/* ==========================================================================
   AutoKnow — project website stylesheet
   Fonts: Source Serif 4 (display) + Inter (text), loaded from Google Fonts.
   ========================================================================== */

:root{
  --paper:#faf9f6;
  --white:#ffffff;
  --ink:#1a1a1f;
  --ink-2:#3a3d44;
  --muted:#5f6570;
  --line:#e4e0d8;
  --line-2:#d3cec4;
  --soft:#f2efe9;
  --accent:#8a1c2b;        /* oxblood */
  --accent-2:#b5303f;
  --accent-soft:#f5e6e8;
  --navy:#1e3a5f;
  --navy-soft:#e6ecf4;
  --gold:#b8862b;
  --serif:"Source Serif 4","Iowan Old Style","Palatino Linotype",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --maxw:1120px;
  --radius:10px;
  --shadow:0 10px 30px rgba(26,26,31,.08);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.65;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:2px solid var(--navy);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.15;letter-spacing:-0.01em;margin:0}
h1{font-size:clamp(2.3rem,5vw,3.8rem)}
h2{font-size:clamp(1.7rem,3.3vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
strong,b{font-weight:600}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:999;border-radius:6px}
.skip:focus{left:12px}

/* --------------------------------------------------------------------------
   Masthead + nav
   -------------------------------------------------------------------------- */
.masthead{background:var(--white);border-bottom:1px solid var(--line)}
.mast-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 24px}
.mast-inner a{display:block;line-height:0}
.mast-inner a:hover{text-decoration:none;opacity:.85}
.mast-erc img{height:58px;width:auto}
@media(max-width:560px){.mast-erc img{height:40px}}

.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,249,246,.92);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-family:var(--serif);font-weight:700;font-size:1.35rem;letter-spacing:-0.02em;color:var(--ink);display:flex;align-items:center;gap:10px}
.brand:hover{text-decoration:none}
.brand .mark{width:26px;height:26px;border-radius:6px;background:var(--accent);display:inline-grid;place-items:center;flex:none}
.brand .mark svg{width:16px;height:16px;display:block}
.brand em{font-style:normal;color:var(--accent)}
.navlinks{display:flex;gap:26px;font-size:.93rem;font-weight:500;margin:0;padding:0;list-style:none}
.navlinks a{color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.navlinks a:hover{color:var(--ink);text-decoration:none}
.navlinks a[aria-current="page"]{color:var(--ink);font-weight:600;border-bottom-color:var(--accent)}
.navtoggle{display:none;background:none;border:1px solid var(--line-2);border-radius:8px;padding:8px 10px;cursor:pointer;color:var(--ink)}
.navtoggle svg{display:block;width:20px;height:20px}
@media(max-width:800px){
  .navtoggle{display:block}
  .navlinks{
    display:none;position:absolute;left:0;right:0;top:62px;
    flex-direction:column;gap:0;background:var(--white);border-bottom:1px solid var(--line);
    padding:8px 24px 14px;box-shadow:var(--shadow);
  }
  .navlinks.open{display:flex}
  .navlinks a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  .navlinks a[aria-current="page"]{border-bottom-color:var(--line)}
  .navlinks li:last-child a{border-bottom:none}
}

/* --------------------------------------------------------------------------
   Hero (home)
   -------------------------------------------------------------------------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#fff 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.9fr);gap:48px;align-items:center;padding-top:80px;padding-bottom:80px}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:56px;padding-bottom:56px}.hero-art{display:none}}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--accent)}
.hero h1{margin-bottom:22px}
.hero h1 em{font-style:italic;color:var(--accent)}
.lede{font-size:clamp(1.08rem,1.9vw,1.3rem);color:var(--ink-2);max-width:620px;line-height:1.55}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;font-size:.95rem;padding:12px 20px;border-radius:8px;
  border:1px solid var(--accent);background:var(--accent);color:#fff;transition:background .15s,transform .15s;
}
.btn:hover{background:var(--accent-2);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn.ghost:hover{background:var(--white);border-color:var(--ink)}
.btn svg{width:16px;height:16px}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px;margin-top:44px;border-top:1px solid var(--line);padding-top:22px;max-width:520px}
.fact{padding-right:18px}
.fact b{display:block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:4px}
.fact span{font-family:var(--serif);font-size:1.1rem;color:var(--ink)}
.hero-art{position:relative}
.hero-art svg{width:100%;height:auto;display:block}
.hero-art figcaption{font-size:.78rem;color:var(--muted);margin-top:10px;text-align:right;font-style:italic}

