:root{
  --paper:#f3eee4;
  --paper-2:#fbf8f2;
  --ink:#17191d;
  --muted:#686a6c;
  --blue:#2f67a0;
  --blue-dark:#183f69;
  --red:#c84b45;
  --yellow:#efc84b;
  --rule:#cbc3b5;
  --white:#fff;
  --shadow:0 18px 50px rgba(36,31,25,.10);
  --radius:18px;
  --sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif:"Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.6}
a{color:inherit}
img{max-width:100%;display:block}
button,input{font:inherit}
::selection{background:var(--yellow);color:var(--ink)}
.site-shell{max-width:1500px;margin:0 auto;padding:0 28px}
.topline{height:8px;background:linear-gradient(90deg,var(--red) 0 34%,var(--paper-2) 34% 51%,var(--blue) 51% 84%,var(--yellow) 84%)}
.header{position:sticky;top:0;z-index:100;background:rgba(243,238,228,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--rule)}
.navbar{min-height:78px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px}
.brand{display:flex;align-items:center;text-decoration:none;min-width:210px}
.brand img{width:196px;height:auto}
.nav-links{display:flex;justify-content:center;gap:28px;align-items:center}
.nav-links a{text-decoration:none;font-weight:750;font-size:.92rem;letter-spacing:.02em;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--red);transition:.2s}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-meta{display:flex;align-items:center;gap:12px}
.update-pill{font-family:var(--mono);font-size:.72rem;border:1px solid var(--ink);padding:7px 9px;background:var(--paper-2);white-space:nowrap}
.menu-btn{display:none;border:0;background:none;font-size:1.5rem;cursor:pointer}
.hero{padding:60px 0 38px;border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(340px,.65fr);gap:54px;align-items:end}
.eyebrow{display:flex;align-items:center;gap:12px;text-transform:uppercase;font-size:.73rem;font-weight:850;letter-spacing:.14em;margin-bottom:22px}
.eyebrow::before{content:"";display:block;width:44px;height:4px;background:var(--red)}
h1,h2,h3{font-family:var(--serif);line-height:1.02;margin:0}
.hero h1{font-size:clamp(2.8rem,5.6vw,6.4rem);letter-spacing:-.055em;max-width:1040px}
.hero h1 .arrow{font-family:var(--sans);font-weight:500;color:var(--blue);font-size:.62em;vertical-align:.12em}
.hero-copy{display:grid;grid-template-columns:1fr auto;gap:26px;align-items:end;margin-top:34px;max-width:930px}
.hero-copy p{font-size:1.08rem;max-width:720px;margin:0;color:#3f4143}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--ink);color:#fff;text-decoration:none;padding:14px 19px;font-weight:800;border:1px solid var(--ink);box-shadow:4px 4px 0 var(--red);transition:.15s}
.button:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--red)}
.button.secondary{background:transparent;color:var(--ink);box-shadow:none}
.hero-card{background:var(--paper-2);border:1px solid var(--ink);padding:28px;box-shadow:10px 10px 0 var(--yellow);transform:rotate(1.2deg)}
.hero-card .stamp{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;color:var(--red);font-weight:800;letter-spacing:.08em}
.hero-card h2{font-size:2rem;margin:12px 0 22px}
.step-list{list-style:none;padding:0;margin:0}
.step-list li{display:grid;grid-template-columns:32px 1fr;gap:11px;padding:11px 0;border-top:1px solid var(--rule);font-size:.93rem}
.step-list b{font-family:var(--mono);color:var(--blue)}
.marquee{overflow:hidden;border-bottom:1px solid var(--rule);background:var(--ink);color:#fff;white-space:nowrap}
.marquee-inner{display:inline-block;padding:10px 0;font-family:var(--mono);font-size:.78rem;letter-spacing:.05em;animation:scroll 34s linear infinite}
.marquee span{margin-right:34px}
.marquee i{color:var(--yellow);font-style:normal}
@keyframes scroll{to{transform:translateX(-50%)}}
.section{padding:78px 0;border-bottom:1px solid var(--rule)}
.section-head{display:grid;grid-template-columns:160px 1fr auto;gap:24px;align-items:end;margin-bottom:40px}
.kicker{font-family:var(--mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--red);font-weight:800}
.section-head h2{font-size:clamp(2.6rem,5vw,5.2rem);letter-spacing:-.04em}
.section-head p{max-width:430px;margin:0;color:var(--muted);font-size:.96rem}
