/* PaperMigo — research papers as a friendly feed.
   Layout: narrow editorial column, one hero with a fanned stack of paper cards, sections separated by space not boxes. */
:root{
  --paper:#F5F6F1; --surface:#FFFFFF; --ink:#11151A; --muted:#5C636E; --line:#DCDFD6;
  --migo:#1F5BFF; --migo-ink:#FFFFFF; --spark:#F2603A;
  --sky:#DCE5FF; --mint:#D3EEDF; --peach:#FFE2D4; --lilac:#ECDFFF; --butter:#FFF0BF;
  --font-display:"Bricolage Grotesque",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Atkinson Hyperlegible",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --measure:64ch; --wide:1120px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0D1013; --surface:#161A1F; --ink:#EEF0F2; --muted:#9AA2AC; --line:#272C33;
  --migo:#7398FF; --migo-ink:#0A0F1F; --spark:#FF8A63;
  --sky:#1D2846; --mint:#163327; --peach:#3A2418; --lilac:#2B2140; --butter:#363015; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0D1013; --surface:#161A1F; --ink:#EEF0F2; --muted:#9AA2AC; --line:#272C33;
  --migo:#7398FF; --migo-ink:#0A0F1F; --spark:#FF8A63;
  --sky:#1D2846; --mint:#163327; --peach:#3A2418; --lilac:#2B2140; --butter:#363015; color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.6}
img,svg{max-width:100%}
a{color:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--migo);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wide);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:var(--surface);padding:8px 12px;z-index:50}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em}
.brand svg{width:30px;height:30px;flex:none}
.links{display:flex;gap:4px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.links a{text-decoration:none;font-size:15px;padding:7px 11px;border-radius:999px;color:var(--muted)}
.links a:hover{color:var(--ink)}
.links a[aria-current="page"]{color:var(--ink);background:var(--surface)}
@media (max-width:560px){.links{flex-wrap:nowrap;gap:0}.links a.hide-sm{display:none}.links a{padding:6px 8px;font-size:14px}.brand{font-size:19px;gap:7px}.brand svg{width:26px;height:26px}}

/* type */
h1,h2,h3{font-family:var(--font-display);letter-spacing:-.02em;text-wrap:balance;margin:0}
h1{font-size:clamp(40px,7.2vw,78px);line-height:1.02;font-weight:800}
h2{font-size:clamp(28px,4vw,40px);line-height:1.1;font-weight:800}
h3{font-size:20px;line-height:1.25;font-weight:700}
p{margin:0}
.eyebrow{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.lede{font-size:clamp(18px,2.1vw,21px);color:var(--muted);max-width:var(--measure)}
.prose{max-width:var(--measure);display:flex;flex-direction:column;gap:16px}
.prose p{color:var(--ink)}
.muted{color:var(--muted)}
em.hl{font-style:normal;background:linear-gradient(transparent 62%,var(--butter) 62%)}

/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:999px;text-decoration:none;font-weight:700;font-size:16px;border:1.5px solid transparent;cursor:pointer;font-family:inherit}
.btn.primary{background:var(--migo);color:var(--migo-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{border-color:var(--line);background:var(--surface);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}

/* sections */
section{padding-block:clamp(56px,9vw,104px)}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:36px;max-width:760px}
.rule{border:0;border-top:1px solid var(--line);margin:0}

/* hero */
.hero{padding-block:clamp(40px,7vw,88px) clamp(48px,8vw,96px)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:24px;min-width:0}
.hero h1 .migo{color:var(--migo)}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}}

/* fanned card stack (illustration) */
.stack{position:relative;height:420px;min-width:0}
.pc{position:absolute;left:50%;top:50%;width:min(270px,70vw);border-radius:18px;padding:18px 18px 16px;box-shadow:0 1px 0 var(--line),0 18px 40px -22px rgb(0 0 0 / .35);display:flex;flex-direction:column;gap:12px;color:var(--ink)}
.pc .tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;opacity:.75}
.pc .ln{height:12px;border-radius:6px;background:currentColor;opacity:.82}
.pc .ln.s{opacity:.25;height:8px}
.pc .foot{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:10.5px;opacity:.6;margin-top:4px}
.pc.a{background:var(--peach);transform:translate(-78%,-62%) rotate(-9deg)}
.pc.b{background:var(--mint);transform:translate(-30%,-38%) rotate(6deg)}
.pc.c{background:var(--sky);transform:translate(-52%,-20%) rotate(-2deg)}
.spark-dot{position:absolute;right:8%;top:8%;width:54px;height:54px;color:var(--spark)}
@media (prefers-reduced-motion:no-preference){
  .pc{transition:transform .5s cubic-bezier(.2,.8,.2,1)}
  .stack:hover .pc.a{transform:translate(-86%,-66%) rotate(-12deg)}
  .stack:hover .pc.b{transform:translate(-20%,-42%) rotate(9deg)}
}
@media (max-width:860px){.stack{height:340px}}
@media (max-width:420px){.stack{height:300px}.pc{width:220px}}

