/* ==========================================================================
   The Band Codex · codex.drband.com
   Visual system: the Codex brand system (Band context file §2, brand guide v1.3)
   Plum #4A1F2A · Bone #F2EFE8 · Ink #0E0E0C · Rust #8E3A1F (one warm accent)
   Oxblood #6B1A1A (rules and the LOCKED register only) · Smoke #6B6862
   Type: Bodoni Moda (display) · Public Sans (body). No third face.
   Geometry: hairlines, diamonds, radius never above 4px, no pills, no gradients.
   ========================================================================== */
:root{
  --plum:#4A1F2A; --plum-deep:#3A1822; --bone:#F2EFE8; --bone-2:#E8E4DA; --bone-3:#DDD7C8;
  --ink:#0E0E0C; --rust:#8E3A1F; --oxblood:#6B1A1A; --smoke:#6B6862; --ghost:#B9B3AA;
  --paper:#FBFAF6;
  --ink-85:rgba(14,14,12,.85); --ink-70:rgba(14,14,12,.70); --ink-50:rgba(14,14,12,.50);
  --ink-22:rgba(14,14,12,.22); --ink-14:rgba(14,14,12,.14); --ink-08:rgba(14,14,12,.08);
  --bone-70:rgba(242,239,232,.70); --bone-40:rgba(242,239,232,.40); --bone-22:rgba(242,239,232,.22); --bone-12:rgba(242,239,232,.12);
  --ff-display:"Bodoni Moda","Bodoni 72","Didot",Georgia,"Times New Roman",serif;
  --ff-sans:"Public Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --container:1240px; --narrow:880px; --wide:1440px;
  --r:3px; --ease:cubic-bezier(.22,.61,.36,1);
  /* atlas layer colours */
  --c-base:#9C4468; --c-uplift:#D46A35; --c-install:#B3302F; --c-link:#3F86A8; --c-detail:#9A948B;
  --c-artery:#B3261E; --c-nerve:#9A7B1C; --c-ligament:#3E6B5A; --c-muscle:#A65A4E;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:84px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bone);color:var(--ink);font-family:var(--ff-sans);font-size:16.5px;line-height:1.6;font-feature-settings:"kern" 1,"liga" 1;-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
input,select{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:500;letter-spacing:-.012em;line-height:1.08;margin:0}
h1{font-size:clamp(2.4rem,5.2vw,4.6rem)}
h2{font-size:clamp(1.9rem,3.4vw,3rem)}
h3{font-size:clamp(1.35rem,2vw,1.75rem)}
h4{font-size:1.15rem}
p{margin:0 0 1em}
p.lede{font-size:clamp(1.1rem,1.5vw,1.3rem);line-height:1.5;color:var(--ink-85);max-width:44em}
.serif{font-family:var(--ff-display)}
.ital{font-family:var(--ff-display);font-style:italic;font-weight:400}
.eyebrow{font-family:var(--ff-sans);font-size:.72rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--smoke)}
.on-dark .eyebrow{color:var(--bone-70)}
.wrap{width:min(var(--container),calc(100% - 2.5rem));margin:0 auto}
.wrap--narrow{width:min(var(--narrow),calc(100% - 2.5rem));margin:0 auto}
.wrap--wide{width:min(var(--wide),calc(100% - 2.5rem));margin:0 auto}
section{padding:clamp(3.5rem,7vw,6.5rem) 0}
section.tight{padding:clamp(2rem,4vw,3.5rem) 0}
.on-dark{background:var(--ink);color:var(--bone)}
.on-plum{background:var(--plum);color:var(--bone)}
.on-paper{background:var(--paper)}
.hair{height:1px;background:var(--ink-14);border:0;margin:0}
.on-dark .hair{background:var(--bone-22)}
.div{display:flex;align-items:center;gap:12px;margin:1.4rem 0}
.div .ln{height:1.5px;width:64px;background:var(--plum)}
.div .dia{width:8px;height:8px;background:var(--plum);transform:rotate(45deg)}
.on-dark .div .ln,.on-dark .div .dia{background:var(--bone-70)}
.chip{display:inline-block;font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:.28rem .55rem;border:1px solid rgba(74,31,42,.5);color:var(--plum);border-radius:var(--r);vertical-align:middle}
.chip.solid{background:var(--plum);border-color:var(--plum);color:#fff}
.chip.ox{border-color:var(--oxblood);color:var(--oxblood)}
.on-dark .chip{border-color:var(--bone-40);color:var(--bone)}
.on-dark .chip.solid{background:var(--bone);color:var(--ink);border-color:var(--bone)}
.btn{display:inline-flex;align-items:center;gap:.6rem;font-weight:600;font-size:.86rem;letter-spacing:.06em;padding:.9rem 1.35rem;border:1.5px solid var(--plum);color:var(--plum);border-radius:var(--r);transition:background .2s var(--ease),color .2s var(--ease)}
.btn:hover{background:var(--plum);color:var(--bone)}
.btn.solid{background:var(--plum);color:var(--bone)}
.btn.solid:hover{background:var(--plum-deep)}
.on-dark .btn{border-color:var(--bone);color:var(--bone)}
.on-dark .btn:hover{background:var(--bone);color:var(--ink)}
.on-dark .btn.solid{background:var(--bone);color:var(--ink)}
.on-dark .btn.solid:hover{background:#fff}
.btn .arr{font-family:var(--ff-display);font-style:italic;font-size:1.1em;line-height:1}
.link{color:var(--plum);text-decoration:underline;text-underline-offset:.18em;text-decoration-thickness:1px}
.link:hover{color:var(--oxblood)}
.on-dark .link{color:var(--bone)}
.small{font-size:.86rem;color:var(--smoke);line-height:1.55}
.on-dark .small{color:var(--bone-70)}
.mono{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(242,239,232,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--ink-14)}
.hdr .bar{display:flex;align-items:center;justify-content:space-between;height:66px;gap:1.5rem}
.hdr .mark{display:flex;align-items:center;gap:.9rem}
.hdr .mark img{height:24px;width:auto}
.hdr .mark .tag{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding-left:.9rem;border-left:1px solid var(--ink-22)}
.nav{display:flex;align-items:center;gap:1.4rem}
.nav a{font-size:.82rem;font-weight:600;letter-spacing:.04em;color:var(--ink-70);padding:.3rem 0;border-bottom:1.5px solid transparent}
.nav a:hover,.nav a[aria-current]{color:var(--ink);border-bottom-color:var(--plum)}
.nav .door{border:1.5px solid var(--plum);color:var(--plum);padding:.5rem .85rem;border-radius:var(--r);margin-left:.2rem}