.topic-controls{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 28px 184px}
.topic-controls button{border:1px solid var(--ink);background:transparent;padding:7px 11px;font-weight:750;cursor:pointer}
.topic-controls button.active,.topic-controls button:hover{background:var(--ink);color:#fff}
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.topic-card{min-height:245px;padding:22px;display:flex;flex-direction:column;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);text-decoration:none;background:rgba(255,255,255,.14);transition:.16s}
.topic-card:hover{background:var(--paper-2);transform:translateY(-3px);box-shadow:0 6px 0 var(--blue)}
.topic-no{font-family:var(--serif);font-size:3.3rem;line-height:1;color:var(--red);letter-spacing:-.06em}
.topic-tag{font-family:var(--mono);font-size:.67rem;text-transform:uppercase;letter-spacing:.07em;margin:14px 0 10px;color:var(--blue-dark);font-weight:800}
.topic-card h3{font-size:1.45rem;line-height:1.08;margin-bottom:auto}
.topic-card p{font-size:.85rem;color:var(--muted);margin:22px 0 0}
.alert-strip{display:grid;grid-template-columns:1.25fr .75fr;gap:0;border:1px solid var(--ink);background:var(--red);color:#fff}
.alert-main{padding:46px;border-right:1px solid var(--ink)}
.alert-main .kicker{color:var(--yellow)}
.alert-main h2{font-size:clamp(2.8rem,5vw,5.3rem);max-width:820px;margin:12px 0 20px}
.alert-main p{max-width:740px;font-size:1.08rem}
.alert-side{padding:38px;background:var(--paper-2);color:var(--ink)}
.alert-side ul{margin:18px 0 0;padding:0;list-style:none}
.alert-side li{padding:11px 0;border-top:1px solid var(--rule);font-weight:750}
.alert-side li::before{content:"→";color:var(--red);margin-right:10px}
.sponsor{padding:38px 0;border-bottom:1px solid var(--rule)}
.sponsor-box{min-height:112px;border:1px dashed #8e877d;background:rgba(255,255,255,.3);display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:28px;padding:22px 28px}
.sponsor-label{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sponsor-box strong{font-family:var(--serif);font-size:1.45rem}
.sponsor-box p{margin:2px 0 0;color:var(--muted);font-size:.88rem}
.sponsor-box .placeholder{font-family:var(--mono);border:1px solid var(--rule);padding:8px 10px;font-size:.68rem;color:var(--muted)}
.features{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.feature-card{position:relative;min-height:430px;border:1px solid var(--ink);padding:34px;background:var(--paper-2);overflow:hidden;text-decoration:none}
.feature-card.big{background:var(--blue-dark);color:white}
.feature-card.big::after{content:"$";position:absolute;right:-22px;bottom:-90px;font-family:var(--serif);font-size:20rem;color:rgba(255,255,255,.07)}
.feature-card .index{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--yellow)}
.feature-card h3{font-size:clamp(2.2rem,4vw,4.5rem);max-width:720px;margin:80px 0 18px}
.feature-card p{max-width:600px;color:inherit;opacity:.8}
.feature-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.feature-mini{border:1px solid var(--ink);padding:26px;text-decoration:none;background:rgba(255,255,255,.25);display:flex;flex-direction:column;justify-content:space-between}
.feature-mini h3{font-size:2rem;margin-top:18px}
.feature-mini .arrow-link{font-family:var(--mono);font-size:.75rem;text-transform:uppercase;color:var(--red);font-weight:800}
.newsletter{padding:70px 0;background:var(--yellow);border-bottom:1px solid var(--ink)}
.newsletter-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.newsletter h2{font-size:clamp(3rem,6vw,6rem);letter-spacing:-.05em}
.newsletter p{max-width:590px;font-size:1.05rem}
.signup{display:flex;border:1px solid var(--ink);background:var(--paper-2);padding:8px;box-shadow:8px 8px 0 var(--red)}
.signup input{flex:1;border:0;background:transparent;padding:13px;min-width:0;outline:0}
.signup button{border:0;background:var(--ink);color:#fff;padding:12px 18px;font-weight:800;cursor:pointer}
.smallprint{font-size:.74rem;color:#5f594e;margin-top:12px}
.footer{padding:46px 0 60px;background:var(--ink);color:#fff}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:50px}
.footer-brand img{width:230px;opacity:.95}
