:root{
  --ink:#0A0F17;
  --ink-2:#0D131D;
  --graphite:#141B26;
  --raised:#1A2331;
  --line-d:rgba(255,255,255,.10);
  --line-d-strong:rgba(255,255,255,.18);
  --paper:#F1F3F6;
  --paper-warm:#FAFAF8;
  --slate:#19212E;
  --slate-soft:#3A4554;
  --muted-d:#8493A6;
  --muted-l:#5C6878;
  --signal:#EBA53C;
  --signal-soft:#F6D08A;
  --trace:#7C93A8;

  --f-display:"Archivo", system-ui, sans-serif;
  --f-serif:"Spectral", Georgia, serif;
  --f-mono:"IBM Plex Mono", ui-monospace, monospace;

  --maxw:1120px;
  --read:38rem;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:#E7ECF2;
  font-family:var(--f-serif);
  font-size:18px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
::selection{background:var(--signal);color:var(--ink);}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}

.mono{
  font-family:var(--f-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
}

/* ---------- NAV ---------- */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,15,23,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-d);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:800;letter-spacing:-.01em;font-size:1.05rem;color:#fff;}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 4px rgba(235,165,60,.18);}
.brand b{font-weight:400;color:var(--muted-d);font-family:var(--f-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;margin-left:2px;}
.nav-links{display:flex;gap:26px;align-items:center;}
.nav-links a{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-d);transition:color .2s;}
.nav-links a:hover{color:#fff;}
.nav-cta{color:var(--signal)!important;}
@media(max-width:720px){.nav-links a:not(.nav-cta){display:none;}}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;background:
    radial-gradient(120% 90% at 78% 12%, rgba(235,165,60,.07), transparent 55%),
    linear-gradient(180deg,#0A0F17 0%, #0B1119 100%);
  border-bottom:1px solid var(--line-d);
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:84px 0 76px;
}
.eyebrow{color:var(--signal);margin:0 0 22px;}
h1{
  font-family:var(--f-display);font-weight:800;
  font-size:clamp(2.5rem,5.6vw,4.4rem);
  line-height:1.02;letter-spacing:-.025em;color:#fff;margin:0 0 26px;
}
h1 em{font-style:normal;color:var(--signal);}
.lede{font-size:1.18rem;line-height:1.62;color:#C3CDD9;max-width:34rem;margin:0 0 34px;}
.lede b{color:#fff;font-weight:600;}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.btn{
  font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  padding:14px 22px;border-radius:2px;display:inline-flex;align-items:center;gap:10px;
  transition:transform .18s ease, background .2s, border-color .2s;
}
.btn-primary{background:var(--signal);color:var(--ink);font-weight:600;}
.btn-primary:hover{transform:translateY(-2px);background:var(--signal-soft);}
.btn-ghost{border:1px solid var(--line-d-strong);color:#DCE3EC;}
.btn-ghost:hover{border-color:var(--signal);color:#fff;}
.btn .arr{font-family:var(--f-mono);}

/* signature visual */
.signature{position:relative;}
.signature svg{width:100%;height:auto;display:block;overflow:visible;}
.sig-caption{margin-top:14px;color:var(--muted-d);text-align:right;}

@media(max-width:880px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:60px 0 56px;}
  .signature{order:2;}
  .sig-caption{text-align:left;}
}

/* ---------- THESIS / FIVE PROPERTIES ---------- */
.thesis{background:var(--ink-2);border-bottom:1px solid var(--line-d);padding:84px 0;}
.sec-head{max-width:42rem;margin-bottom:52px;}
.sec-head .eyebrow{color:var(--signal);margin-bottom:18px;}
.sec-head h1,.sec-head h2{
  font-family:var(--f-display);font-weight:700;color:#fff;
  font-size:clamp(1.7rem,3.2vw,2.5rem);line-height:1.1;letter-spacing:-.02em;margin:0 0 16px;
}
.sec-head p{color:#AEBAC8;font-size:1.06rem;margin:0;max-width:36rem;}

