:root{--paper:#f2f4f7;--card:#ffffff;--ink:#1c2b3a;--ink-2:#4a5a6b;--line:#d6dce4;--red:#c8302c;--amber:#f2b705;--amber-ink:#3a2a00;--display:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif;--serif:"Source Serif 4",Georgia,"Times New Roman",serif;--wrap:1180px;--measure:40rem}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:1.125rem;line-height:1.65;text-rendering:optimizeLegibility}a{color:inherit}img{max-width:100%;height:auto;display:block}h1,h2,h3,h4{font-family:var(--display);line-height:1.1;letter-spacing:-.015em;margin:0 0 .5em}h1{font-size:clamp(2.3rem,5.4vw,4.4rem);font-weight:800}h2{font-size:clamp(1.6rem,3vw,2.3rem)}h2,h3{font-weight:700}h3{font-size:1.3rem}p{margin:0 0 1em}:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:2px}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--amber);padding:8px 12px;z-index:10}.site-header{background:var(--ink);color:#fff;position:relative;z-index:60}.site-header .wrap{justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}.brand,.site-header .wrap{display:flex;align-items:center}.brand{font-family:var(--display);font-weight:800;font-size:1.25rem;text-decoration:none;gap:10px}.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;background:var(--amber);color:var(--ink);border-radius:6px;font-size:.9rem}.nav{display:flex;gap:20px;align-items:center;font-family:var(--display);font-size:.98rem;flex-wrap:wrap}.nav a{text-decoration:none;opacity:.9}.nav a:hover{opacity:1;text-decoration:underline;text-underline-offset:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--display);font-weight:700;font-size:1.05rem;padding:14px 22px;border-radius:8px;text-decoration:none;border:2px solid transparent;min-height:52px;cursor:pointer}.btn-buy{background:var(--amber);color:var(--amber-ink)}.btn-buy:hover{background:#ffc61a}.btn-ghost{border-color:currentColor}.btn-ghost:hover{background:rgba(255,255,255,.08)}.btn-small{padding:9px 14px;min-height:0;font-size:.95rem}.nav .btn-buy{color:var(--amber-ink);opacity:1}.hero{background:var(--ink);color:#fff;padding:56px 0 0;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;grid-gap:48px;gap:48px;align-items:center}.hero h1{color:#fff;max-width:14ch}.hero .lede{font-size:1.25rem;max-width:34rem;color:#d7e0ea}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 12px}.hero-note{font-size:.95rem;color:#a9b8c8;font-family:var(--display)}.cover-wrap{justify-self:center;transform:rotate(-3deg)}.cover{width:min(320px,70vw);aspect-ratio:6/9;border-radius:4px 10px 10px 4px;box-shadow:18px 22px 0 rgba(0,0,0,.25)}.cover-fallback{container-type:inline-size;background:#fff;color:var(--ink);display:flex;flex-direction:column;justify-content:space-between;padding:26px 22px;border-left:12px solid var(--red)}.cover-fallback .t{font-family:var(--display);font-weight:800;font-size:14cqw;line-height:.95}.cover-fallback .s{font-family:var(--display);font-size:5.4cqw;line-height:1.3;color:var(--ink-2)}.cover-fallback .a{font-family:var(--display);font-size:4.6cqw;font-weight:600}.board-band{background:var(--ink);color:#fff;padding:56px 0 64px}.board-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:18px}.board-head h2{color:#fff;margin:0}.board-caption{font-family:var(--display);min-height:3.2em;color:#d7e0ea;max-width:34rem}.board-caption strong{color:#fff}.board{display:grid;grid-template-columns:repeat(17,1fr);grid-gap:5px;gap:5px}.tile{aspect-ratio:1;display:grid;place-items:center;font-family:var(--display);font-weight:700;font-size:.95rem;color:#fff;text-decoration:none;border-radius:4px;background:var(--c);transition:transform .12s ease}.tile:focus-visible,.tile:hover{transform:scale(1.18);position:relative;z-index:2;box-shadow:0 0 0 3px var(--amber)}.tile.last{background:var(--amber);color:var(--amber-ink)}.