:root {
  --ink: #17211f;
  --ink-2: #34413e;
  --muted: #66736f;
  --line: #dbe5e1;
  --paper: #fbfcfb;
  --tint: #eef5f2;
  --brand: #176453;
  --brand-2: #0f4c40;
  --accent: #b7d7ca;
  --dark: #102722;
  --dark-2: #19332d;
  --white: #ffffff;
  --radius: 24px;
  --shadow: 0 22px 60px rgba(27, 57, 49, .10);
  --shell: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { max-width: 100%; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 999;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.skip-link:focus { top: 16px; }

.shell { width: min(calc(100% - 40px), var(--shell)); margin: 0 auto; }
.section-pad { padding: 112px 0; }
.section { border-top: 1px solid var(--line); }
.section-tint { background: var(--tint); }
.section-dark { background: var(--dark); color: var(--white); border-top: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 252, 251, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(219, 229, 225, .8);
}
.nav-wrap { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 13px; background: white; color: white;
  border: 1px solid var(--line); overflow: hidden;
  box-shadow: 0 5px 16px rgba(23, 100, 83, .08);
}
.brand-mark img { width: 35px; height: 35px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-size: 14px; }
.brand-copy small { color: var(--muted); font-size: 11px; margin-top: 4px; }
.site-nav { display: flex; gap: 18px; align-items: center; font-size: 12px; color: var(--ink-2); }
.site-nav a { position: relative; padding: 25px 0 23px; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 17px; height: 2px; background: var(--brand); transition: right .2s ease; }
.site-nav a:hover::after, .site-nav a.active::after { right: 0; }
.nav-toggle { display: none; border: 1px solid var(--line); background: white; border-radius: 10px; padding: 8px 12px; }

.hero { min-height: 790px; display: flex; align-items: center; background:
  radial-gradient(circle at 85% 20%, rgba(183, 215, 202, .45), transparent 34%),
  linear-gradient(180deg, #fbfcfb 0%, #f5f9f7 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.45fr .75fr; align-items: center; gap: 82px; }
.eyebrow { margin: 0 0 16px; font-size: 12px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; color: var(--brand); }
.hero h1 { margin: 0; font-size: clamp(54px, 7vw, 96px); line-height: .98; letter-spacing: -.055em; max-width: 900px; }
.hero-lede { margin: 32px 0 0; font-size: clamp(22px, 2.8vw, 34px); line-height: 1.2; max-width: 760px; color: var(--ink-2); letter-spacing: -.025em; }
.hero-summary { max-width: 750px; margin: 24px 0 0; color: var(--muted); font-size: 17px; }
.hero-pills, .future-pills, .standards { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 30px; }
.hero-pills span, .future-pills span { border: 1px solid var(--line); background: rgba(255,255,255,.7); padding: 8px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }

.hero-panel { background: var(--dark); color: white; border-radius: 30px; overflow: hidden; box-shadow: var(--shadow); transform: rotate(1deg); }
.hero-panel-top { display: flex; align-items: center; gap: 9px; padding: 18px 20px; border-bottom: 1px solid rgba(255,255,255,.1); color: #cfe3dc; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; font-weight: 800; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #84d0af; box-shadow: 0 0 0 5px rgba(132,208,175,.12); }
.hero-panel-body { padding: 40px; }
.panel-kicker { color: #a9c9be; font-size: 12px; text-transform: uppercase; letter-spacing: .16em; font-weight: 800; }
.panel-metric { display: flex; align-items: flex-end; gap: 18px; margin-top: 30px; }
.panel-metric strong { font-size: 88px; line-height: .75; letter-spacing: -.06em; }
.panel-metric span { max-width: 130px; color: #c7ddd6; line-height: 1.25; }
.panel-metric.compact strong { font-size: 58px; }
.panel-rule { height: 1px; background: rgba(255,255,255,.1); margin: 38px 0; }
.hero-panel-foot { margin: 0; padding: 18px 20px 22px; background: rgba(255,255,255,.035); color: #9dbdb3; font-size: 12px; }

.split-grid { display: grid; grid-template-columns: 1fr .92fr; gap: 90px; align-items: center; }
.section-copy h2, .section-heading h2, .future h2 { margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.05; letter-spacing: -.045em; }
.section-copy > p, .section-heading > p:not(.eyebrow), .future p { font-size: 17px; color: var(--muted); max-width: 760px; }
.section-heading { max-width: 900px; margin-bottom: 58px; }
.section-heading.light p:not(.eyebrow) { color: #b9cdc6; }
.section-heading.light .eyebrow { color: #88c7b0; }