.nav .door:hover{background:var(--plum);color:var(--bone);border-bottom-color:var(--plum)}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:22px;height:1.5px;background:var(--ink)}
.burger span::before{top:-7px}.burger span::after{top:7px}
@media (max-width:900px){
  .nav{display:none;position:absolute;left:0;right:0;top:66px;background:var(--bone);flex-direction:column;align-items:stretch;gap:0;padding:.6rem 1.25rem 1.2rem;border-bottom:1px solid var(--ink-14)}
  .nav a{padding:.85rem 0;border-bottom:1px solid var(--ink-08);font-size:1rem}
  .nav .door{margin-top:.8rem;text-align:center;border-bottom:1.5px solid var(--plum)}
  .hdr.open .nav{display:flex}
  .burger{display:flex}
  .hdr .mark .tag{display:none}
}

/* ---------- hero ---------- */
.hero{padding:clamp(3.5rem,8vw,7rem) 0 clamp(2.5rem,5vw,4rem)}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.hero h1{max-width:12ch}
.hero h1 em{font-style:italic;font-weight:400}
.hero .sub{margin-top:1.6rem;max-width:40em}
.hero .actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.hero .figure{position:relative}
.hero .figure img{width:100%;height:auto}
@media (max-width:900px){.hero .grid{grid-template-columns:1fr}}

/* ---------- layout helpers ---------- */
.cols{display:grid;gap:clamp(1.5rem,3vw,3rem)}
.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1000px){.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}}
.sec-head{max-width:58em;margin-bottom:clamp(1.8rem,3vw,3rem)}
.sec-head h2{margin-top:.6rem}
.sec-head p{margin-top:1rem;color:var(--ink-70);max-width:42em}
.on-dark .sec-head p{color:var(--bone-70)}
.card{border:1px solid var(--ink-14);border-radius:var(--r);padding:1.4rem 1.5rem;background:var(--paper)}
.on-dark .card{border-color:var(--bone-22);background:rgba(242,239,232,.03)}
.card h3{margin-bottom:.6rem}
.card p:last-child{margin-bottom:0}
.rule-box{border-left:3px solid var(--oxblood);padding:.9rem 1.2rem;background:var(--paper);border-radius:0 var(--r) var(--r) 0;margin:1.2rem 0}
.rule-box .lbl{font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;color:var(--oxblood);margin-bottom:.35rem}
.rule-box p{margin:0;font-family:var(--ff-display);font-size:1.15rem;line-height:1.35}
.on-dark .rule-box{background:rgba(242,239,232,.04)}
.quote{font-family:var(--ff-display);font-style:italic;font-weight:400;font-size:clamp(1.3rem,2.2vw,1.9rem);line-height:1.3;max-width:30em}
.quote cite{display:block;font-family:var(--ff-sans);font-style:normal;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--smoke);margin-top:1rem}
.on-dark .quote cite{color:var(--bone-70)}
table.t{width:100%;border-collapse:collapse;font-size:.93rem}
table.t th,table.t td{text-align:left;padding:.65rem .8rem;border-bottom:1px solid var(--ink-14);vertical-align:top}
table.t th{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--smoke);font-weight:600}
.on-dark table.t th,.on-dark table.t td{border-color:var(--bone-22)}
.on-dark table.t th{color:var(--bone-70)}
.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch}
.num{font-family:var(--ff-display);font-size:clamp(2.2rem,4vw,3.4rem);line-height:1;color:var(--plum)}
.on-dark .num{color:var(--bone)}
.foot-note{font-size:.8rem;color:var(--smoke);line-height:1.55}
.on-dark .foot-note{color:var(--bone-70)}
ul.plain{list-style:none;padding:0;margin:0}
ul.plain li{padding:.55rem 0;border-bottom:1px solid var(--ink-08)}
ul.plain li:last-child{border-bottom:0}
.on-dark ul.plain li{border-color:var(--bone-12)}
ul.dia{list-style:none;padding:0;margin:0}
ul.dia li{position:relative;padding-left:1.3rem;margin:.5rem 0}
ul.dia li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;background:var(--plum);transform:rotate(45deg)}
.on-dark ul.dia li::before{background:var(--bone)}

/* ---------- rail (the five steps) ---------- */
.rail{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin:2rem 0 1rem}
.rail::before{content:"";position:absolute;left:10%;right:10%;top:11px;height:1.5px;background:var(--ink-22)}
.on-dark .rail::before{background:var(--bone-22)}
.rail .node{text-align:center;padding-top:34px;position:relative}
.rail .node .dot{position:absolute;top:4px;left:calc(50% - 8px);width:16px;height:16px;transform:rotate(45deg);border:1.5px solid var(--ghost);background:var(--bone)}
.on-dark .rail .node .dot{background:var(--ink)}
.rail .node.on .dot{background:var(--oxblood);border-color:var(--oxblood)}
.rail .node .L{font-family:var(--ff-display);font-size:clamp(2rem,4vw,3.2rem);line-height:1}
.rail .node .nm{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--smoke);margin-top:.2rem;font-weight:600}
.rail .node .sig{font-family:var(--ff-display);font-style:italic;font-size:1rem;margin-top:.3rem;color:var(--ink-70)}
.on-dark .rail .node .sig{color:var(--bone-70)}
.rail .node .arch{font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;margin-top:.5rem;color:var(--plum)}
.on-dark .rail .node .arch{color:var(--bone-70)}
@media (max-width:760px){.rail{grid-template-columns:1fr;gap:.6rem}.rail::before{display:none}.rail .node{text-align:left;padding:0 0 0 30px}.rail .node .dot{left:0;top:10px}.rail .node .L{font-size:1.9rem}}

/* ---------- before / after ---------- */
.ba{position:relative;overflow:hidden;border-radius:var(--r);background:var(--ink);aspect-ratio:4/5;cursor:ew-resize;touch-action:pan-y;user-select:none}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba .top{clip-path:inset(0 50% 0 0)}
.ba .rail-line{position:absolute;top:0;bottom:0;left:50%;width:1.5px;background:rgba(242,239,232,.9);pointer-events:none}
.ba .grip{position:absolute;top:50%;left:50%;width:22px;height:22px;transform:translate(-50%,-50%) rotate(45deg);background:var(--bone);pointer-events:none;box-shadow:0 0 18px rgba(0,0,0,.5)}
