/* OSS Infrastructure Initiative
   Shares the brand tokens of ecogetaway.github.io so the two sites read as related
   without being the same site. Institutional voice, wider layout, form components. */

:root{
  --paper: #EEF1F4;
  --card: #FFFFFF;
  --ink: #141B2E;
  --ink-soft: #4C5768;
  --ink-faint: #5F6B7C;
  --teal: #2F6F6B;
  --teal-soft: #E4EEED;
  --amber: #8B6127;
  --amber-soft: #F4E9DA;
  --line: #CBD2D9;
  --line-strong: #858A8F;   /* UI boundaries + link underlines (WCAG 1.4.11) */
  --line-soft: #DEE3E8;
  --max: 760px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 88px; }

/* Screen-reader-only text: present in the accessibility tree, not on screen. */
.visually-hidden{
  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:absolute; left:8px; top:-56px; z-index:100;
  background: var(--teal); color:#fff;
  font-family:'IBM Plex Mono', monospace; font-size:13px;
  padding:10px 16px; border-radius:4px; text-decoration:none;
  transition: top 120ms ease-out;
}
.skip-link:focus{ top:8px; }
@media (prefers-reduced-motion: reduce){ .skip-link{ transition:none; } }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a{ color: var(--teal); text-decoration-color: var(--line-strong); text-underline-offset: 3px; }
a:hover{ text-decoration-color: var(--teal); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--teal); outline-offset: 3px;
}

header.topbar{
  position: sticky; top:0; z-index: 20;
  backdrop-filter: blur(6px);
  background: rgba(238,241,244,0.97);
  border-bottom: 1px solid var(--line-soft);
}
.topbar-inner{
  max-width: 1040px; margin: 0 auto;
  padding: 16px 28px;
  display:flex; align-items:center; justify-content: space-between;
  gap: 20px;
}
.brand{
  display: inline-flex; align-items: baseline; gap: 8px;
  font-family:'IBM Plex Mono', monospace;
  font-size: 13px; letter-spacing: 0.04em;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
}
.brand b{ color: var(--ink); font-weight: 600; }
nav.jumplinks{
  display:flex; gap: 20px; flex-wrap: wrap;
  font-family:'IBM Plex Mono', monospace;
  font-size: 12.5px; letter-spacing: 0.03em;
}
nav.jumplinks a{ color: var(--ink-soft); text-decoration:none; }
nav.jumplinks a:hover{ color: var(--teal); text-decoration: underline; }

main{ max-width: 1040px; margin: 0 auto; padding: 0 28px 80px; }

section{
  display: grid;
  grid-template-columns: 64px minmax(0,1fr);
  gap: 28px;
  padding-top: 76px;
  scroll-margin-top: 76px;
}
section .tag{
  font-family:'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  padding-top: 6px;
}
section .body{
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
  max-width: var(--max);
}

h1,h2,h3{
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 14px;
}
h2{ font-size: 26px; letter-spacing: -0.01em; }
h3{ font-size: 18px; margin-bottom: 6px; }
p{ margin: 0 0 14px; color: var(--ink-soft); }
p:last-child{ margin-bottom: 0; }
em{ font-style: italic; color: var(--ink); }

/* ---------- Hero ---------- */

.hero{
  padding: 96px 28px 48px;
  max-width: 1040px; margin: 0 auto;
  background: radial-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 28px 28px;
}
.hero .eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 18px;
}
.hero h1{
  font-size: clamp(30px, 4.4vw, 44px);
  line-height: 1.12;
  max-width: 20ch;
  letter-spacing: -0.015em;
}
.hero .byline{
  margin-top: 18px;
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 56ch;
}
.hero-actions{
  margin-top: 28px;
  display: flex; flex-wrap: wrap; gap: 12px;
}
.btn{
  display: inline-flex; align-items: center;
  font-family:'IBM Plex Mono', monospace;
  font-size: 13px; letter-spacing: 0.02em;
  padding: 10px 16px;
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary{ background: var(--teal); color: #fff; }
.btn-primary:hover{ filter: brightness(1.05); text-decoration: none; }
.btn-secondary{
  background: transparent; color: var(--ink);
  border-color: var(--line-strong);
}
.btn-secondary:hover{ border-color: var(--teal); color: var(--teal); text-decoration: none; }