/* --------------------------------------------------------------------------
   Page header (subpages)
   -------------------------------------------------------------------------- */
.pagehead{background:var(--white);border-bottom:1px solid var(--line);padding:56px 0 48px}
.pagehead h1{font-size:clamp(2rem,4.2vw,3rem);margin:0 0 14px}
.pagehead p{color:var(--ink-2);font-size:1.12rem;max-width:720px;margin:0}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
section{padding:72px 0;border-bottom:1px solid var(--line)}
section.alt{background:var(--white)}
section.tight{padding:52px 0}
.kicker{font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--navy);margin:0 0 12px;display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:22px;height:2px;background:var(--navy)}
section h2{margin-bottom:18px}
.intro{font-size:1.12rem;color:var(--ink-2);max-width:760px;margin-bottom:36px}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{margin:0}
.sec-head .more{font-weight:600;font-size:.95rem;white-space:nowrap}
.prose{max-width:760px}
.prose p{font-size:1.05rem}
.prose h3{margin:32px 0 10px}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
@media(max-width:800px){.two-col{grid-template-columns:1fr;gap:28px}}
.pull{
  border-left:3px solid var(--accent);padding:6px 0 6px 22px;margin:28px 0;
  font-family:var(--serif);font-size:1.35rem;line-height:1.4;color:var(--ink);font-style:italic;
}

/* Card grids */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card h3{margin-bottom:10px}
.card p{margin:0;color:var(--ink-2);font-size:.97rem}
.card .num{font-family:var(--serif);font-size:2rem;color:var(--accent);line-height:1;margin-bottom:14px;font-weight:600}
.card.hyp{position:relative;padding-top:30px}
.card.hyp .tag-top{position:absolute;top:-11px;left:22px;background:var(--navy);color:#fff;font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.card.hyp p em{font-style:italic;color:var(--ink)}

/* Feature list (approach) */
.feature{display:flex;gap:18px;align-items:flex-start}
.feature .ico{flex:none;width:44px;height:44px;border-radius:10px;background:var(--navy-soft);color:var(--navy);display:grid;place-items:center}
.feature .ico svg{width:22px;height:22px}
.feature h3{font-size:1.1rem;margin-bottom:6px}
.feature p{font-size:.95rem;color:var(--ink-2);margin:0}

/* --------------------------------------------------------------------------
   Work-package timeline (Gantt)
   -------------------------------------------------------------------------- */
.gantt{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.gantt-head,.gantt-row{display:grid;grid-template-columns:minmax(220px,1.2fr) minmax(320px,2fr) 120px;align-items:center;gap:16px;padding:12px 18px;border-bottom:1px solid var(--line)}
.gantt-head{background:var(--soft);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.gantt-row:last-child{border-bottom:none}
.gantt-row .wp b{font-family:var(--serif);color:var(--navy);font-size:1rem;margin-right:8px}
.gantt-row .wp span{font-size:.95rem}
.years{display:grid;grid-template-columns:repeat(5,1fr);font-size:.72rem;color:var(--muted);text-align:left}
.years span{border-left:1px solid var(--line);padding-left:6px}
.bar-wrap{position:relative;height:16px;background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 20%)}
.bar{position:absolute;top:0;height:16px;border-radius:4px;background:var(--navy)}
.bar.acc{background:var(--accent)}
.bar.soft{background:var(--gold)}
.gantt .months{font-size:.85rem;color:var(--muted);text-align:right;white-space:nowrap}
@media(max-width:720px){
  .gantt-head{display:none}
  .gantt-row{grid-template-columns:1fr;gap:8px}
  .gantt .months{text-align:left}
}