.ba .tag{position:absolute;top:12px;font-size:.62rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;padding:.35rem .6rem;background:rgba(14,14,12,.6);color:var(--bone);pointer-events:none}
.ba .tagB{left:12px}.ba .tagA{right:12px}
.ba input[type=range]{position:absolute;inset:0;width:100%;height:100%;opacity:0;margin:0;cursor:ew-resize}
.cases{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.cases figure{margin:0}
.cases img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r);background:var(--ink)}
.cases figcaption{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--smoke);margin-top:.5rem;font-weight:600}
@media (max-width:1000px){.cases{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.cases{grid-template-columns:repeat(2,1fr)}}

/* ---------- footer ---------- */
.ftr{background:var(--ink);color:var(--bone);padding:3.5rem 0 2.2rem}
.ftr .top{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2rem}
.ftr h5{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--bone-70);margin:0 0 .9rem;font-weight:600}
.ftr a{display:block;color:var(--bone);font-size:.92rem;padding:.25rem 0;opacity:.9}
.ftr a:hover{opacity:1;text-decoration:underline;text-underline-offset:.18em}
.ftr .legal{margin-top:2.5rem;padding-top:1.4rem;border-top:1px solid var(--bone-22);font-size:.78rem;color:var(--bone-70);line-height:1.6}
.ftr .mark img{height:22px;margin-bottom:1rem}
@media (max-width:900px){.ftr .top{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.ftr .top{grid-template-columns:1fr}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- atlas · the splash stage ---------- */
.atlas-page main{background:#0c0c0b}
.splash{position:relative;height:calc(100vh - 66px);min-height:640px;background:radial-gradient(ellipse at 50% 45%,#1a1917 0%,#0c0c0b 70%);overflow:hidden}
.stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.stage svg{width:100%;height:100%;display:block;touch-action:none;cursor:grab;--u:1}
.stage svg:active{cursor:grabbing}
.loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--bone-70);display:flex;gap:.7rem;align-items:center;background:rgba(14,14,12,.7);padding:.7rem 1rem;border:1px solid var(--bone-22);border-radius:var(--r)}
.loading[hidden]{display:none}
.loading span{width:10px;height:10px;background:var(--rust);transform:rotate(45deg);animation:pulse 1s infinite alternate}
@keyframes pulse{from{opacity:.3}to{opacity:1}}
.hud{position:absolute;background:rgba(14,14,12,.74);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--bone-22);border-radius:var(--r);color:var(--bone);z-index:3}
.hud-col{position:absolute;left:1.25rem;top:1.25rem;bottom:4.6rem;width:262px;display:flex;flex-direction:column;gap:.75rem;z-index:3}
.hud-col .hud{position:static}
.hud-title{flex:none;padding:.9rem 1.05rem;pointer-events:none}
.hud-title .t{font-family:var(--ff-display);font-size:1.55rem;line-height:1.1;margin-top:.4rem}
.hud-title .s{font-size:.8rem;color:var(--bone-70);margin-top:.5rem;line-height:1.45}
.hud-left{flex:1 1 auto;min-height:0;padding:1rem 1.05rem;overflow:auto}
.hud-right{right:1.25rem;top:1.25rem;width:380px;max-height:calc(100% - 2.5rem - 4.5rem);display:flex;flex-direction:column;overflow:hidden}
.hud-right .tabs{display:flex;align-items:center;border-bottom:1px solid var(--bone-22);flex:none}
.hud-right .tabs [role=tab]{padding:.75rem 1rem;font-size:.7rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--bone-70);border-bottom:2px solid transparent;margin-bottom:-1px}
.hud-right .tabs [role=tab][aria-selected=true]{color:var(--bone);border-bottom-color:var(--rust)}
.hud-right .tabs .close{margin-left:auto;padding:.4rem .9rem;font-size:1.3rem;line-height:1;color:var(--bone-70)}
.hud-right .tabs .close:hover{color:var(--bone)}
.hud-right .pane{padding:.9rem 1.05rem 1.1rem;overflow:auto;min-height:0}
.hud-bottom{left:1.25rem;right:1.25rem;bottom:1rem;display:flex;align-items:center;gap:1rem;padding:.55rem .9rem;flex-wrap:wrap}
.hud-bottom .hint{font-size:.72rem;color:var(--bone-70);margin-left:auto}
.zoom{display:inline-flex;border:1px solid var(--bone-40);border-radius:var(--r);overflow:hidden}
.zoom button{padding:.35rem .75rem;font-size:.8rem;font-weight:600;color:var(--bone);min-width:36px}
.zoom button+button{border-left:1px solid var(--bone-40)}
.zoom button:hover{background:var(--bone);color:var(--ink)}
.seg{display:inline-flex;border:1px solid var(--bone-40);border-radius:var(--r);overflow:hidden}
.seg button{padding:.45rem .75rem;font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--bone-70)}
.seg.small button{padding:.35rem .6rem;font-size:.64rem}
.seg button[aria-pressed=true]{background:var(--bone);color:var(--ink)}
.seg button+button{border-left:1px solid var(--bone-40)}
.explode{display:flex;flex-direction:column;gap:.55rem;margin-top:.5rem}
.explode .chip.solid{padding:.55rem .7rem;text-align:center;font-size:.7rem;cursor:pointer}
.explode input[type=range],#surfOp{width:100%;accent-color:var(--rust);margin:0}
.tick{display:flex;align-items:center;gap:.55rem;font-size:.82rem;color:var(--bone);cursor:pointer}
.tick input{accent-color:var(--rust);width:15px;height:15px;margin:0}
.layers{display:flex;flex-direction:column;gap:.15rem;margin-top:.3rem}
.layers label{display:flex;align-items:center;gap:.6rem;font-size:.84rem;padding:.3rem .1rem;cursor:pointer;color:var(--bone)}
.layers input{accent-color:var(--rust);width:15px;height:15px;margin:0}
.layers .sw{width:11px;height:11px;border-radius:2px;flex:none}
.struct-list{list-style:none;margin:0;padding:0}
.struct-list li{padding:.42rem .35rem;font-size:.86rem;cursor:pointer;border-radius:2px;color:var(--bone-70)}
.struct-list li.grp{cursor:default;padding:.7rem .35rem .3rem;font-size:.62rem;color:var(--bone-40)}