.props{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d);border-radius:3px;overflow:hidden;}
.prop{background:var(--graphite);padding:30px 28px;display:flex;flex-direction:column;gap:12px;transition:background .25s;}
.prop:hover{background:var(--raised);}
.prop .num{color:var(--signal);}
.prop h3{font-family:var(--f-display);font-weight:600;font-size:1.18rem;color:#fff;margin:0;letter-spacing:-.01em;}
.prop p{margin:0;color:#9FACBC;font-size:1rem;line-height:1.55;}
.prop:last-child:nth-child(odd){grid-column:1 / -1;}
@media(max-width:720px){.props{grid-template-columns:1fr;} .prop:last-child:nth-child(odd){grid-column:auto;}}

/* ---------- WHITEPAPER (paper surface) ---------- */
.paper-band{background:var(--paper);color:var(--slate);}
.paper-band ::selection{background:var(--slate);color:var(--paper);}
.paper-top{
  border-bottom:1px solid #DADEE5;padding:70px 0 46px;
  background:linear-gradient(180deg,#FBFCFD,var(--paper));
}
.doc-meta{display:flex;gap:20px;flex-wrap:wrap;align-items:center;color:var(--muted-l);margin-bottom:26px;}
.tag{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:2px;}
.tag-live{background:var(--signal);color:var(--ink);font-weight:600;}
.tag-out{border:1px solid #C9D0DA;color:var(--muted-l);}
.paper-top h1{
  font-family:var(--f-display);font-weight:800;color:var(--slate);
  font-size:clamp(2rem,4.4vw,3.3rem);line-height:1.05;letter-spacing:-.025em;
  max-width:20ch;margin:0 0 22px;
}
.byline{font-family:var(--f-mono);font-size:.82rem;letter-spacing:.04em;color:var(--slate-soft);}
.byline b{color:var(--slate);font-weight:600;}

.essay{padding:18px 0 84px;}
.essay-col{max-width:var(--read);margin:0 auto;}
.essay-col p{font-size:1.16rem;line-height:1.74;color:#283140;margin:0 0 1.35em;}
.essay-col p.dek{font-size:1.28rem;line-height:1.6;color:var(--slate);font-style:italic;border-left:3px solid var(--signal);padding-left:22px;margin:8px 0 2.4em;}
.essay-col h3{
  font-family:var(--f-display);font-weight:700;color:var(--slate);
  font-size:1.5rem;line-height:1.2;letter-spacing:-.015em;margin:2.6em 0 .7em;
}
.essay-col h3 .h-num{font-family:var(--f-mono);font-weight:500;font-size:.8rem;color:var(--signal);display:block;letter-spacing:.14em;margin-bottom:8px;}
.pull{
  font-family:var(--f-serif);font-weight:500;font-style:italic;
  font-size:1.7rem;line-height:1.32;color:var(--slate);
  margin:1.8em 0;padding:6px 0 6px 0;text-align:left;
  border-top:1px solid #D2D8E0;border-bottom:1px solid #D2D8E0;padding:.8em 0;
}
.qlist{list-style:none;padding:0;margin:1.4em 0 1.8em;display:grid;gap:0;border:1px solid #D7DCE4;border-radius:4px;overflow:hidden;}
.qlist li{padding:18px 22px;background:var(--paper-warm);border-bottom:1px solid #E2E6EC;font-size:1.04rem;line-height:1.5;color:#2C3543;display:flex;gap:14px;}
.qlist li:last-child{border-bottom:none;}
.qlist li::before{content:"?";font-family:var(--f-mono);color:var(--signal);font-weight:600;flex:none;}
.essay-end{margin-top:2.6em;padding-top:1.6em;border-top:1px solid #D2D8E0;font-size:.98rem;color:var(--muted-l);line-height:1.6;font-style:italic;}

/* back link on sub-pages */
.subnav-back{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-l);transition:color .2s;}
.subnav-back:hover{color:var(--slate);}
.paper-band .essay-col .subnav-back{margin-bottom:30px;}

