/* Shared Non-blocking chrome around the retained engineering document. */
:root{--fs-display:clamp(2.1rem,3.7vw,3.3rem);--fs-label:13px;--fs-small:15px}
.shared-header{background:#fff;border-bottom:1px solid #dedede}
.shared-nav{max-width:1332px;margin:0 auto;padding:28px 0;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:116px}
.shared-brand{display:flex;flex-direction:column;text-decoration:none;flex:none;gap:4px}
.shared-brand img{width:184px;display:block}.shared-brand>span{font-size:10px;letter-spacing:.27em;align-self:flex-end;color:#111}
.shared-links{display:flex;align-items:center;gap:30px;flex-wrap:wrap}.shared-links a{padding:12px 0;border:0;font-size:16px;white-space:nowrap}.shared-links a.active{border-bottom:2px solid #e86820;font-weight:700}
.shared-links a:hover{background:none;color:#e86820}.shared-header+.conf-strip{margin-top:0}
.shell{max-width:1740px;margin:0 auto}.pagecol{min-width:0}
.cover .title-logo{width:230px;height:auto;display:block;margin-bottom:22px}.cover h1 span{display:block}.cover h1{font-size:var(--fs-display);line-height:1.08;letter-spacing:-.035em}.cover-sub{font-size:21px;line-height:1.5;max-width:65ch}
.cover-notes p{font-size:16px;color:#555}.cover-notes{margin-bottom:24px}.cover .label{font-size:13px;margin-bottom:24px}
.mp-grid{grid-template-columns:155px minmax(0,1fr) minmax(0,1fr)}
.mp-cell.open-choice{background:radial-gradient(ellipse at 0 0,#733e24 0,transparent 78%),linear-gradient(135deg,#292622,#111 80%);border:2px solid #e86820;color:#fff}.mp-cell.open-choice .cc-d,.mp-cell.open-choice .cc-u,.mp-cell.open-choice .cc-src{color:#ddd}.open-choice .g-l{fill:#fff}.open-choice .g-nv{stroke:#aaa}.open-choice .mp-counts{border-color:#716356}.open-choice .source-cite{color:#ffbc91}
.mp-cell:hover{box-shadow:0 3px 18px #11111114}.mp-row{font-size:17px;line-height:1.4}.mp-where{font-weight:700}.mp-truth{font-size:17px}.cc-n{font-size:26px}
.spine-logo{display:none!important}.spine-doc{font-size:14px}.part-h{margin-top:20px;font-size:12px}.spine nav a{font-size:15px;padding:7px 8px}.spine nav a.on{background:#f7f2ec;border-color:#e86820}
.margin{font-size:13px}.margin a{font-size:13px}.source-cite{font-size:.92em;font-weight:500;text-decoration-style:dotted}.source-cite:hover{text-decoration-style:solid}
.sel-controls{position:sticky;top:3px;z-index:20;background:#fff;padding:12px 0;border-bottom:1px solid #ddd}.selector{overflow:visible}.seg button{font-size:15px;min-height:44px}.seg button[data-v="a"][aria-checked="true"]{background:linear-gradient(120deg,#733e24,#171614);outline:1px solid #e86820}
.planning-note{margin:26px 0 0;border:1px solid #d8d8d8;border-radius:5px;background:#faf9f7}.planning-note summary{cursor:pointer;font-size:17px;font-weight:700;padding:20px 22px;line-height:1.45}.planning-note[open] summary{border-bottom:1px solid #ddd}.planning-body{padding:24px;overflow-x:auto}.planning-body h2,.planning-body h3{font-size:22px;margin:24px 0 12px}.planning-body .num{display:none}.planning-body .mirrors{font-size:15px;color:#666}.planning-body pre{overflow:auto;font-size:13px}.planning-body table{font-size:15px;min-width:520px}.planning-body svg{max-width:100%}
.guide-footer{border-top:1px solid #ccc;padding:35px 0;margin-top:48px}.footer-name{font-size:28px;font-weight:700;text-decoration:none;letter-spacing:-.03em}.footer-tagline{font-size:19px;line-height:1.6;margin:14px 0}.footer-personal{font-size:15px;color:#666;line-height:1.6}.guide-footer>a:last-child{display:inline-block;margin-top:14px}
@media(min-width:1100px){.shell{grid-template-columns:232px minmax(0,1fr)}.spine{padding-top:20px}.pagecol{padding:30px 194px 56px 30px}.margin{width:160px}.sheet{--pad:36px}}
@media(min-width:1100px) and (max-width:1399px){.pagecol{padding-right:28px}.margin{position:static;width:auto;flex-direction:row;border:0;padding:0;margin:0 0 16px}.mp-grid{grid-template-columns:130px minmax(0,1fr) minmax(0,1fr)}}
@media(max-width:1440px){.shared-nav{margin-inline:54px}}
@media(max-width:1099px){.shared-nav{margin-inline:32px}.topbar{top:3px}.tb-logo{display:none}.topbar{justify-content:flex-end}.cover .title-logo{width:200px}.sel-controls{top:58px}.mp-grid{grid-template-columns:140px minmax(0,1fr) minmax(0,1fr)}}
@media(max-width:700px){.shared-nav{margin-inline:22px;padding:22px 0;align-items:flex-start;flex-direction:column;gap:20px}.shared-brand img{width:164px}.shared-links{gap:12px 20px}.shared-links a{font-size:14px;padding:5px 0}.shared-links a:last-child{display:none}.cover-sub{font-size:18px}.cover .title-logo{width:180px}.mp-grid{grid-template-columns:1fr}.mp-row{padding:16px 0 4px}.mp-col,.mp-corner{display:none}.mp-where{display:block}.mp-cell{padding:20px}.planning-body{padding:18px}.planning-note summary{padding:18px;font-size:16px}.sel-controls{position:static}.seg{width:100%;gap:6px}.seg button{flex:1;font-size:14px;padding:10px}.seg-l{width:100%;padding:5px}.cover h1{font-size:35px}.footer-tagline{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.shared-header,.guide-footer,.conf-strip{display:none}.planning-note{break-inside:auto}.planning-body{overflow:visible}}

.shared-nav .shared-brand{padding:0;border:0}.shared-nav .shared-brand:hover{background:none}.shared-nav{height:116px;min-height:116px}.shared-links a:last-child{font-size:15px}@media(max-width:700px){.shared-nav{height:auto;min-height:0}}