/* --------------------------------------------------------------------------
   Badges & tags
   -------------------------------------------------------------------------- */
.badge{display:inline-block;font-size:.72rem;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap;letter-spacing:.02em}
.b-draft{background:#e5eef9;color:#1e3a5f}
.b-analysis{background:#fdf1dd;color:#9a5a08}
.b-design{background:#ece6f5;color:#5d3b93}
.b-scoping{background:#ecedef;color:#5f6570}
.b-data{background:#e6f3ea;color:#1f6b3a}
.b-active{background:#e6f3ea;color:#1f6b3a}
.b-plan{background:var(--accent-soft);color:var(--accent)}
.b-new{background:var(--accent);color:#fff}
.tag{font-size:.74rem;font-weight:500;color:var(--muted);background:var(--soft);border:1px solid var(--line);padding:3px 9px;border-radius:6px}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}

/* --------------------------------------------------------------------------
   Paper cards
   -------------------------------------------------------------------------- */
.papers{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.paper{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s;
}
.paper:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.pid{font-size:.74rem;font-weight:600;color:var(--accent);letter-spacing:.1em;text-transform:uppercase}
.paper h3{margin:8px 0 10px;font-size:1.25rem}
.paper h3 a{color:var(--ink)}
.paper p{font-size:.95rem;color:var(--ink-2);margin:0 0 16px;flex:1}
.paper .row{margin-bottom:14px}
.paper .foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.86rem;border-top:1px solid var(--line);padding-top:14px;color:var(--muted)}

/* Detailed paper entry */
.paper-detail{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:34px;margin-bottom:24px;scroll-margin-top:80px}
.paper-detail h2{font-size:1.55rem;margin:8px 0 14px}
.paper-detail .row{margin-bottom:18px}
.paper-detail p{margin:0 0 14px;color:var(--ink-2)}
.paper-detail .dl{display:grid;grid-template-columns:150px 1fr;gap:8px 20px;font-size:.93rem;margin:18px 0 0;border-top:1px solid var(--line);padding-top:18px}
.paper-detail .dl dt{color:var(--muted);font-weight:600}
.paper-detail .dl dd{margin:0}
.paper-detail .finding{background:var(--soft);border-left:3px solid var(--gold);padding:12px 16px;border-radius:0 8px 8px 0;font-size:.95rem;margin:4px 0 16px}
.paper-detail .finding b{color:var(--ink)}
@media(max-width:600px){.paper-detail{padding:24px}.paper-detail .dl{grid-template-columns:1fr;gap:2px 0}.paper-detail .dl dt{margin-top:10px}}
.paper-index{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.paper-index a{font-size:.85rem;font-weight:500;border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;color:var(--ink-2);background:var(--white)}
.paper-index a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:560px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--soft);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
tr:last-child td{border-bottom:none}

/* --------------------------------------------------------------------------
   Team
   -------------------------------------------------------------------------- */
.team{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}
.member{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column}
.member.lead{grid-column:span 2}
@media(max-width:560px){.member.lead{grid-column:span 1}}
.avatar{
  width:64px;height:64px;border-radius:50%;margin-bottom:16px;flex:none;
  background:linear-gradient(135deg,var(--accent),#c9535f);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-weight:600;font-size:1.3rem;
  overflow:hidden;
}
.avatar.navy{background:linear-gradient(135deg,var(--navy),#3f6494)}
.avatar.grey{background:linear-gradient(135deg,#8a8f98,#b6bac2)}
.avatar img{width:100%;height:100%;object-fit:cover}
.member h3{font-size:1.12rem;margin-bottom:4px}
.member .role{font-size:.88rem;color:var(--muted);margin:0 0 10px}
.member .bio{font-size:.92rem;color:var(--ink-2);margin:0 0 12px}
.member .links{margin-top:auto;display:flex;flex-wrap:wrap;gap:12px;font-size:.85rem;font-weight:500}
.positions{background:var(--navy);color:#fff;border-radius:var(--radius);padding:34px;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:32px;align-items:center}
.positions h2,.positions h3{color:#fff}
.positions p{color:#d8e0ec;margin:0}
.positions .btn{background:#fff;color:var(--navy);border-color:#fff}
.positions .btn:hover{background:#eef2f8}
.positions ul{margin:14px 0 0;padding-left:18px;color:#d8e0ec}
@media(max-width:720px){.positions{grid-template-columns:1fr}}

