/* Layout: an engineering-spec one-pager on drafting paper. One page, two doors: investors and founders.
   The four tracks each keep one colour everywhere they appear (scorecard, track cards, timeline). Single paper look by choice. */
:root{
  --paper:#f3f3ee; --sheet:#fbfbf8; --ink:#13171d; --graphite:#4f5661; --line:#d8dad2; --grid:rgba(19,23,29,.045);
  --signal:#e2551b; --fin:#2f6f5e; --ppl:#9a5b22; --sec:#34508a; --rev:#7a3f6d;
  --display:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif; --body:"Public Sans",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}
a{color:inherit}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:3px}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--display);margin:0;line-height:1.02;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:clamp(42px,6.2vw,84px);font-weight:800}
h2{font-size:clamp(32px,4vw,52px);font-weight:700}
h3{font-size:22px;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.tag{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--graphite)}
.tag b{color:var(--signal);font-weight:500}
.mock{background:var(--ink);color:var(--paper);text-align:center;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:7px 16px}

header.top{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--paper) 92%,transparent);position:sticky;top:env(safe-area-inset-top,0px);z-index:5;backdrop-filter:blur(8px)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:6;background:var(--paper)}
.bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:14px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.01em}
.logo i{display:grid;grid-template-columns:1fr 1fr;gap:2px;width:22px;height:22px}
.logo i span{border-radius:2px}
.logo i span:nth-child(1){background:var(--fin)}.logo i span:nth-child(2){background:var(--ppl)}.logo i span:nth-child(3){background:var(--sec)}.logo i span:nth-child(4){background:var(--rev)}
nav.n{display:flex;gap:24px;align-items:center;font-size:15px}
nav.n a{text-decoration:none;color:var(--graphite)} nav.n a:hover{color:var(--ink)}
nav.n a.btn,nav.n a.btn:hover{color:var(--paper)}
@media (max-width:820px){nav.n .t{display:none}}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 22px;border-radius:6px;border:0;background:var(--ink);color:var(--paper);font:600 15.5px/1 var(--body);text-decoration:none;cursor:pointer}
.btn:hover{background:#000}
.btn.signal{background:var(--signal);color:#fff} .btn.signal:hover{background:#c4460f}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}
.btn.sm{min-height:40px;padding:0 16px;font-size:14px}

section{padding-block:clamp(56px,8vw,104px)}
.sheet{background:var(--sheet);border-block:1px solid var(--line)}
.sechead{display:grid;gap:14px;max-width:760px;margin-bottom:40px}
.sechead p{color:var(--graphite);font-size:18px}

/* hero */
.hero{padding-block:clamp(40px,6vw,80px) clamp(48px,7vw,88px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(32px,5vw,64px);align-items:center}
@media (max-width:940px){.hero-grid{grid-template-columns:minmax(0,1fr)}}
.hero .copy{display:grid;gap:22px;justify-items:start}
.hero h1 em{font-style:normal;color:var(--signal)}
.lede{font-size:clamp(18px,1.7vw,21px);color:var(--graphite);max-width:54ch}
.ctas{display:flex;gap:12px;flex-wrap:wrap}

/* scorecard (example) */
.card{background:var(--sheet);border:1px solid var(--ink);border-radius:10px;box-shadow:8px 8px 0 var(--ink);overflow:hidden}
.card-h{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.card-h b{font-family:var(--display);font-size:17px}
.card-h span{font-family:var(--mono);font-size:11px;color:var(--graphite);letter-spacing:.06em}
.sc{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.sc th{font-family:var(--mono);font-weight:400;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--graphite);text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}
.sc th:first-child,.sc td:first-child{padding-left:16px}
.sc td{padding:11px 8px;border-bottom:1px solid var(--line)}
.sc tr:last-child td{border-bottom:0}
.sc td:first-child{font-weight:600;white-space:nowrap}
.dot{display:inline-flex;align-items:center;justify-content:center;width:26px;height:22px;border-radius:4px;font-family:var(--mono);font-size:11px;font-weight:500}
.d0{background:#f7d9cc;color:#8d2e07}.d1{background:#f3e7c4;color:#6d5304}.d2{background:#d7eadf;color:#1f5a3e}
.legend{display:flex;flex-wrap:wrap;gap:14px;padding:12px 18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--graphite)}
.legend span{display:inline-flex;gap:6px;align-items:center}
.th-f{color:var(--fin)!important}.th-p{color:var(--ppl)!important}.th-s{color:var(--sec)!important}.th-r{color:var(--rev)!important}
.scroll{overflow-x:auto}
.caption{font-size:13px;color:var(--graphite);margin-top:14px}

/* problem */
.problem{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:2px solid var(--ink)}
@media (max-width:900px){.problem{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.problem{grid-template-columns:minmax(0,1fr)}}
.problem div{padding:22px 22px 26px 0;display:grid;gap:8px;align-content:start;border-bottom:1px solid var(--line)}
.problem b{font-family:var(--display);font-size:20px}
.problem p{color:var(--graphite);font-size:15.5px}
.problem .k{font-family:var(--mono);font-size:12px;color:var(--signal)}