.footer-brand .footer-round-logo{width:142px;height:142px;object-fit:contain;filter:none;display:block;margin-bottom:16px}
.footer h4{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--yellow);margin:0 0 14px}
.footer a{display:block;color:#d4d4d4;text-decoration:none;margin:5px 0}
.footer a:hover{color:white}
.footer p{color:#bcbcbc;max-width:520px;font-size:.88rem}
.footer-note{border-top:1px solid #454545;margin-top:40px;padding-top:18px;font-size:.72rem;color:#999;display:flex;justify-content:space-between;gap:20px}
/* guide */
.page-hero{padding:55px 0 42px;border-bottom:1px solid var(--rule)}
.page-hero .breadcrumbs{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:24px;color:var(--muted)}
.page-hero h1{font-size:clamp(3.6rem,7vw,7.8rem);max-width:1100px;letter-spacing:-.055em}
.page-hero p{font-family:var(--serif);font-size:1.3rem;max-width:820px;margin:26px 0 0;color:#4e4e4e}
.guide-layout{display:grid;grid-template-columns:290px minmax(0,820px) 240px;gap:48px;padding:58px 0 90px;align-items:start}
.guide-toc{position:sticky;top:108px;border-top:4px solid var(--ink)}
.guide-toc h2{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;margin:15px 0}
.guide-toc ol{list-style:none;padding:0;margin:0;max-height:70vh;overflow:auto}
.guide-toc a{display:grid;grid-template-columns:30px 1fr;gap:7px;padding:7px 0;border-top:1px solid var(--rule);text-decoration:none;font-size:.76rem;line-height:1.25}
.guide-toc b{font-family:var(--mono);color:var(--red)}
.guide-toc a:hover{color:var(--blue)}
.article-intro{font-family:var(--serif);font-size:1.25rem;line-height:1.55;margin:0 0 40px}
.chapter{padding:0 0 64px;margin:0 0 64px;border-bottom:1px solid var(--ink);scroll-margin-top:110px}
.chapter-head{display:grid;grid-template-columns:100px 1fr;gap:22px;align-items:start;margin-bottom:24px}
.chapter-number{font-family:var(--serif);font-size:5rem;line-height:.8;color:var(--red);letter-spacing:-.08em}
.chapter h2{font-size:clamp(2.25rem,4.2vw,4.2rem);letter-spacing:-.04em}
.chapter h3{font-family:var(--sans);font-size:1.05rem;line-height:1.35;margin:28px 0 8px}
.chapter p{font-size:1.02rem;margin:0 0 18px}
.chapter ul{padding-left:22px}
.chapter li{margin:6px 0}
.callout{margin:28px 0;padding:21px 24px;border-left:7px solid var(--blue);background:var(--paper-2);font-family:var(--serif);font-size:1.12rem}
.callout.warning{border-color:var(--red)}
.callout strong{font-family:var(--sans)}
.guide-side{position:sticky;top:108px}
.side-card{border:1px solid var(--ink);background:var(--paper-2);padding:20px;margin-bottom:20px}
.side-card .label{font-family:var(--mono);font-size:.67rem;text-transform:uppercase;letter-spacing:.08em;color:var(--red);font-weight:800}
.side-card h3{font-size:1.45rem;margin:9px 0 12px}
.side-card p{font-size:.82rem;color:var(--muted);margin:0}
.side-ad{min-height:250px;border:1px dashed #8e877d;display:flex;align-items:center;justify-content:center;text-align:center;padding:20px;color:var(--muted);font-family:var(--mono);font-size:.67rem;text-transform:uppercase;letter-spacing:.06em}
/* about */
.about-grid{display:grid;grid-template-columns:1fr .8fr;gap:70px;padding:72px 0}
.about-copy h2{font-size:clamp(2.6rem,5vw,5rem);margin-bottom:28px}
.about-copy p{font-family:var(--serif);font-size:1.18rem}
.principles{display:grid;gap:14px}
.principle{border:1px solid var(--ink);padding:22px;background:var(--paper-2)}
.principle b{font-family:var(--mono);font-size:.75rem;color:var(--red)}
.principle h3{font-family:var(--sans);font-size:1.1rem;margin:7px 0 5px}
.principle p{font-size:.87rem;color:var(--muted);margin:0}
@media(max-width:1100px){
 .topic-grid{grid-template-columns:repeat(2,1fr)}
 .guide-layout{grid-template-columns:230px minmax(0,1fr)}
 .guide-side{display:none}
 .section-head{grid-template-columns:120px 1fr}.section-head p{grid-column:2}
 .topic-controls{margin-left:144px}
}
@media(max-width:800px){
 .site-shell{padding:0 18px}
 .navbar{grid-template-columns:1fr auto;min-height:68px}.brand img{width:165px}.nav-meta .update-pill{display:none}