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:20px;font-family:var(--display);font-size:.95rem}.legend a{text-decoration:none;display:inline-flex;align-items:center;gap:8px;color:#d7e0ea}.legend a:hover{color:#fff}.swatch{width:14px;height:14px;border-radius:3px;background:var(--c);display:inline-block}.section{padding:72px 0}.section-alt{background:#fff}.section-head{max-width:46rem;margin-bottom:36px}.section-head p{color:var(--ink-2);font-size:1.15rem}.cols-2{display:grid;grid-template-columns:1fr 1fr;grid-gap:48px;gap:48px;align-items:start}.problem{font-size:1.25rem;max-width:var(--measure)}.problem p:first-child{font-family:var(--display);font-size:1.6rem;line-height:1.3;font-weight:600}.cat-list{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:0 48px;gap:0 48px}.cat-row{border-top:1px solid var(--line);padding:22px 0;display:grid;grid-template-columns:6px 1fr;grid-gap:18px;gap:18px}.cat-row .bar{background:var(--c);border-radius:3px}.cat-row h3{margin:0 0 4px}.cat-row h3 a{text-decoration:none}.cat-row h3 a:hover{text-decoration:underline}.cat-row .range{font-family:var(--display);font-size:.9rem;color:var(--ink-2);font-weight:600}.cat-row p{margin:6px 0 0;color:var(--ink-2);font-size:1.02rem}.family{background:var(--card);border-left:8px solid var(--red);padding:32px 36px}.family blockquote{margin:0;font-size:1.3rem;line-height:1.5}.family cite{display:block;margin-top:14px;font-style:normal;font-family:var(--display);font-weight:600;color:var(--ink-2);font-size:1rem}.guide-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);grid-gap:0 32px;gap:0 32px}.guide-list li{border-top:1px solid var(--line);padding:18px 0}.guide-list a{font-family:var(--display);font-weight:700;font-size:1.15rem;text-decoration:none;line-height:1.25;display:block}.guide-list a:hover{text-decoration:underline}.guide-list span{display:block;color:var(--ink-2);font-size:.98rem;margin-top:6px}.faq details{border-top:1px solid var(--line);padding:16px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{font-family:var(--display);font-weight:700;font-size:1.15rem;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-size:1.5rem;line-height:1;color:var(--red)}.faq details[open] summary:after{content:"–"}.faq details p{margin:10px 0 0;color:var(--ink-2);max-width:var(--measure)}.final-cta{background:var(--red);color:#fff;padding:64px 0}.final-cta .wrap{display:grid;grid-template-columns:1fr auto;grid-gap:32px;gap:32px;align-items:center}.final-cta h2{color:#fff;margin:0 0 8px}.final-cta p{margin:0;font-size:1.15rem;color:#ffe4e2;max-width:38rem}.sample{display:grid;grid-template-columns:1fr 1fr;grid-gap:40px;gap:40px;align-items:center}.form{display:flex;gap:10px;flex-wrap:wrap}.form label{position:absolute;left:-9999px}.form input[type=email],.form input[type=text]{flex:1 1 220px;font:inherit;font-size:1.05rem;padding:13px 14px;border:2px solid var(--ink);border-radius:8px;min-height:52px;background:#fff;color:var(--ink)}.form .btn{border:none}.btn-ink{background:var(--ink);color:#fff}.btn-ink:hover{background:#2a3e52}.fine{font-size:.9rem;margin-top:10px}.crumbs,.fine{color:var(--ink-2);font-family:var(--display)}.crumbs{font-size:.92rem;margin:28px 0 0}.