:root{color-scheme:dark;--background:#171717;--surface:#242424;--surface-strong:#101010;--text:#f5f3ec;--muted:#bdbdb5;--accent:#a0f000;--button-background:#a0f000;--button-hover:#426b0d;--on-accent:#141414;--line:#454545;color:var(--text);background:var(--background);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.65}*{box-sizing:border-box}html{min-height:100%;overflow-y:auto}body{flex-direction:column;min-height:100dvh;margin:0;display:flex}main{flex:1 0 auto}.site-header,.site-footer{flex-shrink:0}a{color:inherit;text-underline-offset:.22em}a:hover{color:var(--accent)}img{max-width:100%;height:auto;display:block}button{font:inherit}h1,h2,h3,p{margin:0 0 1rem}h1,h2,h3{text-wrap:balance;line-height:1.12}h1,h2{font-family:Georgia,Times New Roman,serif;font-weight:400}h1{letter-spacing:-.045em;font-size:clamp(2.6rem,6vw,5.2rem)}h2{letter-spacing:-.03em;font-size:clamp(2rem,3.6vw,3rem)}h3{font-size:1.5rem}h1 em{color:inherit}p{max-width:65ch}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.container{width:min(1120px,100% - 3rem);margin-inline:auto}.site-header{background:var(--surface-strong);border-bottom:1px solid var(--line)}.header-inner,.footer-inner,.section-heading{justify-content:space-between;align-items:center;gap:2rem;display:flex}.header-inner{min-height:100px}.brand-link{flex-shrink:0;align-items:center;gap:.65rem;text-decoration:none;display:inline-flex}.brand-link img{width:48px;height:48px}.header-logo img{width:200px;height:auto}.wordmark{letter-spacing:.02em;font-family:Montserrat,sans-serif;font-size:clamp(1.6rem,4vw,2.2rem);font-weight:800}.nav-list{flex-wrap:wrap;gap:.6rem 1.8rem;margin:0;padding:0;list-style:none;display:flex}.nav-list a{padding-block:.6rem;font-weight:600;text-decoration:none;display:inline-block}.nav-list a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px}.skip-link{background:var(--accent);color:var(--on-accent);z-index:1;padding:.75rem;position:absolute;top:-100px;left:1rem}.skip-link:focus{top:1rem}.skip-link:hover{color:var(--on-accent)}.hero{grid-template-columns:1.65fr 1fr;align-items:center;gap:4rem;padding-block:5rem;display:grid}.eyebrow{text-transform:uppercase;letter-spacing:.13em;margin-bottom:1rem;font-size:.75rem;font-weight:750}.lead{color:var(--muted);max-width:52ch;font-size:1.2rem}.actions{flex-wrap:wrap;gap:.9rem;margin-block:1.75rem;display:flex}.button{text-align:center;border:1px solid var(--button-background);background:var(--button-background);color:#000;border-radius:4px;padding:.8rem 1.2rem;font-size:.95rem;font-weight:650;text-decoration:none;display:inline-block}.button:hover{background:var(--button-hover);border-color:var(--button-hover);color:#fff}.button-outline{border-color:var(--muted);color:var(--text);background:0 0}.button-outline:hover{background:var(--surface);border-color:var(--accent);color:var(--accent)}.button:disabled,.button:disabled:hover{background:var(--surface-strong);border-color:var(--line);color:var(--muted);cursor:not-allowed}.text-link{font-weight:650}.hero-note{background:var(--surface);border:1px solid var(--line);text-align:center;border-radius:5px;padding:2rem}.hero-note p{margin-inline:auto}.hero-note>p:not(.eyebrow){font-family:Georgia,Times New Roman,serif;font-size:1.6rem;line-height:1.3}.series-covers{grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;margin-block:1.5rem;display:grid}.series-cover-placeholder{aspect-ratio:3/4;background:var(--surface-strong);border:1px solid var(--line);border-radius:2px;flex-direction:column;justify-content:space-between;min-height:112px;padding:.65rem .4rem;display:flex}.series-cover-title{text-transform:uppercase;font-size:.65rem;font-weight:750;line-height:1.3}.series-cover-placeholder strong{font-size:1rem}.series-cover-placeholder small{color:var(--muted);font-size:.6rem;line-height:1.3}.section{border-top:1px