/* Dancore homepage. The hero is a live drawing; everything else stays quiet. */
:root{
 --ink:#14213D;      /* drawing ink, headings */
 --signal:#1B4F9C;   /* Wi-Fi, links */
 --brass:#C9982F;    /* cable routes, doors: from the Dancore mark */
 --paper:#F5F7FA;    /* cool drafting paper */
 --sheet:#FFFFFF;
 --graphite:#4A5263; /* body copy */
 --rule:#D5DAE3;
 --grid:rgba(20,33,61,.045);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'IBM Plex Sans','Helvetica Neue',Arial,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Sora','Helvetica Neue',Arial,sans-serif;margin:0;font-weight:600;letter-spacing:-.025em;line-height:1.08}
p{margin:0}
a{color:var(--signal)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
.wrap{max-width:1320px;margin:0 auto;padding:0 40px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:20}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:15px 24px;border-radius:2px;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border:1.5px solid transparent}
.btn-ink{background:var(--ink);color:#fff}.btn-ink:hover{background:var(--signal);color:#fff}
.btn-quiet{border-color:var(--ink);color:var(--ink)}.btn-quiet:hover{background:var(--ink);color:#fff}
.btn-brass{background:var(--brass);color:var(--ink)}.btn-brass:hover{background:#B8872A;color:var(--ink)}

/* header */
.top{position:sticky;top:0;z-index:10;background:rgba(245,247,250,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.top-row{display:flex;justify-content:space-between;align-items:center;height:76px;gap:24px}
.wordmark{display:flex;align-items:baseline;font-family:'Sora',sans-serif;font-weight:600;font-size:32px;line-height:1;letter-spacing:-.035em;color:var(--signal);text-decoration:none}
.wordmark img{width:.62em;height:.62em;margin:0 .02em -.012em .035em}
.nav{display:flex;align-items:center;gap:28px;font-size:16px}
.nav a:not(.btn){color:var(--ink);text-decoration:none}
.nav a:not(.btn):hover{color:var(--signal)}
.nav .btn{padding:11px 18px}

/* the drawing board */
.board{background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px;border-bottom:1px solid var(--rule)}
.board-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);grid-template-areas:'copy sheet' 'panel sheet';grid-template-rows:auto 1fr;column-gap:56px;row-gap:26px;align-items:start;padding-top:64px;padding-bottom:72px}
.board-copy{grid-area:copy;display:flex;flex-direction:column;gap:22px;padding-top:12px}
.board-panel{grid-area:panel;display:flex;flex-direction:column;gap:22px}
.sheet{grid-area:sheet}
.board h1{font-size:clamp(36px,3.9vw,56px);line-height:1.02;letter-spacing:-.035em;font-weight:700}
.lead{font-size:19px;color:var(--graphite);max-width:34em}
.small{font-size:14px;color:var(--graphite)}

.controls{display:flex;flex-direction:column;gap:22px;background:var(--sheet);border:1px solid var(--rule);padding:24px 24px 26px}
.control{display:flex;flex-direction:column;gap:10px}
.control-head{display:flex;justify-content:space-between;align-items:baseline}
.control label{font-weight:600;font-size:15px}
.control output{font-family:'Sora',sans-serif;font-weight:600;font-size:34px;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.hint{font-size:13px;color:var(--graphite)}
.control input[type=date],.control select{font:inherit;font-size:17px;padding:12px 14px;border:1.5px solid var(--ink);border-radius:2px;background:var(--sheet);color:var(--ink)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;margin:0}
input[type=range]::-webkit-slider-runnable-track{height:4px;background:linear-gradient(90deg,var(--ink) var(--fill,20%),var(--rule) var(--fill,20%))}
input[type=range]::-moz-range-track{height:4px;background:var(--rule)}
input[type=range]::-moz-range-progress{height:4px;background:var(--ink)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;margin-top:-11px;border-radius:50%;background:var(--brass);border:3px solid var(--sheet);box-shadow:0 0 0 1.5px var(--ink)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--brass);border:3px solid var(--sheet);box-shadow:0 0 0 1.5px var(--ink)}
.actions{display:flex;gap:12px;flex-wrap:wrap}