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}.article-head{padding:24px 0 36px;border-bottom:1px solid var(--line)}.lesson-no{font-family:var(--display);font-weight:800;font-size:clamp(4rem,12vw,8rem);line-height:.85;color:var(--c);letter-spacing:-.04em;display:block;margin-bottom:12px}.article-head h1{font-size:clamp(2rem,4.6vw,3.4rem);max-width:20ch}.standfirst{font-size:1.25rem;color:var(--ink-2);max-width:var(--measure);margin:0}.cat-chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:600;font-size:.95rem;text-decoration:none;margin-bottom:16px}.article-layout{display:grid;grid-template-columns:minmax(0,var(--measure)) 300px;grid-gap:64px;gap:64px;padding:40px 0 72px;justify-content:space-between}.prose{font-size:1.15rem;line-height:1.72}.prose h2{font-size:1.65rem;margin:2em 0 .6em}.prose h3{margin:1.6em 0 .5em}.prose ol,.prose ul{padding-left:1.3em}.prose li{margin-bottom:.6em}.prose a{color:var(--red);text-underline-offset:3px}.prose blockquote{margin:1.5em 0;padding-left:20px;border-left:4px solid var(--line);color:var(--ink-2)}.excerpt{background:#fff;border-left:6px solid var(--c,var(--red));padding:24px 28px;margin:0 0 36px}.excerpt-label{font-family:var(--display);font-weight:700;font-size:.95rem;color:var(--ink-2);margin-bottom:8px;display:block}.excerpt p{margin:0;font-size:1.2rem;line-height:1.6;font-style:italic}.box{background:#fff;padding:24px 26px;margin:36px 0;border-radius:6px}.box h2{font-size:1.35rem;margin:0 0 12px}.box ul{margin:0;padding-left:1.2em}.box li{margin-bottom:.5em}.box-talk{background:var(--ink)}.box-talk,.box-talk h2{color:#fff}.box-talk li{color:#e3e9f0}.aside-sticky{position:-webkit-sticky;position:sticky;top:24px}.buybox{background:var(--ink);color:#fff;padding:24px;border-radius:8px}.buybox .cover{width:130px;box-shadow:8px 10px 0 rgba(0,0,0,.25);margin-bottom:18px}.buybox .cover-fallback{padding:12px 10px;border-left-width:6px}.buybox h3{color:#fff;font-size:1.25rem}.buybox p{font-size:1rem;color:#cfd9e4}.buybox .btn{width:100%}.aside-cat{margin-top:24px}.aside-cat h3{font-size:1.05rem}.aside-cat ol{list-style:none;padding:0;margin:0;font-size:.98rem}.aside-cat li{border-top:1px solid var(--line);padding:8px 0;display:grid;grid-template-columns:2.2em 1fr}.aside-cat li span{font-family:var(--display);font-weight:700;color:var(--c)}.aside-cat a{text-decoration:none}.aside-cat a:hover,.aside-cat a[aria-current]{text-decoration:underline}.pager{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;border-top:1px solid var(--line);padding-top:28px;margin-top:48px}.pager a{text-decoration:none;font-family:var(--display)}.pager small{display:block;color:var(--ink-2);font-size:.9rem}.pager strong{font-size:1.1rem}.pager .next{text-align:right}.inline-cta{border:2px solid var(--ink);border-radius:8px;padding:22px 24px;margin:40px 0;display:grid;grid-template-columns:1fr auto;grid-gap:18px;gap:18px;align-items:center}.inline-cta p{margin:0;font-family:var(--display);font-size:1.1rem;line-height:1.35}.index-cat{margin-bottom:48px}.index-cat h2{display:flex;align-items:center;gap:12px}.index-list{list-style:none;padding:0;margin:0;column-count:2;column-gap:48px}.index-list li{page-break-inside:avoid;break-inside:avoid;border-top:1px solid var(--line);padding:10px 0;display:grid;grid-template-columns:2.6em 1fr}.index-list .num{font-family:var(--display);font-weight:800;color:var(--c)}.index-list a{text-decoration:none}.index-list a:hover{text-decoration:underline}.page-head{padding:40px 0 24px}.page-head p{font-size:1.2rem;color:var(--ink-2);max-width:44rem}.site-footer{background:var(--ink);color:#c6d1dd;padding:48px 0 32px;font-size:1rem}.