:root{--bg:#f3eee4;--surface:#fbf8f2;--ink:#1a1613;--muted:#5b5249;--accent:#b23c0a;--accent-ink:#ffffff;--accent2:#1a1613;--line:#ddd3c3;--hero-ink:#f3eee4;--r:3px;--maxw:1180px;--measure:66ch;--hf:'Trocchi', Georgia, serif;--bf:'Lato', 'Helvetica Neue', Arial, sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--bf)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:.18em}
h1,h2,h3,h4{font-family:var(--hf);line-height:1.18;margin:1.6em 0 .5em;font-weight:400;letter-spacing:0}
h1{font-size:clamp(2rem,5vw,3.6rem);margin-top:0}
h2{font-size:clamp(1.4rem,3vw,2rem)}h3{font-size:1.2rem}
p,ul,ol,table,details{margin:0 0 1.1em}
.wrap{max-width:max(var(--maxw),min(88vw,1760px));margin:0 auto;padding:0 20px}
@media(min-width:1800px){body article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:52rem}}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:8px;z-index:9}
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.brand{font-family:var(--hf);font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand svg{flex:none}
nav.main ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px;margin:0;padding:0}
nav.main a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
nav.main a[aria-current]{border-color:var(--accent)}
.menu-btn{display:none}
@media(max-width:760px){.menu-btn{display:inline-block;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r);padding:6px 12px;font:inherit}
nav.main{width:100%;display:none}nav.main.open{display:block}nav.main ul{flex-direction:column;gap:6px}}
.hero{position:relative;overflow:hidden}
.hero .wrap{padding-top:56px;padding-bottom:56px}
.hero .lead{font-size:1.18rem;color:var(--muted);max-width:60ch}
.hero.full{color:var(--hero-ink);min-height:440px;display:flex;align-items:flex-end}
.hero.full img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero.full::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,16,16,.88) 0%,rgba(18,16,16,.6) 45%,rgba(18,16,16,.15) 100%)}
.hero.full .wrap{position:relative;z-index:1;width:100%}.hero.full .lead{color:inherit;opacity:.92}
.hero.split .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero.split img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}
.hero.banner img{width:100%;max-height:380px;object-fit:cover;border-radius:var(--r);margin-top:28px}
.hero.plain{background:var(--surface);border-bottom:1px solid var(--line)}
@media(max-width:760px){.hero.split .wrap{grid-template-columns:1fr}.hero.full{min-height:340px}.hero .wrap{padding-top:36px;padding-bottom:36px}}
.page{display:grid;gap:48px;padding-top:40px;padding-bottom:64px}
.page.toc-layout{grid-template-columns:220px minmax(0,1fr)}
.page.toc-layout .toc{position:sticky;top:20px;align-self:start;font-size:.92rem;border-left:3px solid var(--accent);padding-left:14px}
.page.toc-layout .toc ul{list-style:none;padding:0;margin:0}.page.toc-layout .toc li{margin:.35em 0}
.page.toc-layout .toc a{color:var(--muted);text-decoration:none}
@media(max-width:860px){.page.toc-layout{grid-template-columns:1fr}.page.toc-layout .toc{position:static}}
/* Content uses the full container width (cards, grids, tables); only running text keeps a readable measure. */
article.prose{max-width:none;min-width:0}
article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:47.5rem;margin-left:auto;margin-right:auto}
.page.toc-layout article.prose>*{margin-left:0;margin-right:0}
/* A heading that introduces a full-width block (cards, grid, table) lines up with that block, not the text column. */
body article.prose>:is(h2,h3):has(+ :is(.cards,nav,div,table,section,ul.grid)){max-width:none;margin-left:0;margin-right:0}
.page.wide article.prose>*{max-width:none}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:0 0 1.4em}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
a.card{display:block;color:var(--ink);text-decoration:none}a.card:hover{border-color:var(--accent)}
.callout{border-left:4px solid var(--accent2);background:var(--surface);padding:14px 18px;border-radius:0 var(--r) var(--r) 0;margin:0 0 1.2em}
.table-wrap{overflow-x:auto;margin:0 0 1.2em}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{font-family:var(--hf);background:var(--surface)}
details{border:1px solid var(--line);border-radius:var(--r);padding:10px 16px;background:var(--surface)}
summary{cursor:pointer;font-weight:600}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:1em}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:10px 18px;border-radius:var(--r);text-decoration:none;font-weight:600;border:0;font:inherit;cursor:pointer}