.sheet{margin:0;display:flex;flex-direction:column;gap:0}
.sheet-frame{background:var(--sheet);border:1.5px solid var(--ink);padding:10px}
#drawing{display:block;width:100%;height:auto}
.readouts{display:grid;grid-template-columns:repeat(3,1fr);border:1.5px solid var(--ink);border-top:0;background:var(--sheet)}
.readout{display:flex;flex-direction:column;gap:4px;padding:16px 18px 18px}
.readout + .readout{border-left:1px solid var(--rule)}
.r-label{font-size:13px;font-weight:600;color:var(--graphite)}
.r-value{font-family:'Sora',sans-serif;font-weight:600;font-size:24px;letter-spacing:-.02em;line-height:1.15;font-variant-numeric:tabular-nums}
.r-note{font-size:13px;color:var(--graphite)}
.r-value.on-track{color:#1E6B45}.r-value.tight{color:#8A5A00}.r-value.at-risk{color:#A12C2C}
.sheet-error{margin-top:10px;font-size:14px;color:#8A5A00}

/* drawing symbols (shared with the legend) */
.plate{fill:#FBFCFD;stroke:var(--ink);stroke-width:2.5}
.core{fill:url(#hatch);stroke:var(--ink);stroke-width:1.25}
.desk{fill:var(--ink);opacity:.55}
.sym-room,.room{fill:#EEF2F8;stroke:var(--ink);stroke-width:1.25}
.room.board-room{fill:#E4EAF4}
.sym-comms,.comms{fill:var(--ink);stroke:var(--ink)}
.sym-rack{stroke:#fff;stroke-width:1.5}
.sym-cable,.sym-route,.route{fill:none;stroke:var(--brass);stroke-width:2.5;stroke-dasharray:7 4;stroke-linecap:round;stroke-linejoin:round}
.sym-cover,.cover{fill:rgba(27,79,156,.08);stroke:rgba(27,79,156,.5);stroke-width:1;stroke-dasharray:3 4}
.sym-ap,.ap{fill:var(--signal)}
.sym-door,.door{fill:var(--brass);stroke:var(--ink);stroke-width:1}
.sym-cam,.cam{fill:var(--sheet);stroke:var(--signal);stroke-width:1.5;stroke-linejoin:round}
.sym-node{fill:var(--sheet);stroke:var(--ink);stroke-width:1.5}
.sym-link{stroke:var(--signal);stroke-width:1.5;fill:none}
.ann{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:10.5px;fill:var(--graphite)}
.ann-strong{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:11px;font-weight:500;fill:var(--ink)}
.ann-inv{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:9.5px;fill:#fff}
.tb{fill:var(--sheet);stroke:var(--ink);stroke-width:1.25}
.dim{stroke:var(--graphite);stroke-width:1}
@media (prefers-reduced-motion:no-preference){
 .drawing-in .route{stroke-dashoffset:0;animation:draw 1.4s ease-out both}
 @keyframes draw{from{stroke-dasharray:0 1600}to{stroke-dasharray:7 4}}
}

/* stance */
.stance{background:var(--ink);color:#fff}
.stance-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:72px;padding-top:96px;padding-bottom:96px;align-items:start}
.stance h2{font-size:clamp(34px,3.8vw,54px);letter-spacing:-.035em}
.stance-points{display:flex;flex-direction:column;gap:22px;color:#D7DBE4;font-size:18px}
.stance-points strong{color:#fff;font-weight:600}

/* sections */
.legend,.stages,.about{border-bottom:1px solid var(--rule)}
.legend .wrap,.stages .wrap,.about .wrap{padding-top:104px;padding-bottom:104px}
.sec-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:end;margin-bottom:48px}
.sec-head h2{font-size:clamp(30px,3.4vw,48px)}
.sec-head p{color:var(--graphite);font-size:18px}

.key{margin:0;border-top:2px solid var(--ink)}
.key-row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;padding:22px 0;border-bottom:1px solid var(--rule);align-items:baseline}
.key dt{display:flex;align-items:center;gap:18px;font-family:'Sora',sans-serif;font-weight:600;font-size:21px;letter-spacing:-.015em}
.key dt svg{flex:0 0 48px;width:48px;height:24px}
.key dd{margin:0;color:var(--graphite)}