/* --------------------------------------------------------------------------
   News / timeline
   -------------------------------------------------------------------------- */
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line-2);margin-left:8px}
.timeline li{position:relative;padding:0 0 34px 30px}
.timeline li::before{content:"";position:absolute;left:-8px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--white);border:3px solid var(--accent)}
.timeline time{display:block;font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.timeline h3{font-size:1.15rem;margin-bottom:6px}
.timeline p{margin:0;color:var(--ink-2);font-size:.97rem;max-width:680px}
.newslist{display:grid;gap:0}
.newsitem{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.newsitem:last-child{border-bottom:none}
.newsitem time{font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:3px}
.newsitem p{margin:0;color:var(--ink-2)}
@media(max-width:520px){.newsitem{grid-template-columns:1fr;gap:4px}}

/* --------------------------------------------------------------------------
   Links, empty states, misc
   -------------------------------------------------------------------------- */
.linkgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.linkcard{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;display:block;
  transition:border-color .15s,background .15s,transform .15s;
}
.linkcard:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-1px)}
.linkcard b{display:flex;justify-content:space-between;align-items:center;gap:8px;color:var(--ink);font-size:1rem;margin-bottom:4px}
.linkcard b::after{content:"↗";color:var(--accent);font-size:.9rem}
.linkcard span{font-size:.88rem;color:var(--muted)}
.empty{
  background:var(--white);border:1px dashed var(--line-2);border-radius:var(--radius);
  padding:36px 28px;text-align:center;color:var(--muted);
}
.empty strong{color:var(--ink);display:block;font-family:var(--serif);font-size:1.15rem;margin-bottom:6px}
.publist{list-style:none;margin:24px 0 0;padding:0}
.publist li{padding:20px 0;border-bottom:1px solid var(--line);max-width:760px}
.publist li:last-child{border-bottom:none}
.publist .pubtitle{font-family:var(--serif);font-size:1.15rem;color:var(--ink);margin:0 0 4px}
.publist .pubmeta{margin:0;font-size:.95rem;color:var(--ink-2)}
.publist .pubmeta em{color:var(--ink-2)}
.publist .pubstatus{display:inline-block;margin-left:8px;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.note{font-size:.86rem;color:var(--muted);margin-top:18px}
.contact-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.contact-box dl{margin:0;display:grid;grid-template-columns:110px 1fr;gap:10px 16px;font-size:.97rem}
.contact-box dt{color:var(--muted);font-weight:600}
.contact-box dd{margin:0}
.callout{background:var(--accent-soft);border:1px solid #ead2d6;border-radius:var(--radius);padding:18px 22px;font-size:.95rem;color:var(--ink-2)}
.callout b{color:var(--accent)}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer{background:var(--ink);color:#c9ccd3;padding:56px 0 0;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:40px}
@media(max-width:800px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-family:var(--sans);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 14px}
footer .brand{color:#fff;margin-bottom:12px}
footer .brand em{color:#f0a6b0}
footer p{margin:0 0 10px;max-width:400px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
footer a{color:#e6e8ec}
footer a:hover{color:#fff}
.funding{border-top:1px solid #33363d;padding:24px 0 28px}
.funding .wrap{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.funding img{height:54px;width:auto;background:#fff;padding:6px 10px;border-radius:6px}
.funding span{font-size:.8rem;color:#a7abb4;max-width:760px;line-height:1.5}
.colophon{border-top:1px solid #33363d;padding:16px 0;font-size:.78rem;color:#8b909a}
.colophon .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media print{
  .nav,.navtoggle,.hero-art,footer .foot-grid{display:none}
  body{background:#fff}
  section{padding:24px 0}
}