.3vw, 32px); line-height: 1.35; }
.social-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.social-links a { width: 45px; height: 45px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); font-size: 19px; text-decoration: none; transition: background 160ms ease, color 160ms ease, transform 160ms ease; }
.social-links a:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); }

.contact-section { padding-block: clamp(86px, 10vw, 140px); background: var(--copper); color: var(--white); }
.contact-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, .7fr); gap: clamp(52px, 10vw, 140px); align-items: start; }
.contact-copy .eyebrow { color: #35221a; }
.contact-copy h2 { max-width: 690px; margin: 0; font-family: var(--font-serif); font-size: clamp(40px, 4.8vw, 64px); font-weight: 400; letter-spacing: -.045em; line-height: 1.03; }
.contact-copy > p:not(.eyebrow) { max-width: 590px; margin: 28px 0 0; color: rgba(255,255,255,.76); font-size: 16px; }
.contact-details { display: grid; gap: 14px; margin: 40px 0 0; }
.contact-details div { display: grid; grid-template-columns: 90px 1fr; gap: 16px; }
.contact-details dt { color: #48291e; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.contact-details dd { margin: 0; font-size: 13px; }
.contact-details a { text-underline-offset: 4px; }

.contact-form { padding: clamp(28px, 4vw, 46px); background: var(--white); color: var(--ink); box-shadow: 0 24px 65px rgba(67, 31, 18, .19); }
.honeypot { position: absolute; left: -10000px; }
.form-row { display: grid; gap: 8px; margin-bottom: 20px; }
.form-row label { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.form-row input,
.form-row textarea { width: 100%; padding: 10px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--ink); outline: 0; transition: border-color 160ms ease; }
.form-row input:focus,
.form-row textarea:focus { border-bottom-color: var(--copper); }
.form-row textarea { resize: vertical; }
.form-submit { width: 100%; justify-content: space-between; margin-top: 10px; border: 0; cursor: pointer; }
.form-submit:disabled { cursor: wait; opacity: .65; }
.form-status { min-height: 24px; margin: 14px 0 0; color: var(--muted); font-size: 12px; }
.form-status.is-success { color: #2c6e3b; }
.form-status.is-error { color: #a73928; }

.site-footer { padding-block: 64px 30px; background: var(--ink); color: rgba(255,255,255,.5); }
.footer-main { display: grid; grid-template-columns: .8fr 1.2fr auto; gap: 44px; align-items: start; padding-bottom: 52px; }
.footer-brand { color: var(--white); font-family: var(--font-serif); font-size: 23px; text-decoration: none; }
.footer-main > p { max-width: 410px; margin: 0; color: rgba(255,255,255,.42); font-size: 12px; }
.footer-links { display: flex; gap: 10px; }
.footer-links a { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line-light); border-radius: 50%; color: rgba(255,255,255,.78); font-size: 16px; text-decoration: none; transition: border-color 160ms ease, color 160ms ease, transform 160ms ease; }
.footer-links a:hover { border-color: var(--copper-bright); color: var(--copper-bright); transform: translateY(-2px); }
.footer-row { display: flex; justify-content: space-between; gap: 24px; font-size: 10px; letter-spacing: .05em; text-transform: uppercase; }
.footer-row { padding-top: 25px; border-top: 1px solid var(--line-light); }
.footer-row p { margin: 0; }
.footer-row a { color: inherit; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 650ms ease, transform 650ms ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--copper-bright); outline-offset: 4px; }