.stages{background:var(--sheet)}
.ruler{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));border-top:2px solid var(--ink)}
.ruler li{position:relative;padding:22px 18px 8px 0;display:flex;flex-direction:column;gap:6px}
.ruler li::before{content:"";position:absolute;left:0;top:-2px;height:14px;width:2px;background:var(--ink)}
.ruler li.key-stage{background:linear-gradient(var(--paper),var(--paper)) padding-box}
.ruler li.key-stage::after{content:"";position:absolute;left:0;right:0;top:-2px;height:4px;background:var(--brass)}
.ruler .st{font-family:'Sora',sans-serif;font-weight:700;font-size:40px;line-height:1;letter-spacing:-.04em;padding-left:10px}
.ruler h3{font-family:'IBM Plex Sans',sans-serif;font-size:16px;letter-spacing:0;padding-left:10px}
.ruler p{font-size:14px;color:var(--graphite);padding-left:10px}
.ruler .out{margin-top:6px;color:var(--ink);font-weight:500;border-left:3px solid var(--brass);padding-left:8px;margin-left:10px}

.about-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:72px;align-items:start}
.person{margin:0;position:relative}
.person img{display:block;width:100%;max-width:320px;height:auto;aspect-ratio:1;object-fit:cover;border-radius:4px;box-shadow:0 0 0 1px rgba(201,211,230,.18),18px 18px 0 -1px rgba(201,152,47,.9)}
.person figcaption{display:flex;flex-direction:column;gap:2px;margin-top:34px;font-size:15px;color:#AEB9CF}
.person strong{font-family:'Sora',sans-serif;font-size:20px;color:#fff;font-weight:600}
.person .creds{margin-top:8px;font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--brass);letter-spacing:.04em}
.about-main{display:flex;flex-direction:column;gap:28px}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:8px 0 0;border-top:1px solid rgba(201,211,230,.18)}
.facts div{padding:20px 16px 0 0;min-width:0}
.facts dt{font-family:'Sora',sans-serif;font-weight:700;font-size:clamp(32px,3.4vw,46px);letter-spacing:-.04em;color:#fff;line-height:1}
.facts dd{margin:8px 0 0;font-size:14px;color:#AEB9CF}
.about .record{padding-top:0}
.record-title{font-family:'IBM Plex Sans',sans-serif;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--brass);margin-bottom:22px}
.record-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:rgba(201,211,230,.14);border:1px solid rgba(201,211,230,.14)}
.record-grid li{background:#0E1830;padding:24px 24px 26px;display:flex;flex-direction:column;gap:8px;transition:background .3s}
.record-grid li:hover{background:#13213F}
.record-grid .tag{font-family:'IBM Plex Mono',monospace;font-size:12px;color:#8FA0C0;letter-spacing:.03em}
.record-grid h4{margin:0;font-family:'Sora',sans-serif;font-size:19px;font-weight:600;letter-spacing:-.015em;color:#fff;line-height:1.25}
.record-grid p{margin:0;font-size:15px;color:#AEB9CF;line-height:1.55}
.about h2{font-size:clamp(30px,3.2vw,44px)}
.about-copy{display:flex;flex-direction:column;gap:18px;color:var(--graphite);font-size:18px;max-width:38em}
.about-copy .aside{font-size:16px;border-top:1px solid var(--rule);padding-top:18px}

.contact{background:var(--ink);color:#fff}
.contact-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:72px;padding-top:96px;padding-bottom:96px;align-items:center}
.contact h2{font-size:clamp(32px,3.6vw,50px)}
.contact p{color:#D7DBE4;font-size:18px;margin-top:18px;max-width:36em}
.contact-list{display:flex;flex-direction:column;gap:14px;font-size:19px}
.contact-list a:not(.btn){color:#fff}
.contact-list .btn{align-self:flex-start;margin-bottom:8px}

.foot{font-size:14px;color:var(--graphite)}
.foot-row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-top:28px;padding-bottom:28px}
.foot nav{display:flex;gap:24px}
.foot a{color:var(--graphite)}