.aff{border:1px dashed var(--accent);border-radius:var(--r);padding:16px 18px;margin:0 0 1.2em;background:var(--surface)}
.aff .tag{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.disclosure{font-size:.88rem;color:var(--muted);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;margin:0 0 1.6em}
.meta{font-size:.88rem;color:var(--muted)}
dl dt{font-family:var(--hf);font-weight:700;margin-top:1em}dl dd{margin:.2em 0 0 0;color:var(--ink)}
footer.site{border-top:1px solid var(--line);background:var(--surface);font-size:.92rem;color:var(--muted)}
footer.site .wrap{padding-top:32px;padding-bottom:32px;display:grid;gap:18px}
footer.site ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 18px}
footer.site a{color:var(--muted)}
.sk{font-size:17.5px}
.sk header.site{background:#121010;border-bottom:3px solid #e8590c}
.sk .brand{color:#f3eee4;font-weight:400;font-size:1.4rem;letter-spacing:.02em}
.sk nav.main a{color:#d9d0c1;font-size:.94rem;letter-spacing:.02em}
.sk nav.main a:hover{color:#fff}
.sk nav.main a[aria-current]{color:#fff;border-color:#e8590c}
.sk .menu-btn{color:#f3eee4;border-color:rgba(243,238,228,.4)}
/* Dark hero on every page, light body below */
.sk .hero{background:#121010;color:#f3eee4;border-bottom:0}
.sk .hero.plain{background-color:#121010;background-image:radial-gradient(ellipse at 80% 0%,rgba(232,89,12,.22),transparent 55%),url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20200%20240%22%20width%3D%22100%22%20height%3D%22120%22%3E%3Cg%20fill%3D%22none%22%20stroke%3D%22rgba(243%2C238%2C228%2C0.07)%22%20stroke-width%3D%223%22%3E%3Cpath%20d%3D%22M32%2092a68%2068%200%201%201%20136%200a68%2068%200%201%201%20-136%200%22%2F%3E%3Cpath%20d%3D%22M40%20128C40%20150%2050%20166%2064%20172L68%20204C72%20220%2086%20228%20100%20228C114%20228%20128%20220%20132%20204L136%20172C150%20166%20160%20150%20160%20128%22%2F%3E%3Cpath%20d%3D%22M54%20122C54%20106%2066%20100%2078%20102C90%20104%2094%20114%2092%20126C90%20138%2080%20144%2070%20142C60%20140%2054%20134%2054%20122Z%22%2F%3E%3Cpath%20d%3D%22M146%20122C146%20106%20134%20100%20122%20102C110%20104%20106%20114%20108%20126C110%20138%20120%20144%20130%20142C140%20140%20146%20134%20146%20122Z%22%2F%3E%3Cpath%20d%3D%22M100%20148C95%20156%2091%20164%2092%20170C94%20174%2098%20173%20100%20169C102%20173%20106%20174%20108%20170C109%20164%20105%20156%20100%20148Z%22%2F%3E%3Cpath%20d%3D%22M42%20140C46%20152%2056%20158%2066%20156%22%2F%3E%3Cpath%20d%3D%22M158%20140C154%20152%20144%20158%20134%20156%22%2F%3E%3Cpath%20d%3D%22M36%2072C44%2092%2048%20108%2046%20126%22%2F%3E%3Cpath%20d%3D%22M164%2072C156%2092%20152%20108%20154%20126%22%2F%3E%3Cpath%20d%3D%22M70%20184C84%20180%20116%20180%20130%20184%22%2F%3E%3Cpath%20d%3D%22M72%20200C86%20204%20114%20204%20128%20200%22%2F%3E%3Cpath%20d%3D%22M80%20182V202M88%20181V203M96%20181V203M104%20181V203M112%20181V203M120%20182V202%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E");background-size:auto,100px 120px;border-bottom:0}
.sk .hero .kicker{color:#ff8a3d;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.18em;margin:0 0 .8em}
.sk .hero h1{color:#f3eee4;max-width:22ch}
.sk .hero .lead{color:#d9d0c1}
.sk .hero.full{min-height:520px}
.sk .hero.full .wrap{padding-bottom:72px}
.sk .hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:repeating-linear-gradient(90deg,#e8590c 0 40px,#121010 40px 48px);z-index:2}
.sk .hero.plain .art{display:none}
.sk.p-index .hero.plain .wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);grid-template-rows:1fr auto auto 1fr;column-gap:48px;align-items:center;padding-top:72px;padding-bottom:72px}
.sk.p-index .hero.plain .kicker{grid-row:2}.sk.p-index .hero.plain h1{grid-row:3}.sk.p-index .hero.plain .lead{grid-row:4;align-self:start}
body.sk article.prose>ol.sb{max-width:none;margin-left:0;margin-right:0}
.sk.p-index .hero.plain .wrap>.art{display:block;grid-column:2;grid-row:1/span 4}
.sk.p-index .hero.plain .kicker,.sk.p-index .hero.plain h1,.sk.p-index .hero.plain .lead{grid-column:1}
.sk .art .big{width:100%;max-width:380px;margin:0 auto;display:block;filter:drop-shadow(0 0 40px rgba(232,89,12,.25))}
.sk .art .big .l{fill:none;stroke:#f3eee4;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.sk .art .big .f{fill:#e8590c}