.struct-list li:not(.grp):hover,.struct-list li.hot{background:rgba(242,239,232,.08);color:var(--bone)}
.struct-list li.sel{background:var(--bone);color:var(--ink)}
.search{width:100%;padding:.6rem .7rem;border:1px solid var(--bone-40);background:transparent;color:var(--bone);border-radius:var(--r);margin-bottom:.6rem}
.search::placeholder{color:var(--bone-40)}
.detail h3{font-size:1.5rem;margin:.2rem 0 .3rem}
.detail .k{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--bone-70);font-weight:600;margin-top:1rem}
.detail p{font-size:.92rem;line-height:1.55;color:var(--bone);margin:.35rem 0 0}
.detail .cite{font-size:.78rem;color:var(--bone-70);margin-top:.3rem}
.detail .chip{color:var(--bone);border-color:var(--bone-40);cursor:pointer}
.legend{display:flex;flex-wrap:wrap;gap:.5rem .9rem;font-size:.72rem;color:var(--bone-70);align-items:center}
.legend span{display:inline-flex;align-items:center;gap:.4rem}
.legend i{width:10px;height:10px;display:inline-block;border-radius:2px}
.legend .sep{color:var(--bone-40)}
/* svg styling; stroke widths and type follow --u (viewBox units per screen pixel) so they hold size while zooming */
.stage svg .bone-hit path{fill:transparent;stroke:transparent;stroke-width:calc(1.2px * var(--u));cursor:pointer;transition:fill .15s}
.stage svg .bone-hit path:hover,.stage svg .bone-hit path.hot{fill:rgba(242,239,232,.18);stroke:rgba(242,239,232,.7)}
.stage svg .bone-hit path.sel{fill:rgba(212,106,53,.38);stroke:#F2EFE8;stroke-width:calc(1.8px * var(--u));filter:url(#glow)}
.stage svg .bone-hit path.dim{fill:rgba(12,12,11,.62)}
.stage svg .surf-hit path{fill:transparent;stroke:transparent;cursor:pointer}
.stage svg .surf-hit path:hover,.stage svg .surf-hit path.hot{fill:rgba(242,239,232,.12)}
.stage svg .surf-hit path.sel{fill:rgba(212,106,53,.3);stroke:#F2EFE8;stroke-width:calc(1.4px * var(--u))}
.stage svg .contour{fill:none;stroke:rgba(242,239,232,.85);stroke-width:calc(1.5px * var(--u));stroke-linejoin:round;pointer-events:none}
.stage svg .contour.soft{stroke:rgba(242,239,232,.5);stroke-width:calc(1.1px * var(--u))}
.stage svg .terr{stroke-width:calc(2.2px * var(--u));stroke-linejoin:round;cursor:pointer;fill-opacity:.48;transition:fill-opacity .2s}
.stage svg .terr:hover,.stage svg .terr.hot{fill-opacity:.7}
.stage svg .terr.sup{fill-opacity:.22;stroke-dasharray:7 5}
.stage svg .terr.sup.line{stroke-width:calc(8px * var(--u));stroke-linecap:round;fill:none}
.stage svg .terr.sup:hover{fill-opacity:.4}
.stage svg .terr.sel{fill-opacity:.65;stroke:#F2EFE8;filter:url(#glowSoft)}
.stage svg .lm text,.stage svg .plabel,.stage svg .measure{font-family:"Public Sans",sans-serif;font-size:calc(13px * var(--u));fill:#F2EFE8;paint-order:stroke;stroke:#0E0E0C;stroke-width:calc(4px * var(--u));stroke-linejoin:round;letter-spacing:.05em;font-weight:600;pointer-events:none}
.stage svg .lm text{font-size:calc(15px * var(--u))}
.stage svg .vessel{fill:none;stroke:var(--c-artery);stroke-width:calc(3.4px * var(--u));stroke-linecap:round;stroke-linejoin:round;cursor:pointer}
.stage svg .vessel.thin{stroke-width:calc(2.2px * var(--u))}
.stage svg .vessel:hover,.stage svg .vessel.hot{stroke:#FF6B5E}
.stage svg .vessel.sel{stroke:#FFB4AC;filter:url(#glowSoft)}
.stage svg .nerve-pt{fill:var(--c-nerve);stroke:#0E0E0C;stroke-width:calc(1px * var(--u));cursor:pointer;fill-opacity:.9}
.stage svg .nerve-pt:hover,.stage svg .nerve-pt.hot{fill:#F5D66B}
.stage svg .nerve-pt.sel{fill:#FFE99A}
.stage svg .foramen{fill:none;stroke:var(--c-artery);stroke-width:calc(2px * var(--u));cursor:pointer}
.stage svg .foramen:hover,.stage svg .foramen.hot{stroke:#FF6B5E;stroke-width:calc(3px * var(--u))}
.stage svg .foramen.sel{stroke:#FFB4AC;stroke-width:calc(3px * var(--u));filter:url(#glowSoft)}
.stage svg .lig{fill:none;stroke:var(--c-ligament);stroke-width:calc(3px * var(--u));stroke-dasharray:2 6;stroke-linecap:round;cursor:pointer}
.stage svg .lig:hover,.stage svg .lig.hot,.stage svg .lig.sel{stroke:#7FD6B5}
.stage svg .musc{fill:rgba(166,90,78,.35);stroke:rgba(166,90,78,.9);stroke-width:calc(1.3px * var(--u));cursor:pointer}
.stage svg .musc:hover,.stage svg .musc.hot{fill:rgba(166,90,78,.55)}
.stage svg .musc.sel{fill:rgba(166,90,78,.7);stroke:#F2EFE8}
.stage svg .plane{fill:none;stroke:rgba(242,239,232,.85);stroke-width:calc(1.4px * var(--u));stroke-dasharray:10 6}
.stage svg .plane.soft{stroke:rgba(242,239,232,.5)}
.stage svg .angle{fill:none;stroke:#F2EFE8;stroke-width:calc(1.8px * var(--u))}
/* exploded parts */
.stage svg .part{transition:opacity .3s}
.stage svg .part .phit{fill:transparent;stroke:transparent;stroke-width:calc(1.4px * var(--u));cursor:pointer}
.stage svg .part .phit:hover,.stage svg .part .phit.hot{fill:rgba(242,239,232,.14);stroke:rgba(242,239,232,.8)}
.stage svg .part .phit.sel{fill:rgba(212,106,53,.3);stroke:#F2EFE8;stroke-width:calc(2px * var(--u));filter:url(#glow)}
.stage svg .part.dim{opacity:.28}
.stage svg .part .plabel{display:none;fill:var(--bone-70)}
.stage svg .part.labelled .plabel{display:block}
@media (max-width:1100px){.hud-right{width:320px}.hud-col{width:236px}}
.bare .hud,.bare .hud-col,.bare .loading{display:none!important}
@media (max-width:900px){
  .splash{height:auto;min-height:0;display:flex;flex-direction:column;padding:0 0 1rem}
  .stage{position:relative;height:74vh;order:1}
  .hud{position:static;backdrop-filter:none;-webkit-backdrop-filter:none;background:#131211;margin:.8rem 1rem 0;max-height:none}
  .hud-col{position:static;width:auto;display:contents}
  .hud-title{order:0;max-width:none;pointer-events:auto}
  .hud-left{order:2;width:auto}
  .hud-right{order:3;width:auto;max-height:70vh}