@media (max-width:1100px){
 .board-grid{grid-template-columns:1fr;grid-template-areas:'copy' 'sheet' 'panel';row-gap:28px}
 .ruler{grid-template-columns:repeat(4,minmax(0,1fr))}
 .ruler li:nth-child(n+5){border-top:1px solid var(--rule);margin-top:12px}
}
@media (max-width:760px){
 .wrap{padding:0 16px}
 .top-row{height:64px}.wordmark{font-size:27px}
 .board-grid{padding-top:36px;padding-bottom:44px}
 .lead{font-size:17px}
 .controls{padding:18px}
 .sheet-frame{padding:4px}
 .readouts{grid-template-columns:1fr}
 .readout + .readout{border-left:0;border-top:1px solid var(--rule)}
 .readout{display:grid;grid-template-columns:1fr auto;align-items:baseline;column-gap:12px;padding:12px 14px}
 .r-value{font-size:19px;text-align:right}
 .r-note{grid-column:1 / -1}
 .actions .btn{flex:1 1 100%}
 .stance-grid,.sec-head,.about-grid,.contact-grid{grid-template-columns:1fr;gap:28px}
 .stance-grid,.contact-grid{padding-top:56px;padding-bottom:56px}
 .legend .wrap,.stages .wrap,.about .wrap{padding-top:60px;padding-bottom:60px}
 .about .record{padding-top:0}
 .person{display:flex;gap:20px;align-items:center}
 .person img{width:120px;box-shadow:0 0 0 1px rgba(201,211,230,.18),8px 8px 0 -1px rgba(201,152,47,.9)}
 .person figcaption{margin-top:0}
 .facts{grid-template-columns:1fr}
 .facts div{display:grid;grid-template-columns:150px 1fr;gap:12px;align-items:baseline;padding:16px 0 0}
 .facts dt{font-size:30px;white-space:nowrap}
 .facts dd{margin:0;font-size:15px}
 .record-grid{grid-template-columns:1fr}
 .key-row{grid-template-columns:1fr;gap:6px}
 .ruler{grid-template-columns:repeat(2,minmax(0,1fr))}
 .ruler li:nth-child(n+3){border-top:1px solid var(--rule);margin-top:12px}
}

/* ---------- the story: a building at night, taken apart by scrolling ---------- */
.story{--night:#0E1830;position:relative;height:560vh;margin-top:-76px;background:var(--night);color:#fff}
.story-pin{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.scene{position:absolute;top:0;bottom:0;left:14%;right:-14%;transform-origin:62% 55%;will-change:transform;
 -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16%);mask-image:linear-gradient(90deg,transparent 0,#000 16%)}
.layer{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 50%;opacity:0;will-change:opacity}
.layer-0{opacity:1}
/* On squarer screens the image is cropped at the sides; show more of its left so the building clears the text. */
.story{--x:0}
@media (min-width:1600px){.scene{left:19%;right:-19%}}
@media (min-width:761px) and (max-aspect-ratio:16/10){.layer{object-position:22% 50%}.scene{left:10%;right:-10%}}
@media (min-width:761px) and (max-aspect-ratio:4/3){.layer{object-position:8% 50%}}
.layer-4{transform-origin:50% 50%}
@media (prefers-reduced-motion:no-preference){
 .layer-1{animation:glow 4s ease-in-out infinite}
 @keyframes glow{50%{filter:brightness(1.08) saturate(1.08)}}
}
.story-pin::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(14,24,48,.94) 0%,rgba(14,24,48,.7) 30%,rgba(14,24,48,0) 46%)}
.story-captions{position:relative;z-index:1;height:100%;pointer-events:none}
.cap{position:absolute;left:40px;bottom:13vh;max-width:min(560px,34vw);opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;pointer-events:none}
.cap p{color:#C9D3E6;font-size:19px;max-width:32em}
.cap h2{font-size:clamp(30px,3.4vw,54px);letter-spacing:-.035em;margin:10px 0 18px;line-height:1.02}
.cap-0{bottom:auto;top:calc(76px + 8vh);max-width:min(600px,36vw)}
.cap-0 h1{font-size:clamp(44px,5.3vw,92px);font-weight:700;letter-spacing:-.045em;line-height:.95;margin-bottom:28px}
.cap-0 p{font-size:20px}
.cap-actions{display:flex;align-items:center;gap:26px;margin-top:32px;flex-wrap:wrap}
.scroll-cue{font-size:15px;color:#C9D3E6;display:inline-flex;align-items:center;gap:10px}
.scroll-cue::before{content:"";width:1.5px;height:34px;background:linear-gradient(var(--brass),transparent)}
.cap-service{display:flex;align-items:center;gap:12px;color:var(--brass)!important;font-weight:600;font-size:16px!important}
.cap-service::before{content:"";width:28px;height:2px;background:var(--brass)}
.story[data-chapter="0"] .cap-0,.story[data-chapter="1"] .cap-1,.story[data-chapter="2"] .cap-2,.story[data-chapter="3"] .cap-3,.story[data-chapter="4"] .cap-4{opacity:1;transform:none;pointer-events:auto}
.rail{position:absolute;z-index:3;left:40px;right:40px;bottom:28px;height:2px;background:rgba(201,211,230,.18)}
.rail-fill{position:absolute;left:0;top:0;bottom:0;width:calc(var(--story,0) * 100%);background:var(--brass)}
.rail ol{list-style:none;margin:0;padding:0;position:absolute;left:0;right:0;top:10px;display:grid;grid-template-columns:repeat(5,1fr);font-size:12px;color:rgba(201,211,230,.5)}
.rail li{transition:color .4s}
.story[data-chapter="0"] .rail li:nth-child(1),.story[data-chapter="1"] .rail li:nth-child(2),.story[data-chapter="2"] .rail li:nth-child(3),.story[data-chapter="3"] .rail li:nth-child(4),.story[data-chapter="4"] .rail li:nth-child(5){color:#fff}
.story[data-light="true"] .rail{background:rgba(20,33,61,.15)}
.story[data-light="true"] .rail li{color:rgba(20,33,61,.45)}
.story[data-light="true"] .rail li:nth-child(5){color:var(--ink)}
/* Captions: each heading is uncovered from below when its chapter starts. */
@media (prefers-reduced-motion:no-preference){
 .cap h1,.cap h2{clip-path:inset(0 0 100% 0);transition:clip-path .9s cubic-bezier(.2,.7,.1,1) .05s}
 .story[data-chapter="0"] .cap-0 h1,.story[data-chapter="1"] .cap-1 h2,.story[data-chapter="2"] .cap-2 h2,.story[data-chapter="3"] .cap-3 h2,.story[data-chapter="4"] .cap-4 h2{clip-path:inset(0 0 -10% 0)}
}
/* At the end of the story the night turns into drawing paper, and the type turns to ink with it. */
.story-light{position:absolute;left:0;right:0;top:0;height:140%;z-index:1;background:linear-gradient(to bottom,rgba(245,247,250,0) 0%,rgba(245,247,250,.55) 18%,var(--paper) 40%);transform:translateY(calc((1 - var(--lit,0)) * 100%));pointer-events:none;will-change:transform}
.story-captions{z-index:2}
.story-pin::after{transition:opacity .6s}
.story[data-light="true"] .story-pin::after{opacity:0}
.story[data-light="true"] .cap{color:var(--ink)}
.story[data-light="true"] .cap p{color:var(--graphite)}
.cap{transition:opacity .6s ease,transform .6s ease,color .6s}
/* Lights on: the night fades into drawing paper as the story hands over to the board. */