@media (max-width: 980px) {
  :root { --header-height: 72px; }
  .nav-toggle { display: grid; width: 44px; height: 44px; padding: 12px 9px; border: 0; place-content: center; gap: 7px; background: transparent; color: #fff; cursor: pointer; }
  .nav-toggle span:not(.sr-only) { display: block; width: 25px; height: 1px; background: currentColor; transition: transform 180ms ease; }
  .nav-toggle[aria-expanded="true"] span:nth-last-child(2) { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .primary-nav { position: fixed; inset: var(--header-height) 0 auto; display: grid; padding: 26px 24px 34px; gap: 0; background: rgba(16,24,23,.98); border-top: 1px solid rgba(255,255,255,.1); transform: translateY(-130%); visibility: hidden; transition: transform 220ms ease, visibility 220ms; }
  .primary-nav.is-open { transform: translateY(0); visibility: visible; }
  .primary-nav a { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 15px; }
  .primary-nav .nav-contact { margin-top: 18px; padding-inline: 14px; text-align: center; }
  .hero-layout { grid-template-columns: 1fr; align-content: end; padding-block: 150px 92px; gap: 42px; }
  .hero-copy { max-width: 720px; }
  .affiliation-card { max-width: 420px; }
  .hero-image { background-position: 68% center; opacity: .63; }
  .hero-scrim { background: linear-gradient(90deg, rgba(8,14,13,.96), rgba(8,14,13,.6) 75%), linear-gradient(0deg, rgba(8,14,13,.82), transparent 60%); }
  .scroll-cue { display: none; }
  .research-story,
  .research-story-reverse { grid-template-columns: 1fr; gap: 42px; }
  .research-story-reverse .research-media { order: 0; }
  .ias-stage { grid-template-columns: minmax(220px, .94fr) minmax(0, 1.06fr); gap: 40px; }
  .research-visual-pair { position: static; grid-template-columns: 1fr 1fr; }
  .research-media { position: static; max-width: 680px; }
  .research-media-contain { max-width: none; padding-top: 0; }
  .experience-layout { grid-template-columns: 1fr; }
  .education-panel { position: static; }
  .skill-row { grid-template-columns: minmax(230px, .8fr) minmax(0, 1.2fr); gap: 35px; }
  .training-row { grid-template-columns: 145px minmax(0, 1fr) 130px; gap: 28px; }
  .training-thumb { width: 130px; height: 86px; }
  .about-layout,
  .contact-layout { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-row: 1 / span 2; grid-column: 2; justify-self: end; }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 32px), var(--max-width)); }
  .brand-name { display: none; }
  .hero { min-height: 800px; }
  .hero-layout { padding-block: 132px 54px; }
  .hero h1 { font-size: clamp(43px, 13.2vw, 62px); }
  .hero-intro { margin-top: 24px; font-size: 16px; }
  .hero-actions { display: grid; margin-top: 28px; }
  .button { width: 100%; }
  .affiliation-card { padding: 20px; }
  .affiliation-role { font-size: 22px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; margin-bottom: 36px; }
  .section-heading > p { display: none; }
  .section-heading-reverse > div,
  .section-heading-reverse > p { grid-row: auto; grid-column: auto; }
  .research-story { padding-block: 52px; }
  .ias-stage-flow { margin-top: 38px; padding-top: 36px; }
  .ias-stage { grid-template-columns: 1fr; gap: 26px; }
  .ias-stage + .ias-stage { margin-top: 52px; }
  .research-visual-pair { grid-template-columns: 1fr; }
  .research-media { max-width: none; }
  .research-media figcaption { grid-template-columns: 1fr; }
  .research-media figcaption a { text-align: left; }
  .research-meta { align-items: flex-start; }
  .research-focus-grid { grid-template-columns: 1fr; }
  .research-focus-grid > div { padding-inline: 0; }
  .research-focus-grid > div + div { border-top: 1px solid var(--line); border-left: 0; }
  .research-measures { grid-template-columns: 1fr; }
  .research-measures div { padding-inline: 0; }
  .research-measures div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .timeline-item { grid-template-columns: 1fr; gap: 17px; }
  .timeline-date { flex-direction: row; align-items: center; }
  .education-panel { margin-inline: -16px; padding: 28px 22px; }
  .skills-list { margin-inline: -16px; }
  .skill-row { grid-template-columns: 1fr; gap: 23px; padding: 30px 22px; }
  .skill-list { grid-template-columns: 1fr; gap: 8px; padding-left: 48px; }
  .training-row { grid-template-columns: 1fr 100px; gap: 10px 18px; }
  .training-meta { grid-column: 1; }
  .training-details { grid-column: 1; }
  .training-thumb { grid-row: 1 / span 2; grid-column: 2; width: 100px; height: 70px; align-self: start; }
  .additional-training article { grid-template-columns: 1fr; gap: 5px; }
  .recognition-group { grid-template-columns: 1fr; gap: 20px; }
  .poster-feature { grid-template-columns: 120px 1fr; gap: 20px; align-items: start; }
  .poster-image { width: 120px; height: 155px; }
  .awards-list article { grid-template-columns: 62px 24px 1fr; gap: 12px; }
  .contact-form { margin-inline: -16px; }
  .contact-details div { grid-template-columns: 1fr; gap: 2px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-links { grid-row: auto; grid-column: auto; justify-self: start; }
  .footer-row { display: grid; }
}

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