/* SuDu's full colour field, hairlines, Urbanist and shared chrome frame a
   single drawing. Navigation and reading each have one deliberate place. */
:root{--tools:56px}
.workspace{grid-template-columns:minmax(0,1fr) 288px;gap:44px}
.structures{padding:0 0 16px 26px;scrollbar-width:thin}
.family-tabs{gap:0;justify-content:space-between}
.family-tabs button{min-height:48px;font-size:15px;padding:0 2px}
.shape-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:14px 0 27px}
.shape-grid button{min-height:76px;padding:7px 1px;font-size:11px;background:none!important;border-bottom:0;position:relative;gap:4px;opacity:.65}
.shape-grid button svg{width:46px;height:39px;stroke-width:1;transition:none}
.shape-grid button span{min-height:27px;line-height:1.2;overflow-wrap:normal;hyphens:auto}
.shape-grid button:hover{opacity:1}.shape-grid button:hover svg{transform:none}
.shape-grid button[aria-pressed=true]{opacity:1;font-weight:600}
.shape-grid button[aria-pressed=true]:after{content:'';position:absolute;bottom:2px;left:30%;right:30%;height:1px;background:var(--ink)}
.subject h2{font-size:30px;font-weight:400;line-height:1.13;letter-spacing:-.6px;margin:0}
.subject .eyebrow{font-size:10px;opacity:.65;margin-bottom:9px}
.subject-basis{font-size:12px;margin:13px 0 10px;opacity:.7}
.subject-copy{font-size:15px;line-height:1.6;margin:0}
.entry-actions{display:flex;align-items:flex-start;flex-direction:column;margin:16px 0 8px}
.entry-actions .text-link{font-size:15px;min-height:42px}
.entry-actions #start{font-size:12px;opacity:.75}
.stage-top{font-size:10px;inset:14px 0 auto;gap:12px}.stage-top span:first-child{letter-spacing:.1em}.stage-top span:last-child{opacity:.65}
.discovery-dock{padding:8px 0 10px;gap:0;background:var(--paper);max-width:620px;margin:auto}
.journey-stepper{display:grid;grid-template-columns:44px minmax(0,1fr) 44px;gap:16px;width:min(100%,480px);align-items:center;text-align:center}
.journey-stepper button{width:44px;height:48px;display:grid;place-items:center}
.journey-stepper>div{min-width:0}
.step-eyebrow{display:block;font-size:10px;opacity:.6;letter-spacing:.08em;margin-bottom:5px}
#step-title{font-size:28px;font-weight:400;line-height:1.2;letter-spacing:-.5px;display:block}
.sudu-chevron{font-family:'Urbanist',sans-serif;font-size:22px;font-weight:700;letter-spacing:-.12em;line-height:1;display:inline-flex;align-items:center;justify-content:center;width:1.2em;height:1.2em;flex:none}
.journey-stepper .sudu-chevron{font-size:30px}
#previous .sudu-chevron{transform:scaleX(-1)}
#action-note{font-size:14px;line-height:1.5;max-width:480px;text-align:center;min-height:21px;margin:10px 0 8px;text-wrap:pretty}
.scrub-control{width:min(82%,350px);margin:3px 0 0}
.scrub-control label{display:flex;justify-content:space-between;font-size:11px;gap:12px;line-height:1.4}
.scrub-control output{font-variant-numeric:tabular-nums;opacity:.65}
.scrub-control input[type=range]{height:40px}
.range-ends{display:flex;justify-content:space-between;font-size:10px;opacity:.65;margin-top:-5px}
#touch-hint{font-size:10px;opacity:.65;margin:11px 0 0;line-height:1.4;text-align:center;display:block}
.construction-panel{margin-top:22px;border-top:.5px solid var(--line);padding-top:16px}
.construction-steps{display:flex;gap:0;padding:0;margin:0 0 13px;border-bottom:.5px solid var(--line)}
.construction-steps button{flex:1;min-width:0;min-height:44px;padding:0 1px;font-size:11px;position:relative}
.construction-steps button[aria-current=step]{font-weight:600}