.top{transition:background .3s,border-color .3s}
.top.on-dark{background:rgba(14,24,48,.55);border-bottom-color:rgba(201,211,230,.1);backdrop-filter:blur(10px)}
.top.on-dark .wordmark{color:#fff}
.top.on-dark .nav a:not(.btn){color:#fff}
.top.on-dark .btn-ink{background:#fff;color:var(--ink)}
.board-title{font-size:clamp(36px,3.9vw,56px);line-height:1.02;letter-spacing:-.035em;font-weight:700}

/* No WebGL: the story becomes a plain, readable section. */
.no-webgl .story{height:auto;margin-top:0}
.no-webgl .story-pin{position:static;height:auto;overflow:visible}
.no-webgl .rail{display:none}
.autoplay{position:absolute;z-index:4;right:40px;bottom:52px;font:500 12px/1 'IBM Plex Sans',Arial,sans-serif;letter-spacing:.04em;color:rgba(255,255,255,.75);background:rgba(14,24,48,.45);border:1px solid rgba(201,211,230,.3);border-radius:999px;padding:8px 14px;cursor:pointer;backdrop-filter:blur(6px)}
.autoplay:hover{color:#fff;border-color:var(--brass)}
.autoplay[hidden]{display:none}
.story[data-light="true"] .autoplay{color:var(--ink);background:rgba(255,255,255,.6);border-color:rgba(20,33,61,.25)}
.no-webgl .story-captions{display:flex;flex-direction:column;gap:56px;padding-top:120px;padding-bottom:96px}
.no-webgl .cap{position:static;opacity:1;transform:none}