.mini-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; margin-top: 38px; }
.mini-grid article { background: var(--paper); padding: 22px 24px; }
.mini-grid h3 { margin: 0 0 6px; font-size: 15px; }
.mini-grid p { margin: 0; color: var(--muted); font-size: 13px; }

.media-placeholder { min-height: 310px; border-radius: var(--radius); border: 1px solid #cfdcd7; background: linear-gradient(135deg, #fbfdfc, #e8f1ed); overflow: hidden; box-shadow: 0 18px 50px rgba(35, 77, 65, .07); }
.browser-mock { min-height: 480px; }
.browser-bar { height: 46px; padding: 0 16px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid #d6e1dd; background: rgba(255,255,255,.8); color: #84918d; font-size: 11px; }
.browser-bar i { width: 8px; height: 8px; border-radius: 50%; background: #bbc9c4; }
.browser-bar span { margin-left: 8px; }
.placeholder-body { min-height: inherit; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 42px; }
.browser-mock .placeholder-body { min-height: 434px; }
.placeholder-label { display: inline-block; font-size: 10px; letter-spacing: .18em; font-weight: 900; color: var(--brand); margin-bottom: 14px; }
.placeholder-body strong { font-size: 22px; letter-spacing: -.025em; }
.placeholder-body p { max-width: 430px; margin: 10px auto 0; color: var(--muted); font-size: 13px; }


.project-visual { display: grid; gap: 16px; }
.project-logo-card { min-height: 155px; border: 1px solid var(--line); border-radius: 20px; background: white; padding: 24px 28px; display: grid; align-content: center; gap: 12px; box-shadow: 0 14px 40px rgba(35,77,65,.06); }
.project-logo-card img { width: min(100%, 520px); height: auto; }
.project-logo-card small { color: var(--muted); font-size: 11px; }
.media-shot { margin: 0; border: 1px solid #cfdcd7; border-radius: 20px; overflow: hidden; background: white; box-shadow: 0 18px 50px rgba(35,77,65,.08); }
.media-shot a { display: block; background: #eef2f0; cursor: zoom-in; }
.media-shot img { width: 100%; height: 270px; display: block; object-fit: contain; background: #f4f7f6; transition: transform .25s ease; }
.media-shot a:hover img { transform: scale(1.012); }
.media-shot figcaption { padding: 18px 20px 20px; display: grid; gap: 5px; border-top: 1px solid var(--line); }
.media-shot figcaption strong { font-size: 15px; line-height: 1.25; }
.media-shot figcaption span { color: var(--muted); font-size: 12px; line-height: 1.45; }
.project-shot img { height: 330px; }

.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); border-top: 2px solid var(--brand); }
.timeline li { position: relative; padding: 34px 20px 0 0; }
.timeline li::before { content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px; border-radius: 50%; background: var(--paper); border: 3px solid var(--brand); }
.timeline .time { display: block; color: var(--brand); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 8px; }
.timeline strong { display: block; font-size: 15px; line-height: 1.25; }
.timeline small { display: block; margin-top: 8px; color: var(--muted); line-height: 1.45; font-size: 12px; }

.workflow-path { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1.15fr .9fr 1.15fr 1.15fr .95fr; gap: 0; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: white; }
.workflow-stage { position: relative; padding: 20px 20px 18px; min-width: 0; }
.workflow-stage + .workflow-stage { border-left: 1px solid var(--line); }
.workflow-stage + .workflow-stage::before { content: "→"; position: absolute; left: -10px; top: 22px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--paper); color: var(--brand); font-size: 13px; font-weight: 900; }
.workflow-stage-label { display: block; margin-bottom: 14px; color: var(--brand); font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .11em; }
.workflow-step { display: flex; align-items: baseline; gap: 9px; min-height: 31px; padding: 6px 0; }
.workflow-step + .workflow-step { border-top: 1px solid #edf2f0; }
.workflow-step b { flex: 0 0 auto; color: var(--brand); font-size: 10px; letter-spacing: .08em; }
.workflow-step span { min-width: 0; font-size: 15px; font-weight: 800; line-height: 1.25; }
.scenario-strip { margin-top: 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.scenario-strip > strong { font-size: 12px; }
.scenario-pills { display: flex; gap: 7px; flex-wrap: wrap; }
.scenario-pills span { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--tint); color: var(--muted); font-size: 12px; line-height: 1.2; }