.factbar{
  list-style: none; margin: 44px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  overflow: hidden;
}
.factbar li{
  background: var(--card);
  padding: 16px 18px;
  font-family:'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--ink-faint);
  line-height: 1.5;
}
.factnum{
  display:block;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--teal);
  line-height: 1.1;
  margin-bottom: 4px;
}

.rule-full{
  margin-top: 56px;
  border: none; border-top: 1px solid var(--line);
}

/* ---------- Cards ---------- */

.status{
  display:inline-flex; align-items:center; gap:7px;
  font-family:'IBM Plex Mono', monospace;
  font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 4px 10px 4px 8px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.status::before{ content:""; width:7px; height:7px; border-radius:50%; }
.status.shipped{ background: var(--teal-soft); color: var(--teal); }
.status.shipped::before{ background: var(--teal); box-shadow: 0 0 0 3px rgba(47,111,107,0.16); }
.status.active{ background: var(--teal-soft); color: var(--teal); }
.status.active::before{ background: var(--teal); box-shadow: 0 0 0 3px rgba(47,111,107,0.16); }
.status.draft{ background: var(--amber-soft); color: var(--amber); }
.status.draft::before{ background: var(--amber); box-shadow: 0 0 0 3px rgba(168,117,47,0.16); }

ul.card-list{ list-style:none; margin:0; padding:0; }
.research-card{
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 22px 24px;
  margin-bottom: 16px;
}
.research-card:last-child{ margin-bottom: 0; }
.hook{
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 17px;
  color: var(--ink);
  margin: 0 0 12px;
  line-height: 1.4;
}
.meta{
  font-family:'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  margin: 0 0 14px;
}
.cta-row{
  display: flex; flex-wrap: wrap; gap: 10px 16px;
  align-items: center;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}
.cta-row a{
  font-family:'IBM Plex Mono', monospace;
  font-size: 13px;
  text-decoration: none;
}
.cta-row a:hover{ text-decoration: underline; }
.cta-primary{ font-weight: 600; color: var(--teal); }
.cta-secondary{ color: var(--ink-soft); }

.code-inline{
  font-family:'IBM Plex Mono', monospace;
  font-size: 12.5px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  padding: 2px 7px;
  border-radius: 3px;
  color: var(--ink);
}

/* ---------- Method / roadmap lists ---------- */

ol.approach{ list-style: none; counter-reset: step; margin: 0; padding:0; }
ol.approach li{
  counter-increment: step;
  display:grid; grid-template-columns: 26px 1fr; gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink-soft);
}
ol.approach li:first-child{ padding-top: 0; }
ol.approach li:last-child{ border-bottom:none; }
ol.approach li::before{
  content: counter(step);
  font-family:'IBM Plex Mono', monospace;
  font-size: 12px; color: var(--teal);
}

ol.roadmap{ list-style:none; margin:0; padding:0; }
ol.roadmap li{
  display:grid; grid-template-columns: 118px 1fr; gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}
ol.roadmap li:first-child{ padding-top: 4px; }
ol.roadmap li:last-child{ border-bottom:none; padding-bottom: 0; }
.phase{
  font-family:'IBM Plex Mono', monospace;
  font-size: 11.5px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--teal);
  padding-top: 4px;
}
ol.roadmap li:last-child .phase{ color: var(--amber); }

ul.funds{ list-style:none; margin:0 0 24px; padding:0; }
ul.funds li{
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}
ul.funds li:first-child{ padding-top: 4px; }
ul.funds li:last-child{ border-bottom:none; }

.callout{
  background: var(--teal-soft);
  border: 1px solid #C5DCDA;
  border-radius: 6px;
  padding: 20px 22px;
}
.callout p{ color: #2C4340; }
.callout strong{ color: var(--ink); font-weight: 600; }
.callout-cta{
  margin-top: 12px !important;
  font-family:'IBM Plex Mono', monospace;
  font-size: 13.5px;
}

