@font-face{font-family:"Oswald";font-weight:500;font-display:swap;src:url(fonts/oswald-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Oswald";font-weight:600;font-display:swap;src:url(fonts/oswald-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Oswald";font-weight:700;font-display:swap;src:url(fonts/oswald-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:400;font-display:swap;src:url(fonts/inter-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:500;font-display:swap;src:url(fonts/inter-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:600;font-display:swap;src:url(fonts/inter-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Source Serif";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/source-serif-4-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Source Serif";font-weight:400;font-style:italic;font-display:swap;src:url(fonts/source-serif-4-latin-400-italic.woff2) format("woff2")}

:root{
  --paper:#f6f4f0;
  --paper-2:#ecE8e1;
  --ink:#16171a;
  --ink-2:#4a4c52;
  --muted:#7b7d83;
  --gold:#b0832f;
  --gold-2:#c99a45;
  --navy:#16243d;
  --line:#d9d3c8;
  --display:"Oswald","Arial Narrow",Impact,sans-serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Source Serif",Georgia,"Times New Roman",serif;
  --wrap:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (max-width:600px){.wrap{padding:0 16px}body{font-size:16px}}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(246,244,240,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.scrolled{border-color:var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--display);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:15px;text-decoration:none}
.brand span{color:var(--gold)}
.nav{display:flex;gap:28px;font-size:14px;font-weight:500}
.nav a{text-decoration:none;color:var(--ink-2)}
.nav a:hover{color:var(--ink)}
.nav .cta{color:var(--ink);border-bottom:2px solid var(--gold)}
@media (max-width:820px){.nav a:not(.cta){display:none}}

/* hero */
.hero{padding:72px 0 96px;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.eyebrow{font-family:var(--display);font-weight:500;letter-spacing:.18em;text-transform:uppercase;font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:32px;height:1px;background:var(--gold)}
h1{font-family:var(--display);font-weight:700;text-transform:uppercase;line-height:.98;letter-spacing:.005em;font-size:clamp(48px,7.4vw,96px);margin:20px 0 24px}
h1 em{font-style:normal;color:var(--gold)}
.hero .sub{font-family:var(--display);font-weight:500;text-transform:uppercase;letter-spacing:.06em;font-size:clamp(17px,2vw,21px);margin:0 0 20px}
.hero .lead{font-family:var(--serif);font-size:clamp(19px,2vw,22px);line-height:1.55;color:var(--ink-2);max-width:34ch;margin:0 0 36px}
.btns{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;font-weight:600;font-size:15px;text-decoration:none;border-radius:2px;transition:transform .15s,background .15s}
.btn-primary{background:var(--ink);color:var(--paper)}
.soon{display:inline-flex;align-items:center;gap:10px;padding:15px 4px;font-family:var(--display);font-weight:500;text-transform:uppercase;letter-spacing:.14em;font-size:14px;color:var(--gold)}
.soon::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(176,131,47,.18)}
.btn-primary:hover{background:#000;transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.cover{position:relative;justify-self:center;max-width:400px;width:100%}
.cover img{width:100%;box-shadow:0 2px 4px rgba(0,0,0,.08),0 30px 60px -20px rgba(20,20,30,.45);border-radius:2px 6px 6px 2px}
.cover::after{content:"";position:absolute;inset:0;border-radius:2px 6px 6px 2px;background:linear-gradient(90deg,rgba(0,0,0,.18) 0,rgba(255,255,255,.15) 1.2%,rgba(0,0,0,0) 3.5%);pointer-events:none}
@media (max-width:860px){.hero{padding:40px 0 72px}.hero .wrap{grid-template-columns:1fr;gap:48px}.cover{max-width:300px;order:-1}}

/* sections */
section{padding:104px 0}
@media (max-width:600px){section{padding:72px 0}}
.label{font-family:var(--display);font-weight:500;letter-spacing:.2em;text-transform:uppercase;font-size:13px;color:var(--gold);margin:0 0 16px}
h2{font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:clamp(34px,4.6vw,56px);line-height:1.04;margin:0 0 28px}
h3{font-family:var(--display);font-weight:600;text-transform:uppercase;letter-spacing:.03em;font-size:21px;line-height:1.2;margin:0 0 10px}
.prose p{max-width:62ch;margin:0 0 1.1em}
.big{font-family:var(--serif);font-size:clamp(21px,2.4vw,27px);line-height:1.5;max-width:30ch}

/* problem */
.problem{background:var(--ink);color:#e9e6df}
.problem h2{color:#fff}
.problem h2 em{font-style:normal;color:var(--gold-2)}
.problem .grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.problem .q{font-family:var(--serif);font-size:clamp(22px,2.6vw,30px);line-height:1.4;color:#fff;border-left:2px solid var(--gold-2);padding-left:28px;margin:0}
.problem .same{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:6px;color:#b9b6ae}
.problem .same li::before{content:"— ";color:var(--gold-2)}
.problem .answer{margin-top:40px;font-family:var(--display);font-weight:600;text-transform:uppercase;letter-spacing:.04em;font-size:20px;line-height:1.35;color:var(--gold-2)}
@media (max-width:860px){.problem .grid{grid-template-columns:1fr;gap:40px}}