.tech-group { margin-top: 42px; }
.tech-group-title { color: #9ac4b6; font-size: 12px; text-transform: uppercase; letter-spacing: .13em; font-weight: 800; margin-bottom: 14px; }
.tech-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.core-tech { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tech-card { min-height: 150px; border: 1px solid rgba(255,255,255,.11); background: rgba(255,255,255,.045); border-radius: 18px; padding: 22px; display: flex; flex-direction: column; justify-content: flex-end; }
.tech-card strong { margin-top: 18px; font-size: 15px; }
.tech-card small { color: #9ebbb2; margin-top: 3px; }
.icon-shell, .tech-glyph { width: 42px; height: 42px; display: grid; place-items: center; }
.icon-shell img { width: 34px; height: 34px; filter: invert(1); opacity: .9; }
.icon-shell.brand-icon,
.icon-shell.aws-service-icon {
  padding: 6px;
  border-radius: 10px;
  background: rgba(255,255,255,.96);
}
.icon-shell.brand-icon img { width: 30px; height: 30px; filter: none; opacity: 1; }
.js-brand-mark {
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  padding: 3px 3px 2px;
  border-radius: 2px;
  background: #f7df1e;
  color: #111;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  font: 600 14px/1 Arial, sans-serif;
  letter-spacing: -.04em;
}
.icon-shell.aws-service-icon img { width: 30px; height: 30px; filter: none; opacity: 1; }
.icon-shell.official-logo { width: 88px; height: 42px; padding: 5px 8px; border-radius: 10px; background: rgba(255,255,255,.96); }
.icon-shell.official-logo img { width: 72px; height: 30px; object-fit: contain; filter: none; opacity: 1; }
.icon-fallback { display: none; place-items: center; width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; color: #cfe3dc; font-size: 11px; font-weight: 900; }
.tech-glyph { width: auto; min-width: 42px; padding: 0 8px; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; color: #cfe3dc; font-size: 11px; font-weight: 900; }
.standards { margin-top: 36px; }
.standards span { border: 1px solid rgba(255,255,255,.13); color: #d4e5df; padding: 9px 13px; border-radius: 999px; font-size: 12px; font-weight: 800; }

.workstream-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.work-card, .lesson-card { border: 1px solid var(--line); background: white; border-radius: 20px; padding: 24px; min-height: 205px; }
.work-card { position: relative; overflow: hidden; }
.work-card-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.work-card-top > span, .lesson-card > span { color: var(--brand); font-size: 10px; font-weight: 900; letter-spacing: .12em; }
.work-icon { width: 42px; height: 42px; color: var(--brand); opacity: .24; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.work-card h3, .lesson-card h3 { margin: 24px 0 9px; font-size: 19px; line-height: 1.15; letter-spacing: -.025em; }
.work-card p, .lesson-card p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.5; }

.workstream-spotlight { margin-top: 18px; border: 1px solid var(--line); border-radius: 22px; background: var(--tint); padding: 24px; display: grid; grid-template-columns: .72fr 1.28fr; gap: 26px; align-items: center; }
.workstream-spotlight h3 { margin: 7px 0 10px; font-size: 27px; line-height: 1.1; letter-spacing: -.035em; }
.workstream-spotlight-copy > p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; max-width: 45ch; }
.analytics-shot img { height: auto; aspect-ratio: auto; object-fit: contain; background: white; }
.workstream-spotlight-copy > p.spotlight-source {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.4;
}
.spotlight-source a { color: var(--brand); font-weight: 700; text-decoration: none; }
.spotlight-source a:hover { text-decoration: underline; }
.spotlight-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.spotlight-tags span { border: 1px solid var(--line); border-radius: 999px; padding: 7px 10px; background: white; color: var(--muted); font-size: 11px; font-weight: 700; }
.uiux-gallery { display: grid; grid-template-columns: 1.55fr .65fr; gap: 10px; min-width: 0; }
.uiux-shot { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: white; }
.uiux-shot .image-link { display: block; background: white; }
.uiux-shot img { display: block; width: 100%; height: 185px; object-fit: contain; background: white; }
.uiux-shot figcaption { padding: 9px 11px 10px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10.5px; line-height: 1.35; }

.screenshot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.screenshot-grid .media-shot img { height: 260px; }
.finding-box { margin-top: 24px; border-radius: 20px; background: var(--dark); color: white; padding: 22px 28px; display: grid; grid-template-columns: minmax(220px, .55fr) 1.45fr; gap: 28px; align-items: center; }
.finding-box .eyebrow { color: #86c3ad; }
.finding-box h3 { font-size: 24px; margin: 0; line-height: 1.15; letter-spacing: -.03em; }
.finding-box > p { margin: 0; color: #b7ccc5; }