/* ---------- Publications ---------- */

ul.pub-list{ list-style:none; margin:0; padding:0; }
.pub{ padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.pub:last-child{ border-bottom: none; }
.pub .venue{
  font-family:'IBM Plex Mono', monospace;
  font-size: 12px; letter-spacing:0.03em; text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.pub .title{ font-size: 16.5px; color: var(--ink); font-weight: 500; }
.pub .title a{
  color: var(--ink);
  text-decoration-color: var(--ink-faint);
  text-decoration-thickness: 1px;
}
.pub .title a:hover{ text-decoration-color: var(--teal); color: var(--teal); }
.pub-note{ margin: 6px 0 0; font-size: 15px; }

/* ---------- Contribute ---------- */

.ways{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.way{
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 18px 20px;
}
.way p{ font-size: 15px; }
.way p:last-child{
  margin-top: 12px;
  font-family:'IBM Plex Mono', monospace;
  font-size: 13px;
}

.form-heading{
  font-size: 22px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.signup{
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 24px;
  max-width: 560px;
}
.hp-field{ position:absolute; left:-9999px; }
.field{ margin-bottom: 20px; border: none; padding: 0; }
.field label, .field legend{
  display: block;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
  padding: 0;
}
.req{ color: var(--ink-faint); font-weight: 400; }
.opt{ color: var(--ink-faint); font-weight: 400; }
.field input[type="text"],
.field input[type="email"],
.field textarea{
  width: 100%;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 9px 11px;
}
.field textarea{ resize: vertical; }
.help{
  font-size: 13.5px;
  color: var(--ink-faint);
  margin: 6px 0 0;
}
.field legend + .help{ margin: 0 0 10px; }
.checks{ display: grid; gap: 10px; }
.check{ display: flex; align-items: flex-start; gap: 10px; }
.check input{
  width: 17px; height: 17px;
  margin: 3px 0 0;
  accent-color: var(--teal);
  flex-shrink: 0;
}
.check label{
  margin: 0;
  font-weight: 400;
  font-size: 15px;
  color: var(--ink-soft);
}

/* ---------- Contact + footer ---------- */

.contact-list{ display:flex; flex-direction:column; gap:10px; }
.contact-list a, .contact-list span{
  font-family:'IBM Plex Mono', monospace; font-size: 14.5px;
}
.contact-list .label{ color: var(--ink-faint); display:inline-block; width: 96px; }

footer{
  max-width: 1040px; margin: 0 auto; padding: 60px 28px 40px;
  display:flex; justify-content: space-between; align-items:center; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--line-soft);
  font-family:'IBM Plex Mono', monospace;
  font-size: 12px; color: var(--ink-faint);
}

/* ---------- Simple inner pages ---------- */

.page-narrow{ max-width: var(--max); margin: 0 auto; padding: 72px 28px 80px; }
.page-narrow h1{ font-size: clamp(26px, 3.6vw, 34px); line-height: 1.15; }
.page-narrow h2{ font-size: 21px; margin-top: 32px; }
.page-narrow ul{ padding-left: 20px; }
.page-narrow li{ color: var(--ink-soft); margin-bottom: 8px; }
.back-link{
  display:inline-block;
  margin-top: 32px;
  font-family:'IBM Plex Mono', monospace;
  font-size: 13px;
}

@media (max-width: 640px){
  section{ grid-template-columns: 1fr; gap: 8px; }
  section .tag{ padding-top:0; }
  nav.jumplinks{
    gap:16px; flex-wrap:nowrap; overflow-x:auto;
    -webkit-overflow-scrolling:touch; scrollbar-width:none;
    max-width:52vw;
  }
  nav.jumplinks::-webkit-scrollbar{ display:none; }
  .hero{ padding-top: 64px; }
  .brand b{ font-size: 12px; }
  ol.roadmap li{ grid-template-columns: 1fr; gap: 6px; }
  .phase{ padding-top: 0; }
  .contact-list .label{ display:block; width:auto; margin-bottom: 2px; }
  .signup{ padding: 20px 18px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
}