  .hud-bottom{order:4;left:auto;right:auto;bottom:auto}
}

/* ---------- instruments (tools) ---------- */
.tool{border:1px solid var(--ink-14);border-radius:var(--r);background:var(--paper);overflow:hidden}
.tool .head{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;padding:1.3rem 1.5rem;border-bottom:1px solid var(--ink-14);flex-wrap:wrap}
.tool .body{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:0}
.tool .canvas{position:relative;background:#111110;min-height:420px}
.tool .canvas svg{width:100%;height:auto;display:block;touch-action:none;position:relative;z-index:1}
.tool .canvas .layer-img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;pointer-events:none}
.tool .readout{padding:1.3rem 1.5rem;border-left:1px solid var(--ink-14)}
.tool .readout h4{font-family:var(--ff-sans);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--smoke);margin:0 0 .6rem}
.tool .readout .row{display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--ink-08);font-size:.92rem;align-items:baseline}
.tool .readout .row b{font-family:var(--ff-display);font-size:1.35rem;font-weight:500;white-space:nowrap}
.tool .readout .row .norm{font-size:.76rem;color:var(--smoke)}
.tool .readout .read{margin-top:1rem;padding:.9rem 1rem;border-left:3px solid var(--plum);background:var(--bone);font-size:.9rem;line-height:1.5}
.tool .readout .read.warn{border-left-color:var(--oxblood)}
.tool .ctrls{display:flex;flex-wrap:wrap;gap:.5rem;padding:.7rem .8rem;background:#1a1917;border-top:1px solid var(--bone-12);align-items:center}
.tool .ctrls button,.tool .ctrls label.up{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--bone);border:1px solid var(--bone-40);padding:.45rem .7rem;border-radius:var(--r);cursor:pointer}
.tool .ctrls button:hover,.tool .ctrls label.up:hover{background:var(--bone);color:var(--ink)}
.tool .ctrls .hint{font-size:.74rem;color:var(--bone-70);margin-left:auto}
.tool svg .pt{fill:#F2EFE8;stroke:#0E0E0C;stroke-width:1.5;cursor:grab}
.tool svg .pt.active{fill:#FFB4AC}
.tool svg .pt-lbl{font-family:"Public Sans",sans-serif;font-size:14px;fill:#F2EFE8;paint-order:stroke;stroke:#0E0E0C;stroke-width:4px;pointer-events:none;letter-spacing:.05em}
.tool svg .ln{fill:none;stroke:rgba(242,239,232,.9);stroke-width:1.8}
.tool svg .ln.ref{stroke:rgba(242,239,232,.45);stroke-dasharray:8 6}
.tool svg .arc{fill:none;stroke:#8E3A1F;stroke-width:3}
.tool svg .arc.bad{stroke:#B3261E}
.tool svg .val{font-family:"Public Sans",sans-serif;font-size:17px;font-weight:600;fill:#F2EFE8;paint-order:stroke;stroke:#0E0E0C;stroke-width:4px;pointer-events:none}
.form{display:grid;gap:1rem}
.form fieldset{border:1px solid var(--ink-14);border-radius:var(--r);padding:.9rem 1rem 1rem;margin:0}
.form legend{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;color:var(--plum);padding:0 .4rem}
.form .q{font-family:var(--ff-display);font-style:italic;font-size:1.05rem;margin:.2rem 0 .5rem}
.form .opts{display:flex;flex-wrap:wrap;gap:.4rem}
.form .opts label{border:1px solid var(--ink-22);border-radius:var(--r);padding:.4rem .7rem;font-size:.84rem;cursor:pointer;display:inline-flex;gap:.45rem;align-items:center}
.form .opts label:has(input:checked){background:var(--plum);color:var(--bone);border-color:var(--plum)}
.form .opts input{accent-color:var(--plum);margin:0}
.plan{border:1px solid var(--ink-14);border-radius:var(--r);background:var(--paper);padding:1.3rem 1.5rem}
.plan .gate{padding:.9rem 1rem;border-left:3px solid var(--oxblood);background:var(--bone);margin-bottom:1rem;font-size:.95rem}
.plan .gate.ok{border-left-color:var(--plum)}
.plan .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;margin:1rem 0}
.plan .step{border:1px solid var(--ink-14);border-radius:var(--r);padding:.7rem .6rem;text-align:center;min-height:120px}
.plan .step .L{font-family:var(--ff-display);font-size:1.7rem;line-height:1}
.plan .step .nm{font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600}
.plan .step .st{font-size:.78rem;margin-top:.45rem;line-height:1.35}
.plan .step.fire{border-color:var(--plum);background:rgba(74,31,42,.06)}
.plan .step.off{opacity:.45}
.plan .step.reduced{border-color:var(--rust)}
.plan .line{display:flex;gap:.8rem;padding:.5rem 0;border-bottom:1px solid var(--ink-08);font-size:.9rem}
.plan .line .k{flex:0 0 150px;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding-top:.2rem}
@media (max-width:1000px){.tool .body{grid-template-columns:1fr}.tool .readout{border-left:0;border-top:1px solid var(--ink-14)}.plan .steps{grid-template-columns:repeat(2,1fr)}}

/* ---------- READ walkthrough ---------- */
.read-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.chapter{border:1px solid var(--ink-14);border-radius:var(--r);padding:1.1rem 1.2rem;background:var(--paper)}
.chapter .L{font-family:var(--ff-display);font-size:2.6rem;line-height:1;color:var(--plum)}
.chapter .nm{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;margin-top:.2rem}
.chapter .k{font-family:var(--ff-display);font-style:italic;color:var(--ink-70);margin:.5rem 0 .8rem;font-size:1rem}
@media (max-width:900px){.read-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.read-grid{grid-template-columns:1fr}}
.qline{display:grid;grid-template-columns:auto 1fr;gap:1rem;padding:1.1rem 0;border-bottom:1px solid var(--ink-14)}
.qline .code{font-family:var(--ff-display);font-size:1.5rem;line-height:1;color:var(--plum);width:2.4rem;align-self:start;padding-top:.15rem}
.qline .q{font-family:var(--ff-display);font-style:italic;font-size:clamp(1.15rem,1.7vw,1.45rem);line-height:1.3}
.qline .fup{font-family:var(--ff-display);font-style:italic;color:var(--ink-70);margin-top:.3rem;font-size:1rem}