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;grid-gap:32px;gap:32px}.site-footer h3{color:#fff;font-size:1rem}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:6px}.site-footer a{text-decoration:none}.site-footer a:hover{color:#fff;text-decoration:underline}.foot-base{border-top:1px solid #33475b;margin-top:32px;padding-top:20px;font-size:.88rem;font-family:var(--display)}@media (max-width:960px){.article-layout,.cols-2,.hero-grid,.sample{grid-template-columns:1fr}.article-layout{gap:24px}.aside-sticky{position:static}.board{grid-template-columns:repeat(10,1fr)}.cat-list,.guide-list{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr 1fr}.final-cta .wrap{grid-template-columns:1fr}.hero-grid .cover{width:min(200px,50vw)}.hero{padding-bottom:8px}}@media (max-width:600px){body{font-size:1.06rem}.board{grid-template-columns:repeat(8,1fr);gap:4px}.tile{font-size:.8rem}.index-list{column-count:1}.nav{gap:14px;font-size:.92rem}.inline-cta,.pager{grid-template-columns:1fr}.pager .next{text-align:left}.family{padding:24px 22px}.section{padding:52px 0}}@media (prefers-reduced-motion:reduce){.tile{transition:none}}.guide-hero{max-height:520px;margin-top:32px}.guide-hero,.home-photo{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:8px}.home-photo{margin-bottom:0}.home-photo+.family{margin-top:-48px;margin-left:24px;position:relative}@media (max-width:600px){.home-photo+.family{margin:-32px 0 0 12px}}.guide-thumb{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:6px;margin-bottom:12px}.mnav{display:none;align-items:center;gap:10px}.mnav-toggle{width:44px;height:44px;display:grid;place-items:center;background:transparent;border:2px solid rgba(255,255,255,.35);border-radius:8px;color:#fff;cursor:pointer;padding:0}.burger{width:20px;height:14px;position:relative;display:block}.burger i{position:absolute;left:0;right:0;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease}.burger i:first-child{top:0}.burger i:nth-child(2){top:6px}.burger i:nth-child(3){top:12px}.burger.is-open i:first-child{transform:translateY(6px) rotate(45deg)}.burger.is-open i:nth-child(2){opacity:0}.burger.is-open i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.mnav-panel{position:fixed;left:0;right:0;top:64px;bottom:0;background:var(--ink);padding:8px 20px 32px;z-index:50;overflow-y:auto;border-top:1px solid #33475b}.mnav-panel nav{display:flex;flex-direction:column;margin-bottom:24px}.mnav-panel nav a{font-family:var(--display);font-weight:700;font-size:1.35rem;color:#fff;text-decoration:none;padding:16px 0;border-bottom:1px solid #33475b}.mnav-panel nav a[aria-current=page]{color:var(--amber)}.mnav-panel .btn{width:100%}@media (max-width:920px){.site-header .wrap{flex-wrap:nowrap}.nav{display:none}.mnav{display:flex}.brand{font-size:1.1rem}}@media (max-width:360px){.brand-text{display:none}}@media (prefers-reduced-motion:reduce){.burger i{transition:none}}.lp-top{background:var(--ink);color:#fff}.lp-top .wrap{display:flex;justify-content:space-between;align-items:center;min-height:64px;gap:12px}.lp-hero{background:var(--ink);color:#fff;padding:40px 0 64px;overflow:hidden}.lp-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;grid-gap:48px;gap:48px;align-items:center}.lp-hero h1{color:#fff;font-size:clamp(2.1rem,4.6vw,3.6rem);max-width:16ch}.lp-hero .lede{font-size:1.2rem;color:#d7e0ea;max-width:34rem}.lp-who{display:inline-block;font-family:var(--display);font-weight:700;font-size:.95rem;color:var(--amber-ink);background:var(--amber);padding:4px 