.lesson-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.lesson-card { min-height: 230px; background: var(--tint); }
.lesson-card h3 { margin-top: 44px; font-size: 18px; }

.future { background: #dfeee8; }
.future-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.future p { margin-top: 0; color: var(--ink-2); }
.future-pills span { background: rgba(255,255,255,.55); border-color: #c2d8cf; }

.team-heading { max-width: 760px; }
.team-note { border-left: 3px solid var(--brand); padding-left: 18px; }
.contributor-legend {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 11px;
}
.contributor-legend span {
  width: 18px;
  height: 3px;
  border-radius: 999px;
  background: var(--brand);
  flex: 0 0 auto;
}
.contributor-legend p { margin: 0; }
.contributor-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
}
.contributor-card {
  position: relative;
  min-height: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.contributor-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: transparent;
}
.contributor-card--spotlight {
  background: linear-gradient(145deg, #ffffff 0%, #f3faf7 100%);
  border-color: #bdd8ce;
}
.contributor-card--spotlight::before { background: var(--brand); }
.contributor-card--lead {
  border-color: #8fbcae;
  box-shadow: 0 10px 28px rgba(30, 84, 69, .08);
}
.contributor-topline {
  position: absolute;
  top: 16px;
  right: 18px;
  margin: 0;
  color: var(--brand);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.contributor-card h3 {
  margin: 0;
  max-width: calc(100% - 100px);
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -.02em;
}
.contributor-card:not(.contributor-card--lead) h3 { max-width: none; }
.role-pills {
  margin-top: 14px;
  padding-top: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.role-pills span {
  padding: 6px 9px;
  border: 1px solid #d1e2dc;
  border-radius: 999px;
  background: var(--tint);
  color: #315b4f;
  font-size: 9.5px;
  font-weight: 700;
  line-height: 1.15;
}
.team-credit-note { margin: 16px 0 0; color: var(--muted); font-size: 12px; }

.contributor-tier-heading {
  margin: 28px 0 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.contributor-tier-heading span {
  color: var(--brand);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
  white-space: nowrap;
}
.contributor-tier-note {
  margin: -4px 0 14px;
  color: var(--muted);
  font-size: 11px;
}
.contributor-tier-heading::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--line);
}
.contributor-grid--leadership {
  margin-top: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.contributor-grid--key {
  margin-top: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.contributor-grid--students {
  margin-top: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.contributor-card--leadership {
  border-color: #a9cdc1;
  box-shadow: 0 8px 24px rgba(30, 84, 69, .06);
}
.contributor-card--key {
  border-color: #d5e3de;
  background: #fff;
}
.contributor-card--key.contributor-card--spotlight {
  border-color: #a9cfc2;
  background: linear-gradient(145deg, #ffffff 0%, #edf8f3 100%);
  box-shadow: 0 9px 26px rgba(30, 84, 69, .08);
}
.contributor-card--team-lead {
  border: 2px solid var(--brand);
  background: linear-gradient(145deg, #f8fcfa 0%, #d7ece4 100%);
  box-shadow: 0 16px 38px rgba(23, 100, 83, .18), 0 0 0 4px rgba(23, 100, 83, .07);
  transform: translateY(-3px);
}
.contributor-card--team-lead h3 {
  color: var(--brand-2);
  font-size: 20px;
}
.role-pills .role-pill--lead {
  border-color: var(--brand);
  background: var(--brand);
  color: white;
  font-weight: 600;
}
.role-pills .role-pill--golive {
  border-color: #d2c4e4;
  background: #f2edf8;
  color: #665078;
  font-weight: 700;
}
.role-pills .role-pill--testing {
  border-color: #b9d2e3;
  background: #eaf3f9;
  color: #315f7a;
  font-weight: 700;
}
.role-pills .role-pill--support {
  border-color: #d7ddd9;
  background: #f4f6f5;
  color: #66706c;
  font-weight: 600;
}
.contributor-grid--students .contributor-card { padding: 15px 16px; }
.contributor-grid--students .contributor-card h3 {
  max-width: none;
  font-size: 16px;
  line-height: 1.25;
}
.contributor-grid--students .role-pills { margin-top: 12px; gap: 5px; }
.contributor-grid--students .role-pills span {
  padding: 6px 8px;
  font-size: 9.5px;
  line-height: 1.15;
}

