:root{
  --ink:#14284A; --ink-soft:#2C3E5C;
  --paper:#F8F8F7; --paper-alt:#EEEEF0; --card:#FFFFFF;
  --brass:#A08555; --brass-bright:#BE9C68; --brass-dim:#7C6740;
  --slate:#5A6472; --slate-2:#8891A0;
  --line:#E1E2E6; --line-soft:#EAEBEE; --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Inter',system-ui,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Newsreader',Georgia,serif;font-weight:500;margin:0;color:inherit}
a{color:inherit}
img,video{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.eyebrow{font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;color:var(--brass-dim);display:flex;align-items:center;gap:.6em}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--brass)}
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.8em 1.5em;font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;text-decoration:none;border:1px solid currentColor;border-radius:2px;transition:.2s}
.btn-solid{background:var(--brass);color:#fff;border-color:var(--brass)}
.btn-solid:hover{background:var(--brass-bright);border-color:var(--brass-bright)}
.btn-line{color:var(--ink);border-color:var(--line)}
.btn-line:hover{border-color:var(--brass);color:var(--brass-dim)}
.link-arrow{font-family:'IBM Plex Mono',monospace;font-size:.8rem;color:var(--brass-dim);text-decoration:none;border-bottom:1px solid var(--brass);padding-bottom:2px}
.link-arrow:hover{color:var(--brass)}
header{position:sticky;top:0;z-index:50;background:rgba(248,248,247,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
nav.wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{display:flex;flex-direction:column;line-height:1;text-decoration:none}
.logo .mark{font-family:'Newsreader',serif;font-weight:600;font-size:1rem;color:var(--ink)}
.logo .tag{font-family:'IBM Plex Mono',monospace;font-size:.54rem;letter-spacing:.09em;color:var(--brass-dim);margin-top:3px}
.nav-links{display:flex;gap:20px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav-links a{font-size:.82rem;color:var(--slate);text-decoration:none}
.nav-links a:hover,.nav-links a.active{color:var(--brass-dim)}
@media(max-width:900px){.nav-links{display:none}}
.hero{padding:64px 0 56px}
.hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.1;margin:18px 0 18px}
.hero p.lede{font-size:1.03rem;color:var(--slate);max-width:62ch;margin:0 0 26px}
.hero .stats{display:flex;gap:28px;flex-wrap:wrap;font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--brass-dim);letter-spacing:.04em}
.hero .stats b{color:var(--ink);font-weight:600}
section{padding:56px 0}
section.alt{background:var(--paper-alt)}
.section-head{max-width:640px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-top:12px}
.section-head p{margin-top:12px;color:var(--slate);font-size:.98rem}
.sec-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:860px){.sec-grid{grid-template-columns:1fr}}
.sec-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:26px 26px 24px;display:flex;flex-direction:column;text-decoration:none;transition:border-color .2s}
.sec-card:hover{border-color:var(--brass)}
.sec-card .num{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--brass-dim);letter-spacing:.1em}
.sec-card h3{font-size:1.15rem;margin:10px 0 8px}
.sec-card p{color:var(--slate);font-size:.9rem;margin:0 0 16px;flex:1}
.sec-card .meta{font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--slate-2)}
.lesson-list{display:flex;flex-direction:column;gap:34px}
.lesson{background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lesson .vid{background:#0D1B2C}
.lesson video{width:100%;height:auto;display:block}
.lesson .body{padding:18px 24px 20px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.lesson .lnum{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--brass-dim);letter-spacing:.08em;white-space:nowrap}
.lesson h3{font-size:1.1rem}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:44px;flex-wrap:wrap}
footer{background:var(--ink);color:rgba(255,255,255,.68);padding:48px 0 26px;font-size:.85rem;margin-top:40px}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-brand .mark{font-family:'Newsreader',serif;font-weight:600;font-size:1rem;color:#fff}
.footer-brand p{margin:12px 0 0;max-width:38ch;color:rgba(255,255,255,.62);font-size:.85rem}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.footer-links a{color:rgba(255,255,255,.68);text-decoration:none;font-size:.83rem}
.footer-links a:hover{color:#fff}
.disclosure{padding-top:22px;font-size:.74rem;color:rgba(255,255,255,.4);line-height:1.7;max-width:880px}
.copyright{margin-top:14px;font-size:.74rem;color:rgba(255,255,255,.4);font-family:'IBM Plex Mono',monospace}