solid var(--line);padding-block:3.5rem}.section-heading{align-items:end;margin-bottom:1.8rem}.section-heading h2{margin-bottom:0}.book-list,.series-list{gap:2rem;margin-top:2rem;display:grid}.series-card{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:2.5rem;text-decoration:none;display:block}.series-card:hover{border-color:var(--accent);color:var(--text)}.series-card .series-covers{text-align:center;max-width:420px}.series-card .text-link{text-underline-offset:.22em;text-decoration:underline}.book-card{background:var(--surface);border-radius:5px;grid-template-columns:220px 1fr;align-items:center;gap:3rem;padding:2.5rem;display:grid}.book-spotlight{grid-template-columns:minmax(0,360px) minmax(0,1fr)}.book-spotlight .cover-link{width:min(360px,100%);margin-inline:auto}.cover-link{display:block}.cover-placeholder{aspect-ratio:3/4;background:var(--surface-strong);border:1px solid var(--line);text-align:center;border-radius:2px;flex-direction:column;justify-content:center;gap:1.5rem;padding:2rem;display:flex}.cover-placeholder span:first-child{font-family:Georgia,Times New Roman,serif;font-size:1.75rem;line-height:1.2}.cover-placeholder span:last-child{color:var(--muted);font-size:.9rem}.cover-link img,.detail-cover{border-radius:2px;box-shadow:6px 10px #00000040}.book-card h3 a{text-decoration:none}.book-tagline{font-family:Georgia,Times New Roman,serif;font-size:1.4rem}.badge{border:1px solid var(--muted);border-radius:30px;padding:.15rem .65rem;font-size:.75rem;font-weight:650;display:inline-block}.signup{background:var(--surface);border:1px solid var(--line);border-radius:5px;grid-template-columns:1.3fr 1fr;gap:3rem;margin-block:2rem 5rem;padding:3rem;display:grid}.signup h2{font-size:2.2rem}.signup-placeholder{align-self:center}.muted{color:var(--muted);font-size:.9rem}.page-intro{padding-block:4.5rem 3rem}.page-intro h1{max-width:18ch}.prose{max-width:760px}.notice{background:var(--surface-strong);border-radius:4px;margin-bottom:1.5rem;padding:1.5rem}.notice p{margin:.5rem 0 0}.puzzle-card,.download-panel{background:var(--surface);border-radius:5px;grid-template-columns:1.2fr 1fr;align-items:center;gap:3rem;padding:2.5rem;display:grid}.puzzle-card .button{justify-self:end}.download-panel .notice{margin-bottom:0}.book-detail{grid-template-columns:330px 1fr;align-items:start;gap:4rem;margin-block:2rem;display:grid}.book-detail h1{font-size:clamp(2.4rem,4vw,3.7rem)}.book-facts{border-block:1px solid var(--line);padding-block:1rem}.book-facts div{grid-template-columns:90px 1fr;gap:1rem;padding-block:.3rem;display:grid}.book-facts dt{font-weight:650}.book-facts dd{overflow-wrap:anywhere;margin:0}.site-footer{background:var(--surface-strong);border-top:1px solid var(--line);padding-block:2.5rem;padding-bottom:calc(2.5rem + env(safe-area-inset-bottom,0px))}.site-footer .brand-link{margin-bottom:.75rem}.footer-inner p{margin-bottom:0}@media (width<=960px){.hero{grid-template-columns:1fr;gap:2rem}.hero-note{width:100%;max-width:420px;margin-inline:auto}}@media (width<=760px){.header-inner{flex-direction:column;align-items:start;gap:.3rem;padding-block:1rem}.nav-list{gap:.2rem 1.2rem}.signup,.puzzle-card,.download-panel,.book-detail{grid-template-columns:1fr;gap:2rem}.hero{padding-block:3rem}.book-card{grid-template-columns:160px 1fr;gap:1.5rem;padding:1.5rem}.book-spotlight{grid-template-columns:1fr}.section-heading,.footer-inner{flex-direction:column;align-items:start;gap:1rem}.signup,.puzzle-card,.download-panel,.series-card{padding:1.5rem}.puzzle-card .button{justify-self:start}.detail-cover{width:min(300px,100%);margin-inline:auto}}@media (width<=480px){.container{width:calc(100% - 2rem)}.book-card{grid-template-columns:1fr}.cover-link{width:min(220px,100%);margin-inline:auto}.actions{flex-direction:column;align-items:stretch}.page-intro{padding-block:3rem 2rem}}