/* tracks */
.tracks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:800px){.tracks{grid-template-columns:minmax(0,1fr)}}
.track{background:var(--sheet);border:1px solid var(--line);border-radius:10px;padding:24px;display:grid;gap:14px;align-content:start;border-top:5px solid var(--c)}
.track .hd{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.track .hd span{font-family:var(--mono);font-size:11.5px;color:var(--c);letter-spacing:.08em;text-transform:uppercase}
.track ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.track li{display:grid;grid-template-columns:16px 1fr;gap:10px;font-size:15.5px;line-height:1.45}
.track li::before{content:"";width:9px;height:9px;margin-top:6px;background:var(--c);border-radius:2px}
.track .out{font-size:14.5px;border-top:1px dashed var(--line);padding-top:12px;color:var(--graphite)}
.track .out b{color:var(--ink)}

/* timeline */
.tl{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:900px){.tl{grid-template-columns:minmax(0,1fr)}}
.ph{background:var(--sheet);border:1px solid var(--line);border-radius:10px;padding:20px;display:grid;gap:10px;align-content:start}
.ph .w{font-family:var(--mono);font-size:12px;color:var(--signal)}
.ph p{color:var(--graphite);font-size:15.5px}
.bars{display:grid;grid-template-columns:repeat(13,minmax(0,1fr));gap:3px;margin:22px 0 6px}
.bars i{height:10px;border-radius:2px;background:var(--line)}
.bars i.a{background:#c9ccc2}.bars i.b{background:var(--ink)}.bars i.c{background:var(--signal)}
.weeks{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--graphite)}

/* doors */
.doors{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:860px){.doors{grid-template-columns:minmax(0,1fr)}}
.door{border-radius:12px;padding:clamp(24px,3vw,36px);display:grid;gap:16px;align-content:start}
.door.vc{background:var(--ink);color:var(--paper)}
.door.fo{background:var(--sheet);border:1px solid var(--ink)}
.door h2{font-size:clamp(28px,3vw,40px)}
.door ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}
.door li{display:grid;grid-template-columns:22px 1fr;gap:10px}
.door li::before{content:"→";font-family:var(--mono);color:var(--signal)}
.door.vc .tag{color:#aab0b8}
.door.vc .btn{background:var(--signal);color:#fff}

/* why now */
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:860px){.facts{grid-template-columns:minmax(0,1fr)}}
.fact{border-top:2px solid var(--ink);padding-top:16px;display:grid;gap:8px;align-content:start}
.fact b{font-family:var(--display);font-size:clamp(30px,3.4vw,42px);font-weight:800;letter-spacing:-.02em}
.fact p{color:var(--graphite);font-size:15.5px}
.fact small{font-size:12.5px;color:var(--graphite)}
.fact small a{color:var(--graphite)}

/* contact */
.contact .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:start}
@media (max-width:860px){.contact .wrap{grid-template-columns:minmax(0,1fr)}}
form{background:var(--sheet);border:1px solid var(--ink);border-radius:10px;padding:24px;display:grid;gap:14px;box-shadow:8px 8px 0 var(--ink)}
.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--ink);border-radius:6px;overflow:hidden}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg label{display:flex;align-items:center;justify-content:center;min-height:44px;cursor:pointer;font-weight:600;font-size:15px}
.seg input:checked+label{background:var(--ink);color:var(--paper)}
.seg input:focus-visible+label{outline:2px solid var(--signal);outline-offset:-4px}
label.f{display:grid;gap:6px;font-size:14px;font-weight:600}
input[type=text],input[type=email],select,textarea{font:inherit;font-size:16px;font-weight:400;color:var(--ink);background:var(--paper);border:1px solid #b9bcb2;border-radius:6px;padding:11px 12px;min-height:46px;width:100%}
textarea{min-height:100px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.row{grid-template-columns:1fr}}
.status{background:var(--paper);border-radius:6px;padding:10px 12px;font-size:14.5px}
footer{border-top:1px solid var(--line);padding-block:28px;font-size:14px;color:var(--graphite)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

.t-fin{--c:var(--fin)}.t-ppl{--c:var(--ppl)}.t-sec{--c:var(--sec)}.t-rev{--c:var(--rev)}
.sechead.mt{margin-top:72px}.sechead.m0{margin:0}.tl.mt22{margin-top:22px}
.soon{background:var(--sheet);border:1px solid var(--ink);border-radius:10px;padding:24px;display:grid;gap:12px;box-shadow:8px 8px 0 var(--ink)}
.soon p{color:var(--graphite)}
.soon ul{margin:4px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.soon li{display:grid;grid-template-columns:22px 1fr}
.soon li::before{content:"→";font-family:var(--mono);color:var(--signal)}
[id]{scroll-margin-top:84px}