.construction-steps button[aria-current=step]:after{content:'';position:absolute;inset:auto 4px -1px;height:2px;background:var(--ink)}
#construction-count{font-size:10px;opacity:.65;margin:0 0 3px}
#construction-note{font-size:13px;line-height:1.6;margin:0 0 8px}
#construction-ratio{font-size:11px;line-height:1.5}
.plane-picker{display:flex;gap:9px;align-items:center;margin:6px 0 0}
.plane-picker button{font-size:12px;min-width:36px;min-height:44px}
.plane-picker button:first-child{margin-right:auto;text-align:left}
.plane-picker button[aria-pressed=true]{text-decoration:underline;text-underline-offset:6px;font-weight:600}
#construction-plane-tools .control-note:last-child{font-size:11px;opacity:.65}
.model-actions{justify-content:flex-start;gap:0 18px;flex-wrap:wrap}
.model-actions button{font-size:12px;min-height:44px;line-height:1.4;text-align:left}
.adjustments{border-top:.5px solid var(--line);padding-top:8px;margin-top:18px}
.control-note{font-size:12px;line-height:1.55;opacity:.8;margin:0 0 8px}
#solo{position:relative;padding-left:13px}#solo:before{content:'';position:absolute;width:5px;height:5px;border:1px solid var(--ink);border-radius:50%;left:0;top:calc(50% - 3px)}#solo[aria-pressed=true]:before{background:var(--ink)}
#node-control summary{font-size:12px;min-height:44px;align-content:center;cursor:pointer}#node{font-size:13px}
.read-link{border-top:.5px solid var(--line);width:100%;margin:18px 0 0;min-height:55px;font-size:14px;line-height:1.5;text-align:left;text-decoration:underline;text-underline-offset:5px}
.footer{gap:20px}.footer>span{font-size:11px;opacity:.65}.footer-actions button{font-size:12px}
.reading-tabs{position:sticky;top:0;background:var(--paper);gap:30px;padding-top:7px;z-index:1}
.reading-tabs button{font-size:15px;min-height:52px}
.article{font-size:18px;line-height:1.8;padding:28px 0 20px;max-width:560px}
.article-kicker{font-size:11px;opacity:.65;margin-bottom:16px}
.source-list a{display:block;font-size:15px;line-height:1.5;min-height:44px;padding:11px 0;border-bottom:.5px solid var(--line)}
.source-list p{font-size:14px;line-height:1.6;margin-top:20px}
.golden-explanation{border-block:.5px solid var(--line);padding:8px 0 16px;margin-bottom:20px}
.golden-explanation summary{font-size:15px;cursor:pointer;min-height:44px;align-content:center}
.golden-explanation svg{display:block;width:min(100%,320px);margin:20px auto}
.golden-explanation p{font-size:15px;line-height:1.7}.golden-formula{text-align:center}
.archive-links{display:flex;gap:22px;flex-wrap:wrap}.archive-links a{font-size:12px;opacity:.7}
.inline-reading{border-top:.5px solid var(--line);margin-top:18px}
.inline-reading .reading-tabs{position:static;gap:22px;padding-top:0}
.inline-reading .reading-tabs button{font-size:13px;min-height:48px}
.inline-reading .article{font-size:15px;line-height:1.65;padding:18px 0 0}
.inline-reading .article-kicker{font-size:10px;margin-bottom:10px}
.inline-reading .read-link{border-top:0;margin:0;min-height:44px;font-size:12px}
.inline-reading .source-list a{font-size:13px}
.inline-reading .source-list p{font-size:13px;margin-bottom:8px}
.workspace.reading-expanded{grid-template-columns:minmax(0,1fr) min(640px,52vw)}
.reading-expanded .structures{padding-left:36px;max-height:none}
.reading-expanded .structures>:not(.inline-reading){display:none}
.reading-expanded .inline-reading{margin-top:0;border-top:0}
.reading-header{position:sticky;top:0;z-index:4;background:var(--paper);padding-bottom:18px}
.reading-return{display:flex;align-items:center;gap:12px;min-height:48px;font-size:13px;text-align:left}