 .menu-btn{display:block}.nav-links{position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:1px solid var(--ink);padding:20px;display:none;flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}
 .hero{padding-top:34px}.hero-grid,.hero-copy,.features,.newsletter-grid,.alert-strip,.about-grid{grid-template-columns:1fr}.hero-card{margin-top:10px;transform:none}.hero h1{font-size:clamp(2.72rem,12vw,4.8rem)}
 .section{padding:55px 0}.section-head{grid-template-columns:1fr;gap:10px}.section-head p{grid-column:1}.topic-controls{margin-left:0}.topic-grid{grid-template-columns:1fr}
 .topic-card{min-height:190px}.alert-main{padding:30px}.alert-main{border-right:0;border-bottom:1px solid var(--ink)}
 .sponsor-box{grid-template-columns:1fr}.sponsor-box .placeholder{justify-self:start}.feature-card{min-height:360px}.feature-card h3{margin-top:50px}
 .footer-grid{grid-template-columns:1fr}.footer-note{flex-direction:column}
 .guide-layout{grid-template-columns:1fr;padding-top:30px}.guide-toc{position:relative;top:0;margin-bottom:30px}.guide-toc ol{display:grid;grid-template-columns:1fr 1fr;max-height:none}.guide-toc a{padding-right:12px}.chapter-head{grid-template-columns:70px 1fr}.chapter-number{font-size:3.8rem}
 .signup{flex-direction:column}.signup button{width:100%}
}
@media(max-width:500px){.guide-toc ol{grid-template-columns:1fr}.hero-copy{gap:18px}.button{width:100%}}

/* question finder */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.question-search{padding:42px 0;border-bottom:1px solid var(--ink);background:var(--blue-dark);color:#fff}
.question-search-grid{display:grid;grid-template-columns:minmax(250px,.62fr) minmax(0,1.38fr);gap:58px;align-items:center}
.question-search .kicker{color:var(--yellow)}
.question-search h2{font-size:clamp(2.35rem,4.4vw,4.6rem);letter-spacing:-.045em;margin:5px 0 12px}
.question-search-intro p{margin:0;max-width:490px;color:rgba(255,255,255,.76);font-size:.94rem}
.question-search-tool{min-width:0}
.guide-search{display:grid;grid-template-columns:minmax(0,1fr) auto;background:var(--paper-2);border:2px solid var(--ink);box-shadow:8px 8px 0 var(--red)}
.guide-search input{min-width:0;border:0;background:transparent;padding:18px 20px;font-size:1.03rem;color:var(--ink);outline:0}
.guide-search input::placeholder{color:#7f7b74}
.guide-search input:focus{box-shadow:inset 0 -4px 0 var(--yellow)}
.guide-search button{border:0;border-left:2px solid var(--ink);background:var(--yellow);color:var(--ink);padding:0 20px;font-weight:850;cursor:pointer;white-space:nowrap}
.guide-search button:hover{background:#f6d86a}
.search-examples{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin-top:14px;font-family:var(--mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.045em;color:rgba(255,255,255,.65)}
.search-examples button{border:1px solid rgba(255,255,255,.38);background:transparent;color:#fff;padding:5px 8px;cursor:pointer;font-family:var(--mono);font-size:.67rem;text-transform:uppercase;letter-spacing:.03em}
.search-examples button:hover{background:#fff;color:var(--blue-dark)}
.search-results{display:none;margin-top:16px;background:var(--paper-2);color:var(--ink);border:1px solid var(--ink);box-shadow:6px 6px 0 var(--yellow)}
.search-results.visible{display:block}
.search-result{display:grid;grid-template-columns:46px 1fr auto;gap:12px;align-items:center;padding:12px 14px;text-decoration:none;border-top:1px solid var(--rule)}
.search-result:first-child{border-top:0}
.search-result:hover{background:#fff}
.search-result-no{font-family:var(--serif);font-size:1.9rem;line-height:1;color:var(--red)}
.search-result-copy strong{display:block;font-size:.9rem;line-height:1.2}
.search-result-copy span{display:block;margin-top:2px;font-size:.72rem;color:var(--muted)}
.search-result-arrow{font-family:var(--mono);color:var(--blue);font-weight:800}
.search-empty{padding:13px 15px;font-size:.82rem;color:var(--muted)}
@media(max-width:800px){
 .question-search{padding:34px 0}.question-search-grid{grid-template-columns:1fr;gap:24px}.guide-search{grid-template-columns:1fr}.guide-search button{border-left:0;border-top:2px solid var(--ink);padding:13px 16px}.search-result{grid-template-columns:38px 1fr auto}
}