.qline .decides{margin-top:.6rem;font-size:.9rem;color:var(--ink-85)}
.qline .decides b{color:var(--plum)}
.obs{display:grid;grid-template-columns:auto 1fr;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--bone-22)}
.obs .code{font-family:var(--ff-display);font-size:1.5rem;line-height:1;width:2.4rem;color:var(--bone);align-self:start;padding-top:.1rem}
.obs h4{font-family:var(--ff-display);font-weight:500;font-size:1.25rem;margin:0 0 .3rem}
.obs p{font-size:.92rem;margin:.2rem 0 0;color:var(--bone-70)}
.obs .routes{font-size:.86rem;color:var(--bone);margin-top:.5rem}
.gates{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
@media (max-width:900px){.gates{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.gates{grid-template-columns:1fr}}
.walk{border:1px solid var(--ink-14);border-radius:var(--r);background:var(--paper);padding:1.4rem 1.5rem}
.walk .stepnav{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1rem}
.walk .stepnav button{font-size:.7rem;font-weight:600;letter-spacing:.12em;padding:.35rem .6rem;border:1px solid var(--ink-22);border-radius:var(--r);color:var(--smoke)}
.walk .stepnav button[aria-current]{background:var(--plum);color:var(--bone);border-color:var(--plum)}
.walk .stepnav button.done{border-color:var(--plum);color:var(--plum)}

/* ---------- BUILD page ---------- */
.step-block{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,4rem);padding:clamp(2rem,4vw,3.5rem) 0;border-top:1px solid var(--ink-14);align-items:start}
.step-block .fig{position:relative;background:#111110;border-radius:var(--r);overflow:hidden}
.step-block .fig img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.step-block .fig svg{position:relative;z-index:1;width:100%;height:auto;display:block}
.step-block .L{font-family:var(--ff-display);font-size:clamp(3rem,6vw,5rem);line-height:1;color:var(--plum)}
.step-block .meta{display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem;font-size:.9rem;margin:1rem 0 1.2rem}
.step-block .meta .k{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding-top:.25rem}
@media (max-width:900px){.step-block{grid-template-columns:1fr}}
.plane-diagram{width:100%;height:auto}
.plane-diagram text{font-family:"Public Sans",sans-serif}

/* ---------- misc ---------- */
.kicker{display:flex;gap:1rem;align-items:baseline;flex-wrap:wrap}
.tocbar{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.4rem}
.tocbar a{font-size:.74rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:.4rem .7rem;border:1px solid var(--ink-22);border-radius:var(--r);color:var(--ink-70)}
.tocbar a:hover{border-color:var(--plum);color:var(--plum)}
.on-dark .tocbar a{border-color:var(--bone-40);color:var(--bone)}
.notice{border:1px solid var(--ink-14);border-left:3px solid var(--rust);border-radius:0 var(--r) var(--r) 0;padding:.9rem 1.1rem;font-size:.9rem;background:var(--paper)}
.on-dark .notice{background:rgba(242,239,232,.04);border-color:var(--bone-22);border-left-color:var(--rust)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--rust);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--plum);color:var(--bone);padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* ---------- atlas · 3D stage ---------- */
.stage .canvas-host{position:absolute;inset:0}
.stage .canvas-host canvas{display:block;width:100%!important;height:100%!important;cursor:grab;touch-action:none}
.stage .canvas-host canvas:active{cursor:grabbing}
.stage .labels{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:2}
.lbl3d{position:absolute;left:0;top:0;font-family:"Public Sans",sans-serif;font-size:12px;font-weight:600;letter-spacing:.05em;color:#F2EFE8;white-space:nowrap;text-shadow:0 0 4px #0E0E0C,0 0 2px #0E0E0C,0 1px 2px #0E0E0C;will-change:transform}
.lbl3d.part{color:rgba(242,239,232,.78)}
.lbl3d.hot{font-size:13px;color:#FFD9C7}
.lbl3d.lm{font-size:11px;color:rgba(242,239,232,.85)}
.lbl3d.measure{font-size:12px;color:#F2EFE8}
.bare .labels{display:none}

/* ---------- access · two altitudes ---------- */
.acct{display:flex;align-items:center;gap:.6rem;margin-left:.4rem;padding-left:.9rem;border-left:1px solid var(--ink-14)}
.acct .in{font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:.5rem .7rem;border:1px solid var(--ink-22);color:var(--ink-70);border-radius:var(--r)}
.acct .in:hover{border-color:var(--plum);color:var(--plum)}
.acct .who{display:inline-flex;align-items:center;gap:.45rem;font-size:.76rem;font-weight:600;color:var(--plum);max-width:11em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct .who i{width:8px;height:8px;background:var(--rust);transform:rotate(45deg);flex:none}
.acct .out{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--smoke);text-decoration:underline;text-underline-offset:.2em}
.hdr.open .acct{border-left:0;padding-left:0;margin:.6rem 0 0}
.nav a.man{position:relative}
.nav a.man::after{content:"";position:absolute;right:-.55em;top:.15em;width:5px;height:5px;background:var(--rust);transform:rotate(45deg)}
html[data-tier=member] .nav a.man::after{display:none}

/* the door */
dialog.door{border:0;padding:0;background:var(--bone);color:var(--ink);width:min(980px,calc(100% - 2rem));max-width:none;border-radius:var(--r);box-shadow:0 30px 80px rgba(0,0,0,.45)}
dialog.door::backdrop{background:rgba(14,14,12,.72);backdrop-filter:blur(6px)}
dialog.door .x{position:absolute;right:.6rem;top:.4rem;font-size:1.7rem;line-height:1;padding:.3rem .6rem;color:var(--smoke);z-index:2}
dialog.door .cols{display:grid;grid-template-columns:1fr 1fr}
dialog.door .side{padding:2.2rem 2.2rem 2rem}
dialog.door .side h3{margin-top:.6rem;font-size:clamp(1.5rem,2.4vw,2rem)}
dialog.door .side .small{margin-top:.9rem}
dialog.door .book{background:var(--plum);color:var(--bone)}