/* ---------- SERIES ---------- */
.series{background:var(--ink);padding:88px 0;border-top:1px solid var(--line-d);}
.series .sec-head h1,.series .sec-head h2{color:#fff;}
.runway{border-top:1px solid var(--line-d);}
.post{
  display:grid;grid-template-columns:64px 1fr auto;gap:24px;align-items:baseline;
  padding:26px 8px;border-bottom:1px solid var(--line-d);
  transition:background .2s,padding-left .2s;
}
a.post:hover{background:rgba(235,165,60,.05);padding-left:18px;}
.post .pnum{font-family:var(--f-mono);font-size:1.05rem;color:var(--muted-d);}
a.post:hover .pnum{color:var(--signal);}
.post-body h3{font-family:var(--f-display);font-weight:600;font-size:1.22rem;color:#EEF2F7;margin:0 0 6px;letter-spacing:-.01em;line-height:1.25;}
.post-body p{margin:0;color:#92A0B1;font-size:1rem;line-height:1.5;max-width:52ch;}
.post-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right;}
.kind{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-d);}
.kind.build{color:var(--signal);}
.status{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;padding:4px 9px;border-radius:2px;}
.status.live{background:var(--signal);color:var(--ink);font-weight:600;}
.status.next{border:1px solid var(--line-d-strong);color:var(--muted-d);}
@media(max-width:680px){
  .post{grid-template-columns:40px 1fr;gap:14px;}
  .post-meta{grid-column:2;flex-direction:row;align-items:center;justify-content:flex-start;}
}

/* ---------- ABOUT ---------- */
.about{background:var(--paper);color:var(--slate);padding:84px 0;}
.about ::selection{background:var(--slate);color:var(--paper);}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.about-lead .eyebrow{color:#B07415;margin-bottom:18px;}
.about-lead h1{font-family:var(--f-display);font-weight:800;color:var(--slate);font-size:clamp(1.7rem,3.2vw,2.4rem);line-height:1.1;letter-spacing:-.02em;margin:0 0 22px;}
.about-lead p{font-size:1.1rem;line-height:1.65;color:#303A48;margin:0 0 1.1em;}
.about-lead p:last-child{margin-bottom:0;}
.proof{display:grid;gap:1px;background:#D7DCE4;border:1px solid #D7DCE4;border-radius:4px;overflow:hidden;}
.pf{background:var(--paper-warm);padding:20px 22px;}
.pf .pf-k{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:#B07415;margin-bottom:6px;}
.pf p{margin:0;font-size:.98rem;line-height:1.5;color:#2D3744;}
.pf p b{color:var(--slate);font-weight:600;}
@media(max-width:820px){.about-grid{grid-template-columns:1fr;gap:40px;}}

/* ---------- CONTACT / FOOTER ---------- */
.contact{background:linear-gradient(180deg,#0B1119,#0A0F17);padding:92px 0 0;border-top:1px solid var(--line-d);}
.contact-inner{max-width:46rem;}
.contact .eyebrow{color:var(--signal);margin-bottom:20px;}
.contact h2{font-family:var(--f-display);font-weight:700;color:#fff;font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.12;letter-spacing:-.02em;margin:0 0 20px;}
.contact p{color:#B6C1CE;font-size:1.12rem;line-height:1.6;margin:0 0 30px;max-width:38rem;}
.mailto{display:inline-block;border-bottom:2px solid transparent;transition:border-color .2s;line-height:0;}
.mailto:hover{border-color:var(--signal);}
.mailto img{display:block;height:42px;width:auto;}
.ref{margin-top:18px;color:var(--muted-d);}
footer{margin-top:88px;border-top:1px solid var(--line-d);padding:30px 0;}
.foot-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;color:var(--muted-d);}
.foot-inner .brand{font-size:.95rem;}
.foot-inner span{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:2px;}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .sig-draw{stroke-dasharray:none!important;stroke-dashoffset:0!important;}
}