.reading-return .sudu-chevron{transform:scaleX(-1)}
.reading-header h2{font-size:36px;line-height:1.15;font-weight:400;letter-spacing:-.6px;margin:18px 0 0}
.reading-expanded .inline-reading .reading-tabs{gap:32px}
.reading-expanded .inline-reading .reading-tabs button{font-size:15px;min-height:52px}
.reading-expanded .inline-reading .article{font-size:19px;line-height:1.8;padding:28px 0 16px}
.reading-expanded .inline-reading .article-kicker{font-size:11px;margin-bottom:16px}
.reading-expanded .inline-reading .source-list a{font-size:16px}
.reading-expanded .inline-reading .source-list p{font-size:15px}
.journey-item{display:grid;grid-template-columns:22px 58px minmax(0,1fr) 24px;gap:14px;align-items:center;width:100%;min-height:78px;padding:10px 0;border-bottom:.5px solid var(--line);text-align:left}
.journey-item svg{width:58px;height:52px}.journey-item strong{font-size:18px;font-weight:400;display:block}.journey-item small{font-size:12px;line-height:1.5;display:block;margin-top:5px;opacity:.7}.journey-item>span:first-child{font-size:10px}.journey-item[aria-current=step] strong{text-decoration:underline;text-underline-offset:5px}
.workspace.focus-mode{grid-template-columns:1fr}.focus-mode .stage{grid-area:auto}.focus-mode .discovery-dock{background:var(--paper)}
@media(min-width:1900px){.workspace{grid-template-columns:minmax(0,1fr) 320px;gap:64px}.subject h2{font-size:34px}.subject-copy{font-size:16px}}
@media(max-width:1100px) and (min-width:761px){.workspace{grid-template-columns:minmax(0,1fr) 260px;gap:24px}.structures{padding-left:20px}.stage-top{flex-direction:column;gap:3px}.stage-top span:last-child{text-align:left;max-width:100%}.subject h2{font-size:27px}}
@media(max-height:620px) and (min-width:761px){.stage-top{inset:2px 0 auto}.discovery-dock{padding-bottom:3px}#step-title{font-size:22px}#action-note{font-size:12px;margin:6px 0}#touch-hint{display:none}.scrub-control input[type=range]{height:30px}.journey-stepper button{height:40px}}

/* Keep family access at hand while construction controls scroll. */
.family-tabs{position:sticky;top:0;z-index:3;background:var(--paper)}
#model{scroll-margin-top:var(--header)}

/* Mystical reading stays in the existing study panel, with native disclosures. */
.mystic-title{font-size:1.5em;font-weight:400;line-height:1.25;letter-spacing:-.025em;margin:0 0 18px}
.mystic-intro{margin:0 0 28px}
.mystic-chapter{border-top:.5px solid var(--line);padding:0}
.mystic-chapter summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:15px 0;font-size:1.08em;line-height:1.4;cursor:pointer;list-style:none;overflow-wrap:anywhere}
.mystic-chapter summary::-webkit-details-marker{display:none}
.mystic-chapter summary .sudu-chevron{flex-shrink:0;font-size:20px;transition:transform .15s}
.mystic-chapter[open]>summary .sudu-chevron{transform:rotate(90deg)}
.mystic-body{padding:4px 0 24px}.mystic-body>p{margin:0 0 18px}
.mystic-citations{margin:-4px 0 24px}.mystic-citations a{display:block;min-height:44px;padding:9px 0;font-size:.8em;line-height:1.55;text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}
.mystic-practice{margin-top:24px;padding:18px 0 0;border-top:.5px solid var(--line)}
.mystic-practice p{margin:0 0 12px}.mystic-go{display:flex;align-items:center;justify-content:space-between;gap:14px;text-align:left;min-height:48px;width:100%;padding:10px 0;font-size:.9em;line-height:1.5}
.mystic-about>p{margin:0 0 24px}.source-list h3{font-size:1.15em;font-weight:400;margin:30px 0 8px}
@media(prefers-reduced-motion:reduce){.mystic-chapter summary .sudu-chevron{transition:none}}