10px;border-radius:4px;margin-bottom:18px}.lp-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 12px}.lp-form{margin:26px 0 12px;max-width:34rem}.lp-form .form input[type=email]{border-color:#fff}.lp-fine{font-family:var(--display);font-size:.92rem;color:#a9b8c8;margin-top:10px}.lp-fine a{color:#fff}.lp-hero-art{position:relative}.lp-photo{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px}.lp-cover{position:absolute;width:30%;right:-3%;bottom:-14%;transform:rotate(-4deg);box-shadow:12px 14px 0 rgba(0,0,0,.3);border-radius:3px 8px 8px 3px}.btn-outline{border-color:var(--ink);color:var(--ink)}.lp-problem>*{max-width:46rem}.lp-lessons{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:20px;gap:20px;margin-top:12px}.lp-lesson{background:var(--paper);border-top:6px solid var(--c);border-radius:6px;padding:22px;text-decoration:none;display:flex;flex-direction:column;gap:6px}.lp-lesson:hover strong{text-decoration:underline}.lp-num{font-weight:800;font-size:2.6rem;line-height:1;color:var(--c)}.lp-cat,.lp-num{font-family:var(--display)}.lp-cat{font-weight:600;font-size:.9rem;color:var(--ink-2)}.lp-lesson strong{font-family:var(--display);font-size:1.25rem;line-height:1.2}.lp-take{color:var(--ink-2);font-size:1rem}.lp-read{font-family:var(--display);font-weight:700;font-size:.95rem;color:var(--red);margin-top:auto;padding-top:8px}.lp-more{color:var(--ink-2);margin-top:20px}.lp-why{margin:0}.lp-why div{border-top:1px solid var(--line);padding:14px 0}.lp-why dt{font-family:var(--display);font-weight:700;font-size:1.15rem}.lp-why dd{margin:4px 0 0;color:var(--ink-2)}.lp-tips{background:var(--ink);color:#fff;padding:28px 30px;border-radius:8px}.lp-tips h3{color:#fff;font-size:1.35rem}.lp-tips ol{margin:0;padding-left:1.3em;color:#e3e9f0}.lp-tips li{margin-bottom:.7em}.lp-authors{display:grid;grid-template-columns:180px 1fr;grid-gap:40px;gap:40px;align-items:center;max-width:56rem}.lp-cover-sm{width:180px;box-shadow:10px 12px 0 rgba(0,0,0,.15);border-radius:3px 8px 8px 3px}.lp-facts{font-weight:600;color:var(--ink-2)}.lp-facts,.lp-foot{font-family:var(--display)}.lp-foot{background:var(--ink);color:#a9b8c8;padding:24px 0;font-size:.9rem}.lp-foot .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.lp-foot a{color:#d7e0ea;text-decoration:none}.lp-foot a:hover{text-decoration:underline}@media (max-width:960px){.lp-hero-grid{gap:32px}.lp-hero-grid,.lp-lessons{grid-template-columns:1fr}.lp-cover{width:26%;right:3%;bottom:-10%}}@media (max-width:600px){.lp-authors{grid-template-columns:1fr;gap:20px}.lp-cover-sm{width:120px}.lp-tips{padding:22px}}.lp-foot-links{display:flex;gap:18px;flex-wrap:wrap}.who-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);grid-gap:12px;gap:12px}.who-list a{display:block;height:100%;padding:18px 20px;border:2px solid var(--ink);border-radius:8px;text-decoration:none;background:#fff}.who-list a:hover{background:var(--amber)}.who-list strong{display:block;font-family:var(--display);font-size:1.15rem}.who-list span{display:block;color:var(--ink-2);font-size:1rem;margin-top:4px}.who-list a:hover span{color:var(--amber-ink)}@media (max-width:960px){.who-list{grid-template-columns:1fr 1fr}}@media (max-width:600px){.who-list{grid-template-columns:1fr}}.lp-top .brand,.lp-top .btn{white-space:nowrap}@media (max-width:600px){.problem p:first-child{font-size:1.3rem}.lp-hero{padding-top:24px}}@media (max-width:440px){.lp-top .brand-text{display:none}}