@media (max-width:760px){
 .story{margin-top:-64px;height:600vh}
 .story-pin::after{background:linear-gradient(0deg,rgba(14,24,48,.97) 0%,rgba(14,24,48,.75) 40%,rgba(14,24,48,0) 64%)}
 .scene{left:-38%;right:auto;width:150vw;top:72px;bottom:auto;height:calc(150vw * 768 / 1376);-webkit-mask-image:linear-gradient(#000 78%,transparent);mask-image:linear-gradient(#000 78%,transparent)}
 .layer{object-position:50% 50%}
 .cap{left:16px;right:16px;bottom:7vh;max-width:none}
 .cap p{font-size:16px}
 .cap-0{top:auto;bottom:7vh;max-width:none}
 .cap-0 h1{font-size:44px;margin-bottom:16px}
 .cap-0 p{font-size:16px}
 .cap-actions{margin-top:20px;gap:16px}
 .rail{left:16px;right:16px;bottom:18px}
 .autoplay{right:16px;top:76px;bottom:auto}
 .rail ol{display:none}
 .no-webgl .story-captions{padding-top:96px}
}

/* ---------- after the drawing board, the page goes back to night ---------- */
.legend,.stages,.about,.foot{background:#0E1830;color:#fff;border-bottom:1px solid rgba(201,211,230,.12)}
.legend,.about{background-image:linear-gradient(rgba(201,211,230,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(201,211,230,.035) 1px,transparent 1px);background-size:32px 32px}
.stance{border-bottom:1px solid rgba(201,211,230,.12)}
.legend .sec-head p,.stages .sec-head p,.key dd,.ruler p,.about-copy{color:#AEB9CF}
.key{border-top-color:rgba(255,255,255,.85)}
.key-row{border-bottom-color:rgba(201,211,230,.14);transition:background .3s}
.key-row:hover{background:rgba(201,211,230,.04)}
.key-row:hover dt svg{filter:drop-shadow(0 0 6px rgba(217,168,58,.65))}
.legend .sym-room{fill:rgba(207,224,255,.12);stroke:#CFE0FF}
.legend .sym-comms{fill:#CFE0FF;stroke:#CFE0FF}
.legend .sym-rack{stroke:#0E1830}
.legend .sym-node,.legend .sym-cam{fill:#0E1830}
.legend .sym-node{stroke:#CFE0FF}
.legend .sym-ap{fill:#4F8FE8}
.legend .sym-cover{fill:rgba(79,143,232,.16);stroke:rgba(79,143,232,.7)}
.legend .sym-cable,.legend .sym-route{stroke:#D9A83A}
@media (prefers-reduced-motion:no-preference){
 .legend .sym-cable,.legend .sym-route{stroke-dasharray:60;stroke-dashoffset:60;transition:stroke-dashoffset 1.2s ease}
 .legend.in .sym-cable,.legend.in .sym-route{stroke-dashoffset:0;stroke-dasharray:7 4}
}
.stages .ruler{border-top-color:rgba(255,255,255,.25);position:relative}
.stages .ruler::after{content:"";position:absolute;left:0;top:-2px;height:2px;width:calc(var(--stages,0) * 100%);background:var(--brass);box-shadow:0 0 12px rgba(217,168,58,.7)}
.stages .ruler li::before{background:rgba(255,255,255,.5)}
.stages .ruler li.key-stage{background:rgba(201,211,230,.05)}
.stages .ruler .out{color:#fff}
.stages .ruler .st{color:#fff}
.about-copy .aside{border-top-color:rgba(201,211,230,.18)}
.about a,.foot a{color:#CFE0FF}
.foot{color:#AEB9CF;border-bottom:0;border-top:1px solid rgba(201,211,230,.12)}
@media (max-width:760px){.stages .ruler::after{display:none}}

/* Top menu: inline on wide screens, a drop-down on phones */
.menu{display:flex;align-items:center;gap:28px}
.menu a{color:var(--ink);text-decoration:none}
.top.on-dark .menu a{color:#fff}
.menu-btn,.menu-only{display:none}
@media (max-width:760px){
 .menu-btn{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;font:inherit;font-size:16px;font-weight:600;background:transparent;border:1.5px solid currentColor;border-radius:2px;color:var(--ink);cursor:pointer}
 .top.on-dark .menu-btn{color:#fff}
 .menu{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:0;background:#0E1830;border-bottom:1px solid rgba(201,211,230,.15);padding:8px 16px 16px}
 .menu.open{display:flex}
 .menu a,.top .menu a,.nav .menu a:not(.btn){display:block;color:#fff;padding:14px 4px;font-size:18px;border-bottom:1px solid rgba(201,211,230,.12)}
 .menu-only{display:block}
 .nav{gap:10px}
}
section[id]{scroll-margin-top:72px}