:root{--paper:#f8f3e5;--blue:#23477d;--ochre:#875d13;--muted:#536581;--line:#aab5c0;--wash:#eee5ce}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--blue);font:1.0625rem/1.7 "Trebuchet MS","Lucida Grande",Arial,sans-serif}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.25em}
a:hover{color:var(--ochre);text-decoration-thickness:2px}
a:focus-visible{outline:3px solid var(--ochre);outline-offset:5px}
.skip{position:absolute;top:-6rem;left:1rem;background:var(--blue);color:var(--paper);padding:.6rem 1rem;z-index:2}
.skip:focus{top:1rem}
.drawing-sheet{max-width:1240px;margin:auto;padding:0 48px}
header{display:flex;justify-content:space-between;align-items:end;gap:2rem;border-bottom:3px solid var(--blue);padding:31px 0 25px}
.site-name{font-size:1.6rem;font-weight:bold;line-height:1.2;text-decoration:none;letter-spacing:-.025em}
.site-name span{display:block;font-size:.75rem;font-weight:normal;letter-spacing:0;margin-top:8px}
nav{display:flex;gap:1.65rem;font-size:.85rem;line-height:1.5}
nav a{text-decoration:none;padding:4px 0}
nav a[aria-current="page"]{color:var(--ochre);border-bottom:2px solid var(--ochre)}
nav a:hover{text-decoration:underline}
h1,h2,p,figure{margin:0}
h1,h2{text-wrap:balance}
h1{font-size:clamp(3rem,5.5vw,4.75rem);line-height:1.04;font-weight:600;letter-spacing:-.035em}
h2{font-size:1.55rem;line-height:1.25;font-weight:600;letter-spacing:-.02em}
.title-area{display:grid;grid-template-columns:1.35fr 1fr;gap:5rem;align-items:end;padding:44px 0 36px}
.title-area>p{max-width:46ch;color:var(--muted);padding-bottom:.3rem}
.plan{border-top:1px solid var(--blue)}
.plan-first{margin-top:29px}
.plan img{display:block;width:100%;height:auto}
figcaption{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-top:1px solid var(--line);font:.68rem/1.6 ui-monospace,"SFMono-Regular",Consolas,monospace;color:var(--muted)}
.title-block{display:grid;grid-template-columns:auto auto;gap:0 24px;margin:0 0 0 auto;width:max-content;max-width:100%;padding:12px 17px;background:var(--wash);font:.68rem/1.8 ui-monospace,"SFMono-Regular",Consolas,monospace}
.title-block>span{color:var(--ochre)}
.title-block strong{font-weight:normal}
.notebook-entry{display:grid;grid-template-columns:2fr 1fr;gap:6rem;align-items:start;margin:46px 0 61px}
.entry-copy{max-width:70ch}
.entry-copy h2{margin-bottom:19px}
.entry-copy p+p{margin-top:1.2rem}
.text-link{display:inline-block;margin-top:1.5rem;font-size:.85rem}
.text-link span{display:inline-block;margin-left:.35rem}
.margin-note{margin-top:46px;border-top:1px solid var(--ochre);padding-top:17px;font:.75rem/1.8 ui-monospace,"SFMono-Regular",Consolas,monospace}
.margin-note h2{font:inherit;color:var(--ochre);margin-bottom:14px}
.margin-note p{margin-bottom:21px}
.layout-notes{display:grid;grid-template-columns:1fr 1fr;gap:37px 65px;margin:35px 0 61px}
.plan-note{max-width:70ch;scroll-margin-top:25px}
.plan-note h2{margin-bottom:18px}
.plan-note:first-child{grid-row:span 2;border-right:1px solid var(--line);padding-right:47px}
.plan-note:first-child p{font-size:1.15rem;line-height:1.75}
.bench-notes{margin:7px 0 61px}
.bench-entry{display:grid;grid-template-columns:160px minmax(0,1fr);gap:42px;padding:30px 0 35px;border-top:1px solid var(--line);scroll-margin-top:25px}
.bench-entry>div:last-child{max-width:70ch}
.bench-entry h2{margin-bottom:19px}
.bench-label{font:.72rem/1.8 ui-monospace,"SFMono-Regular",Consolas,monospace;color:var(--ochre);padding-top:4px}
footer{display:flex;justify-content:space-between;gap:1.5rem;border-top:3px solid var(--blue);padding:21px 0 30px;font-size:.7rem;line-height:1.6;color:var(--muted)}
@media(max-width:850px){.drawing-sheet{padding:0 31px}.title-area{gap:2.7rem}.notebook-entry{gap:3rem}.layout-notes{gap:30px 35px}.plan-note:first-child{padding-right:30px}.bench-entry{grid-template-columns:130px 1fr;gap:29px}}
@media(max-width:620px){
  .drawing-sheet{padding:0 23px}
  header{display:block;padding:24px 0 19px}
  .site-name{font-size:1.5rem}
  nav{margin-top:23px;gap:1.5rem;font-size:.8rem;flex-wrap:wrap}
  .title-area{grid-template-columns:1fr;gap:22px;padding:32px 0 28px}
  h1{font-size:clamp(2.75rem,11vw,4rem)}
  .title-area>p{max-width:54ch}
  .plan{margin:0 -7px}
  figcaption{flex-direction:column;gap:3px;font-size:.63rem;padding:12px 7px}
  .title-block{font-size:.63rem;padding:10px 13px;gap:0 17px}
  .notebook-entry{grid-template-columns:1fr;gap:31px;margin:31px 0 43px}
  .margin-note{margin:0 0 0 33px;padding-top:17px;max-width:310px}
  .layout-notes{grid-template-columns:1fr;gap:30px;margin:28px 0 44px}
  .plan-note:first-child{grid-row:auto;border-right:0;padding:0}
  .plan-note:first-child p{font-size:1.0625rem;line-height:1.7}
  .bench-notes{margin-bottom:42px}
  .bench-entry{grid-template-columns:1fr;gap:13px;padding:23px 0 29px}
  .bench-label br{display:none}
  .bench-label{font-size:.68rem}
  .bench-entry h2{margin-bottom:15px}
  footer{flex-direction:column;gap:.6rem}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}