.site-footer { background: var(--dark); color: white; padding: 42px 0 28px; }
.footer-main { display: grid; grid-template-columns: 1.2fr 1fr .8fr; gap: 42px; align-items: start; }
.footer-main p { margin: 6px 0 0; color: #aac4bb; font-size: 12px; line-height: 1.5; }
.footer-main a { color: #d9eee7; text-decoration: none; border-bottom: 1px solid rgba(217,238,231,.35); }
.footer-main a:hover { border-bottom-color: currentColor; }
.footer-disclaimer { margin-top: 28px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #89a99e; font-size: 11px; line-height: 1.5; }

.image-lightbox { width: min(94vw, 1450px); max-width: none; max-height: 92vh; margin: auto; padding: 0; border: 0; border-radius: 18px; background: #101816; color: white; overflow: hidden; box-shadow: 0 30px 90px rgba(0,0,0,.38); }
.image-lightbox::backdrop { background: rgba(9, 20, 17, .82); backdrop-filter: blur(4px); }
.image-lightbox figure { margin: 0; display: grid; max-height: 92vh; }
.image-lightbox img { max-width: 100%; max-height: 84vh; width: auto; height: auto; justify-self: center; object-fit: contain; cursor: zoom-out; }
.image-lightbox figcaption { min-height: 44px; padding: 11px 56px 12px 18px; color: #c2d4ce; font-size: 12px; background: #14211e; border-top: 1px solid rgba(255,255,255,.08); }
.lightbox-close { position: absolute; z-index: 2; top: 10px; right: 12px; width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; background: rgba(16,24,22,.86); color: white; font-size: 24px; line-height: 1; cursor: pointer; }
.lightbox-close:hover { background: rgba(255,255,255,.13); }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 980px) {
  .site-nav { display: none; position: absolute; top: 72px; left: 20px; right: 20px; flex-direction: column; align-items: stretch; gap: 0; padding: 10px; border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 10px; }
  .site-nav a::after { display: none; }
  .nav-toggle { display: block; }
  .hero-grid, .split-grid, .future-grid, .finding-box, .footer-main { grid-template-columns: 1fr; gap: 44px; }
  .contributor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contributor-grid--leadership { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contributor-grid--key { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contributor-grid--students { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero { min-height: auto; }
  .hero-panel { max-width: 520px; }
  .timeline { grid-template-columns: repeat(3, 1fr); row-gap: 44px; border-top: 0; }
  .timeline li { border-top: 2px solid var(--brand); }
  .workstream-grid { grid-template-columns: repeat(2, 1fr); }
  .lesson-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid, .core-tech { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .section-pad { padding: 78px 0; }
  .brand-copy small { display: none; }
  .hero-grid { gap: 54px; }
  .hero h1 { font-size: clamp(46px, 15vw, 68px); }
  .hero-lede { font-size: 23px; }
  .hero-panel-body { padding: 30px; }
  .timeline { grid-template-columns: 1fr; gap: 18px; }
  .timeline li { border-top: 0; border-left: 2px solid var(--brand); padding: 0 0 28px 26px; }
  .timeline li::before { top: 2px; left: -8px; }
  .workflow-path { grid-template-columns: 1fr; border-radius: 16px; }
  .workflow-stage + .workflow-stage { border-left: 0; border-top: 1px solid var(--line); }
  .workflow-stage + .workflow-stage::before { content: "↓"; left: 20px; top: -10px; }
  .workstream-grid, .screenshot-grid, .lesson-grid, .tech-grid, .core-tech, .contributor-grid { grid-template-columns: 1fr; }
  .contributor-grid--leadership, .contributor-grid--key, .contributor-grid--students { grid-template-columns: 1fr; }
  .workstream-spotlight { grid-template-columns: 1fr; }
  .uiux-gallery { grid-template-columns: 1fr 1fr; }
  .work-card, .lesson-card { min-height: auto; }
  .work-card h3, .lesson-card h3 { margin-top: 30px; }
  .section-copy h2, .section-heading h2, .future h2 { font-size: 40px; }
}

@media (max-width: 560px) {
  .workstream-spotlight { padding: 18px; }
  .uiux-gallery { grid-template-columns: 1fr; }
  .uiux-shot img { height: auto; max-height: 240px; }
}

/* Interoperability evidence */
.interop-section { border-top: 1px solid var(--line); }
.interop-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 58px; align-items: center; }
.interop-facts { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.interop-facts article { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--tint); }
.interop-facts article > span { display: block; margin-bottom: 18px; color: var(--brand); font-size: 10px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.interop-facts strong { display: block; font-size: 16px; }
.interop-facts p { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.interop-shot img { height: 390px; object-fit: contain; }

@media (max-width: 980px) {
  .interop-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 680px) {
  .interop-facts { grid-template-columns: 1fr; }
  .interop-shot img { height: auto; }
}