dialog.door .book .eyebrow,dialog.door .book .small{color:var(--bone-70)}
dialog.door .book .btn{background:var(--bone);color:var(--ink);border-color:var(--bone)}
dialog.door .book .btn:hover{background:#fff}
dialog.door .book .link{color:var(--bone)}
dialog.door form{display:grid;gap:.7rem;margin-top:1.2rem}
dialog.door input{padding:.9rem 1rem;border:1.5px solid var(--ink-22);border-radius:var(--r);background:var(--paper);font-family:"Public Sans",sans-serif;font-size:1.05rem;letter-spacing:.12em;text-transform:uppercase}
dialog.door input:focus{border-color:var(--plum);outline:0}
dialog.door .err{min-height:1.3em;font-size:.86rem;color:var(--oxblood)}
dialog.door .foot{margin-top:1.4rem;padding-top:1rem;border-top:1px solid var(--ink-14)}
dialog.door .cohorts{list-style:none;margin:1.2rem 0 0;padding:0;display:grid;gap:.3rem;font-family:var(--ff-display);font-size:1.15rem}
dialog.door .cohorts li::before{content:"";display:inline-block;width:7px;height:7px;background:var(--bone);transform:rotate(45deg);margin-right:.7rem;opacity:.7}
dialog.door .price{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;margin-top:1.2rem;font-size:.9rem;color:var(--bone-70)}
dialog.door .acts{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;margin-top:1.4rem}
dialog.door.want-book .signin{opacity:.55}
@media (max-width:760px){dialog.door .cols{grid-template-columns:1fr}dialog.door .side{padding:1.6rem 1.3rem}}

/* locks */
.lock{position:relative;border:1px solid var(--ink-14);border-radius:var(--r);background:var(--paper);overflow:hidden;margin:1.4rem 0}
.lock .tease{padding:1.2rem 1.4rem .6rem;filter:blur(.6px);opacity:.85;user-select:none;pointer-events:none}
.lock .trow{display:flex;gap:1rem;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--ink-08);font-size:.86rem}
.lock .trow .k{flex:0 0 190px;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600}
.lock .trow .v{flex:1;display:flex;gap:.5rem}
.redact{display:inline-block;height:.85em;background:linear-gradient(90deg,var(--ink-22),var(--ink-14));border-radius:2px;vertical-align:middle}
.lock .lockcard{position:relative;margin:-.2rem 1.4rem 1.4rem;padding:1.4rem 1.5rem;background:var(--bone);border:1px solid var(--ink-14);border-left:3px solid var(--rust);border-radius:0 var(--r) var(--r) 0}
.lock .lockcard h4{font-size:1.35rem;margin:.4rem 0 .5rem}
.lock .lockcard p{font-size:.92rem;color:var(--ink-85);margin:0}
.lock .lockcard .acts{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1rem}
.lock .lockcard .acts .btn{padding:.7rem 1.05rem;font-size:.8rem}
.lock .lockcard .cohorts{margin:.9rem 0 0}
.lock.inline{margin:.8rem 0}
.lock.inline .tease{padding:.6rem 1rem .2rem}
.lock.inline .lockcard{margin:.2rem 1rem 1rem;padding:1rem 1.1rem}
.lock.inline .lockcard.small p{font-size:.86rem}
.lock.dark,.on-dark .lock,.atlas-page .lock{background:rgba(242,239,232,.04);border-color:var(--bone-22)}
.on-dark .lock .lockcard,.atlas-page .lock .lockcard,.lock.dark .lockcard{background:#161513;border-color:var(--bone-22);color:var(--bone)}
.on-dark .lock .lockcard p,.atlas-page .lock .lockcard p,.lock.dark .lockcard p{color:var(--bone)}
.on-dark .lock .trow,.atlas-page .lock .trow{border-bottom-color:var(--bone-12)}
.on-dark .lock .trow .k,.atlas-page .lock .trow .k{color:var(--bone-70)}
.on-dark .redact,.atlas-page .redact{background:linear-gradient(90deg,var(--bone-40),var(--bone-22))}
.on-dark .lock .lockcard .btn,.atlas-page .lock .lockcard .btn{border-color:var(--bone);color:var(--bone)}
.on-dark .lock .lockcard .btn.solid,.atlas-page .lock .lockcard .btn.solid{background:var(--bone);color:var(--ink)}

/* member panels */
.mpanel{border:1px solid var(--ink-14);border-left:3px solid var(--c,var(--plum));border-radius:0 var(--r) var(--r) 0;background:var(--paper);padding:1.3rem 1.5rem;margin:1.4rem 0}
.mpanel.tight{padding:1rem 1.2rem}
.mpanel .k{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--smoke);font-weight:600;margin-top:1.2rem}
.mpanel p{margin:.4rem 0 0;font-size:.95rem}
.mpanel ul.dia{margin:.5rem 0 0;padding-left:1.1rem;font-size:.92rem}
.on-dark .mpanel,.atlas-page .mpanel{background:rgba(242,239,232,.04);border-color:var(--bone-22);color:var(--bone)}
.on-dark .mpanel .k{color:var(--bone-70)}
.kv{display:grid;grid-template-columns:minmax(120px,auto) 1fr;gap:.45rem 1.2rem;margin:.9rem 0 0;font-size:.92rem}
.kv dt{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding-top:.25rem}
.kv dd{margin:0}
.on-dark .kv dt{color:var(--bone-70)}
.codes{width:100%;border-collapse:collapse;font-size:.86rem;margin-top:1rem}
.codes th{text-align:left;font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding:.5rem .6rem;border-bottom:1px solid var(--ink-22);white-space:nowrap}
.codes td{padding:.6rem .6rem;border-bottom:1px solid var(--ink-08);vertical-align:top;line-height:1.45}
.codes td.num{font-variant-numeric:tabular-nums;white-space:nowrap;font-family:var(--ff-display);font-size:1.05rem}
.codes td.num small,.codes td small{font-family:var(--ff-sans);font-size:.72rem;color:var(--smoke)}
.codes tr.hi td{background:rgba(74,31,42,.06)}
.codes .na{color:var(--ghost);font-family:var(--ff-sans);font-size:.78rem}
.codes.routing td:first-child{white-space:nowrap}
.on-dark .codes th,.atlas-page .codes th{color:var(--bone-70);border-bottom-color:var(--bone-40)}
.on-dark .codes td,.atlas-page .codes td{border-bottom-color:var(--bone-12)}
.on-dark .codes td small{color:var(--bone-70)}
.ptcode{display:inline-block;font-family:var(--ff-display);font-weight:600;font-size:1rem;line-height:1;padding:.35rem .5rem;border:1.5px solid var(--c,var(--plum));color:var(--c,var(--plum));border-radius:var(--r);white-space:nowrap;letter-spacing:.02em;vertical-align:middle}