/* excerpt */
.excerpt .wrap{max-width:820px}
.excerpt blockquote{margin:0;font-family:var(--serif);font-size:clamp(20px,2.3vw,25px);line-height:1.6;color:var(--ink)}
.excerpt blockquote p{margin:0 0 .9em}
.excerpt blockquote p.short{font-style:italic;color:var(--ink-2)}
.excerpt cite{display:block;font-style:normal;font-size:14px;color:var(--muted);margin-top:24px;letter-spacing:.04em}

/* model */
.model{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.model .intro{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:end;margin-bottom:56px}
@media (max-width:860px){.model .intro{grid-template-columns:1fr;gap:16px}}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:s;border-top:1px solid var(--ink)}
.steps li{counter-increment:s;padding:28px 22px 8px 0;position:relative}
.steps li::before{content:"0" counter(s);display:block;font-family:var(--display);font-weight:700;font-size:44px;line-height:1;color:var(--gold);margin-bottom:16px}
.steps li:not(:last-child)::after{content:"→";position:absolute;right:10px;top:34px;color:var(--muted);font-size:20px}
.steps p{margin:0;font-size:15px;color:var(--ink-2)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}.steps li::after{display:none}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
.resources{margin-top:56px;padding:32px;background:var(--paper);border:1px dashed #9aa58c;display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:center}
.resources .tags{display:flex;flex-wrap:wrap;gap:10px}
.resources .tags span{background:#fff;border:1px solid var(--line);padding:7px 14px;font-size:14px;font-weight:500}
@media (max-width:760px){.resources{grid-template-columns:1fr;gap:16px;padding:24px}}
.figure{margin:64px 0 0}
.figure img{width:100%;border:1px solid var(--line);cursor:zoom-in}
.figure figcaption{font-size:14px;color:var(--muted);margin-top:12px}

/* paths */
.paths .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.path{background:#fff;border:1px solid var(--line);padding:28px 24px;display:flex;flex-direction:column;gap:12px}
.path .where{font-family:var(--display);font-weight:600;text-transform:uppercase;color:var(--gold);letter-spacing:.06em;font-size:15px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.path p{margin:0;font-size:15.5px;color:var(--ink-2)}
@media (max-width:960px){.paths .grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.paths .grid{grid-template-columns:1fr}}

/* toc */
.toc .cols{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:40px}
.toc h3{color:var(--gold);font-size:17px;letter-spacing:.12em;margin-bottom:16px}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{display:grid;grid-template-columns:44px 1fr;padding:13px 0;border-bottom:1px solid var(--line);font-size:16px}
.toc li b{font-family:var(--display);font-weight:600;color:var(--muted)}
.toc li small{display:block;color:var(--muted);font-size:14px;margin-top:2px}
@media (max-width:860px){.toc .cols{grid-template-columns:1fr;gap:40px}}

/* author */
.author{background:var(--paper-2)}
.author .grid{display:grid;grid-template-columns:320px 1fr;gap:72px;align-items:center}
.author img{width:100%;max-width:320px;filter:saturate(.92)}
.author .creds{display:flex;flex-wrap:wrap;gap:12px 32px;margin:28px 0 0;padding:24px 0 0;border-top:1px solid var(--line)}
.author .creds div{font-size:14px;color:var(--ink-2)}
.author .creds strong{display:block;font-family:var(--display);font-weight:600;font-size:26px;color:var(--ink);line-height:1.1}
@media (max-width:860px){.author .grid{grid-template-columns:1fr;gap:36px}.author img{max-width:240px}}

/* closing */
.closing{background:var(--ink);color:#fff;text-align:center}
.closing h2{color:#fff;margin-bottom:12px}
.closing h2 em{font-style:normal;color:var(--gold-2)}
.closing .tag{font-family:var(--display);text-transform:uppercase;letter-spacing:.06em;font-size:19px;color:#c9c5bc;margin:0 0 44px}
.closing .tag em{font-style:normal;color:var(--gold-2)}
.closing .btn-primary{background:var(--gold-2);color:var(--ink)}
.closing .btn-primary:hover{background:#d8aa55}
.closing .btn-ghost{border-color:#fff;color:#fff}
.closing .btn-ghost:hover{background:#fff;color:var(--ink)}
.closing .btns{justify-content:center}
.closing .note{margin-top:28px;font-size:14px;color:#9a978f}

/* footer */
footer{padding:40px 0;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
footer nav{display:flex;gap:24px}
footer a{text-decoration:none}
footer a:hover{color:var(--ink)}

/* legal pages */
.legal{padding:64px 0 96px}
.legal .wrap{max-width:780px}
.legal h1{font-size:clamp(40px,6vw,64px)}
.legal h2{font-size:24px;margin:40px 0 12px}
.legal p,.legal li{color:var(--ink-2)}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(10,10,14,.92);display:none;align-items:center;justify-content:center;z-index:50;padding:16px;cursor:zoom-out}
.lb.open{display:flex}
.lb img{max-height:100%;max-width:100%;object-fit:contain}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}