/* problem list */
.problems{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.problems > div{border-top:2px solid var(--ink);padding-top:16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.problems .num{font-family:var(--font-display);font-weight:800;font-size:38px;line-height:1;font-variant-numeric:tabular-nums}
@media (max-width:760px){.problems{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{background:var(--surface);border-radius:20px;padding:24px;display:flex;flex-direction:column;gap:12px;min-width:0}
.step .k{font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.step .k::before{counter-increment:s;content:"0" counter(s) " · "}
.step .sw{width:44px;height:44px;border-radius:12px;display:grid;place-items:center}
.step .sw svg{width:24px;height:24px}
@media (max-width:860px){.steps{grid-template-columns:1fr}}

/* principles */
.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.pr{display:grid;grid-template-columns:28px 1fr;gap:14px;padding-block:20px;border-top:1px solid var(--line)}
.pr svg{width:24px;height:24px;color:var(--migo);margin-top:2px}
.pr h3{font-size:18px;margin-bottom:4px}
.pr p{color:var(--muted);font-size:16px}
@media (max-width:760px){.principles{grid-template-columns:1fr}}

/* fields */
.fields{display:flex;flex-wrap:wrap;gap:10px}
.field{padding:9px 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:15.5px}
.field.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* band */
.band{background:var(--ink);color:var(--paper);border-radius:28px;padding:clamp(32px,6vw,64px);display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:end}
.band .lede{color:color-mix(in srgb,var(--paper) 72%,transparent)}
.band .btn.primary{background:var(--paper);color:var(--ink)}
.band .btn.ghost{background:transparent;color:var(--paper);border-color:color-mix(in srgb,var(--paper) 35%,transparent)}
@media (max-width:760px){.band{grid-template-columns:1fr}}

/* roadmap */
.road{display:flex;flex-direction:column;gap:0;max-width:820px}
.ph{display:grid;grid-template-columns:150px 1fr;gap:24px;padding-block:22px;border-top:1px solid var(--line)}
.ph .when{font-family:var(--font-mono);font-size:13px;color:var(--muted);padding-top:3px}
.ph .state{display:inline-block;font-family:var(--font-mono);font-size:11px;padding:2px 8px;border-radius:999px;margin-left:8px;vertical-align:3px}
.state.now{background:var(--migo);color:var(--migo-ink)}
.state.next{background:var(--surface);border:1px solid var(--line);color:var(--muted)}
.ph p{color:var(--muted);margin-top:6px}
@media (max-width:600px){.ph{grid-template-columns:1fr;gap:6px}}

/* two col */
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.two > *{min-width:0}
@media (max-width:860px){.two{grid-template-columns:1fr;gap:32px}}
.not{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.not li{display:grid;grid-template-columns:22px 1fr;gap:10px;color:var(--muted)}
.not li::before{content:"×";font-family:var(--font-mono);color:var(--spark);font-weight:700}

/* founder */
.founder{display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:start;background:var(--surface);border-radius:24px;padding:28px}
.avatar{width:120px;height:120px;border-radius:24px;background:var(--sky);display:grid;place-items:center;font-family:var(--font-display);font-weight:800;font-size:44px;color:var(--migo)}
@media (max-width:600px){.founder{grid-template-columns:1fr}.avatar{width:84px;height:84px;font-size:32px;border-radius:18px}}

/* contact */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cc{background:var(--surface);border-radius:20px;padding:24px;display:flex;flex-direction:column;gap:10px;min-width:0}
.cc p{color:var(--muted);font-size:16px;flex:1}
.cc a.mail{font-family:var(--font-mono);font-size:14px;color:var(--migo);text-decoration:none;word-break:break-all}
@media (max-width:860px){.cards{grid-template-columns:1fr}}
.mailbox{display:flex;flex-wrap:wrap;align-items:center;gap:12px;background:var(--surface);border-radius:20px;padding:20px 22px;margin-top:28px}
.mailbox .addr{font-family:var(--font-mono);font-size:clamp(18px,3vw,26px);font-weight:500;word-break:break-all;flex:1;min-width:0}
.copy{font:inherit;font-size:14px;padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer}

/* footer */
footer{border-top:1px solid var(--line);margin-top:40px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-block:28px 40px;font-size:14px;color:var(--muted)}
footer nav{display:flex;gap:16px;flex-wrap:wrap}
footer a{text-decoration:none}
footer a:hover{color:var(--ink)}