.mfire{display:flex;gap:.9rem;align-items:flex-start;padding:.7rem 0;border-bottom:1px solid var(--ink-08);font-size:.92rem}
.mfire small{color:var(--smoke)}
.totals{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.2rem}
.totals>div{border:1px solid var(--ink-14);border-radius:var(--r);padding:.8rem 1rem;display:grid;gap:.2rem}
.totals .k{margin:0}
.totals b{font-family:var(--ff-display);font-size:1.5rem;font-weight:500}
.totals small{font-size:.72rem;color:var(--smoke)}
@media (max-width:760px){.totals{grid-template-columns:1fr}}
.mpanel .gate{padding:.8rem 1rem;border-left:3px solid var(--oxblood);background:var(--bone);font-size:.92rem;margin-top:.8rem}
.ptcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin-top:1.2rem}
.ptcard{border:1px solid var(--ink-14);border-radius:var(--r);background:var(--paper);padding:1.1rem 1.2rem}
.ptcard header{display:flex;gap:.8rem;align-items:center}
.ptcard h4{font-size:1.2rem;margin:0}
.ptcard h4 small{font-family:var(--ff-sans);font-size:.72rem;color:var(--smoke);letter-spacing:.04em}
.ptcard dl{display:grid;grid-template-columns:auto 1fr;gap:.3rem .9rem;margin:.9rem 0 0;font-size:.86rem}
.ptcard dt{font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600;padding-top:.2rem}
.ptcard dd{margin:0}
.ptcard .small{margin-top:.8rem}
.licence{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.78rem;color:var(--smoke);border:1px solid var(--ink-14);border-radius:var(--r);padding:.7rem 1rem;background:var(--paper)}
.mtoc{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.4rem 0 0}
.mtoc a{font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:.4rem .7rem;border:1px solid var(--ink-22);border-radius:var(--r);color:var(--ink-70)}
.mtoc a:hover{border-color:var(--plum);color:var(--plum)}
.msec{padding:clamp(2rem,4vw,3.5rem) 0;border-top:1px solid var(--ink-14)}
.msec h2{font-size:clamp(1.7rem,3vw,2.4rem)}
.msec h2 .L{font-size:1.15em}
#manualBody{background-repeat:repeat}
.manual-teaser .msec{position:relative}
.manual-teaser .ghost{filter:blur(.7px);opacity:.75;user-select:none;pointer-events:none}
.manual-teaser .ghost .trow{display:flex;gap:1rem;padding:.5rem 0;border-bottom:1px solid var(--ink-08);font-size:.86rem}
.manual-teaser .ghost .trow .k{flex:0 0 190px;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--smoke);font-weight:600}
.manual-teaser .ghost .trow .v{flex:1;display:flex;gap:.5rem}
.altitudes{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.altitudes .card ul{margin:.8rem 0 0;padding-left:1.1rem;line-height:1.6}
.altitudes .card.member{border-color:var(--plum);background:rgba(74,31,42,.04)}
@media (max-width:760px){.altitudes{grid-template-columns:1fr}}
/* atlas · the members layer */
.layers label.lockable .lk{margin-left:auto;font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;color:var(--rust);border:1px solid rgba(142,58,31,.6);padding:.12rem .38rem;border-radius:2px}
html[data-tier=member] .layers label.lockable .lk{display:none}
.lbl3d.code{font-family:"Bodoni Moda",Georgia,serif;font-size:14px;font-weight:600;letter-spacing:.02em;color:#F2EFE8}
.lbl3d.entry{font-size:11px;color:#FFD9C7}
.lbl3d.constr{font-size:10.5px;color:rgba(242,239,232,.8);font-weight:600}
.detail .mpanel{padding:.9rem 1rem;margin:.9rem 0 0}
.detail .kv{font-size:.86rem}
.detail .lock{margin:.9rem 0 0}
.detail .lock .lockcard{margin:.2rem .8rem .9rem;padding:.9rem 1rem}
.detail .lock .lockcard h4{font-size:1.1rem}
.detail .lock .lockcard .acts .btn{padding:.55rem .8rem;font-size:.72rem}
.detail .lock .lockcard .cohorts{display:none}
.detail .lock .tease{padding:.6rem .9rem .2rem}
.detail .lock .trow .k{flex-basis:120px}
/* door: the columns must be allowed to shrink; and the door is never dark, whatever page it opens on */
dialog.door .cols{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0}
dialog.door .side{min-width:0}
dialog.door input{width:100%;min-width:0}
dialog.door .eyebrow{color:var(--smoke)}
dialog.door .small{color:var(--smoke)}
dialog.door .link{color:var(--plum)}
dialog.door .btn{border-color:var(--plum);color:var(--plum)}
dialog.door .btn:hover{background:var(--plum);color:var(--bone)}
dialog.door .btn.solid{background:var(--plum);color:var(--bone)}
dialog.door .btn.solid:hover{background:var(--plum-deep)}
dialog.door .book .eyebrow,dialog.door .book .small{color:var(--bone-70)}
dialog.door .book .link{color:var(--bone)}
dialog.door .book .btn.solid{background:var(--bone);color:var(--ink);border-color:var(--bone)}
dialog.door .book .btn.solid:hover{background:#fff}
dialog.door h3{color:var(--ink)}
dialog.door .book h3{color:var(--bone)}
/* header: ten items now; never let a label wrap */
.nav a{white-space:nowrap}
.acct .in{white-space:nowrap}
@media (max-width:1560px){.hdr .mark .tag{display:none}}
@media (max-width:1250px){.nav{gap:1.1rem}.nav a{font-size:.78rem}.nav .door{padding:.45rem .65rem}.acct{padding-left:.7rem;margin-left:.2rem}}
@media (max-width:1080px){.nav{gap:.9rem}.nav a{font-size:.76rem;letter-spacing:.02em}}

/* the portal page */
.portal-form{display:grid;gap:.7rem;margin-top:1rem}
.portal-form input{padding:.9rem 1rem;border:1.5px solid var(--ink-22);border-radius:var(--r);background:var(--paper);font-family:"Public Sans",sans-serif;font-size:1.05rem;letter-spacing:.12em;text-transform:uppercase;width:100%}
.portal-form input:focus{border-color:var(--plum);outline:0}
.portal-form .btn{justify-self:start}
.portal-form .err{font-size:.86rem;color:var(--oxblood);margin:0}
.portal-cards a.card{display:block;transition:border-color .2s var(--ease)}
.portal-cards a.card:hover{border-color:var(--plum)}
.portal-cards .card h3{margin-bottom:.4rem}