@media(max-width:760px){.sk.p-index .hero.plain .wrap{grid-template-columns:1fr;grid-template-rows:none;padding-top:40px;padding-bottom:48px}.sk.p-index .hero.plain .kicker,.sk.p-index .hero.plain h1,.sk.p-index .hero.plain .lead{grid-row:auto}.sk.p-index .hero.plain .wrap>.art{grid-column:1;grid-row:auto;max-width:180px;margin:12px auto 0}}
/* Body */
.sk .prose h2{padding-top:.55em;border-top:3px double #1a1613;letter-spacing:.01em}
.sk .prose h2::after{content:"";display:block;width:48px;height:4px;background:#e8590c;margin-top:.35em}
.sk .prose h3{color:#2a221d}
.sk .cards.guides{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
@media(max-width:900px){.sk .cards.guides{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.sk .cards.guides{grid-template-columns:1fr}}
.sk .card{background:#fbf8f2;border:1px solid #d6cbb8;border-top:6px solid #121010;border-radius:3px;padding:20px 22px 22px;position:relative}
.sk a.card{transition:transform .15s,border-color .15s,box-shadow .15s}
.sk a.card:hover{transform:translateY(-3px);border-top-color:#e8590c;box-shadow:0 10px 22px rgba(18,16,16,.12)}
.sk .card .no{font-family:var(--hf);color:#b23c0a;font-size:1.6rem;line-height:1;display:block;margin-bottom:.35em}
.sk .card h3{margin:0 0 .4em}
.sk .callout{background:#121010;color:#efe8db;border-left:6px solid #e8590c;border-radius:0;padding:16px 22px}
.sk .callout a{color:#ff8a3d}
.sk th{background:#121010;color:#f3eee4;font-family:var(--bf);font-size:.8rem;text-transform:uppercase;letter-spacing:.1em}
.sk tbody tr:nth-child(even) td{background:#f7f2e9}
.sk .table-wrap{border:1px solid #d6cbb8;background:#fbf8f2}
.sk details{border:1px solid #d6cbb8;border-left:4px solid #121010;border-radius:0;background:#fbf8f2}
.sk details[open]{border-left-color:#e8590c}
.sk .steps li::before{background:#121010;color:#ff8a3d;border-radius:2px;font-family:var(--hf);font-weight:400}
.sk .ph{margin:0 0 1.8em}
.sk .ph img{width:100%;max-height:520px;object-fit:cover;border-radius:3px}
.sk .ph figcaption{font-size:.88rem;color:var(--muted);margin-top:.5em}
.sk footer.site{background:#121010;color:#cfc6b8;border-top:3px solid #e8590c}
.sk footer.site a{color:#ff8a3d}
/* Signature: sketchbook construction sequence */
.sk .sb{list-style:none;margin:0 0 2em;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
@media(min-width:1700px){.sk .sb{grid-template-columns:repeat(8,minmax(0,1fr))}}
@media(max-width:900px){.sk .sb{grid-template-columns:repeat(2,minmax(0,1fr))}}
.sk .sb figure{margin:0;height:100%;background-color:#fffdf8;background-image:linear-gradient(rgba(91,82,73,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(91,82,73,.09) 1px,transparent 1px);background-size:16px 16px;border:1px solid #d6cbb8;box-shadow:4px 4px 0 #121010;padding:14px 14px 16px;display:flex;flex-direction:column}
.sk .sk-svg{width:100%;max-width:200px;margin:0 auto 10px;display:block}
.sk .sk-svg path{fill:none;stroke:#8f857a;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.sk .sk-svg .g{stroke-dasharray:5 6;stroke-width:1.5;stroke:#b3a99c}
.sk .sk-svg .now{stroke:#e8590c;stroke-width:4}
.sk .sk-svg .g.now{stroke:#e8590c;stroke-width:2}
.sk .sk-svg .f{fill:#8f857a;stroke:none}
.sk .sk-svg .f.now{fill:#1a1613}
.sk .sb figcaption{font-size:.92rem;line-height:1.45}
.sk .sb .no{display:block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:#b23c0a}
.sk .sb strong{display:block;font-family:var(--hf);font-weight:400;font-size:1.06rem;margin:.15em 0 .3em}
.sk .sb .nt{color:#3d352f}
/* Mini strip on the home page */
.sk .strip{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:10px;text-decoration:none;margin:0 0 2em;padding:16px;background:#121010;border-radius:3px}
.sk .strip .fr{position:relative;background:#1f1b19;border-radius:2px;padding:10px 8px 6px}
.sk .strip .sk-svg{margin:0 auto}
.sk .strip .sk-svg path{stroke:#6f665c}
.sk .strip .sk-svg .g{stroke:#4f4740}
.sk .strip .sk-svg .f{fill:#6f665c}
.sk .strip .sk-svg .now{stroke:#ff8a3d}
.sk .strip .sk-svg .f.now{fill:#f3eee4}
.sk .strip b{position:absolute;top:6px;left:8px;color:#ff8a3d;font-family:var(--hf);font-weight:400;font-size:.95rem}
.sk .strip:hover .fr{background:#2a2420}
@media(max-width:900px){.sk .strip{grid-template-columns:repeat(4,minmax(0,1fr))}}
.sk .two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin:0 0 1.6em}
@media(max-width:760px){.sk .two{grid-template-columns:1fr}}
.sk .two>div{background:#fbf8f2;border:1px solid #d6cbb8;padding:18px 22px}
.sk .two h3{margin-top:0}
.sk .two ul{margin-bottom:0;padding-left:1.2em}