:root{--petrol:#0D3A42;--petrol2:#0a2c33;--bone:#EDE8DC;--bone2:#E3DCCB;--brass:#B98A2E;--brass2:#8f6a1f;--sig:#D2461C;--ink:#1D2224;--mute:#4f5a5c;--line:#c9bfa8;
--serif:Charter,"Bitstream Charter","Sitka Text",Cambria,Georgia,"Noto Serif","DejaVu Serif",serif;--mono:ui-monospace,"Cascadia Mono","SF Mono",Consolas,"DejaVu Sans Mono","Liberation Mono",monospace;--sans:"Segoe UI",Ubuntu,"Noto Sans","DejaVu Sans",system-ui,sans-serif;--rail:236px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bone);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:90;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}
a{color:var(--petrol);text-decoration-color:var(--brass);text-underline-offset:3px}a:hover{color:var(--sig)}
:focus-visible{outline:2px solid var(--sig);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--sig);color:#fff8ef;padding:8px 14px;z-index:100}.skip:focus{left:8px}
.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.14em;font-size:.72rem}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.08;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2.3rem,5.6vw,4.6rem)}h2{font-size:clamp(1.7rem,3.4vw,2.7rem)}h3{font-size:1.3rem}
/* rail */
.rail{position:fixed;inset:0 auto 0 0;width:var(--rail);background:var(--petrol);color:var(--bone);display:flex;flex-direction:column;padding:26px 0 18px;z-index:50;border-right:3px solid var(--brass)}
.rail a{color:var(--bone);text-decoration:none}
.mark{display:flex;gap:10px;align-items:center;padding:0 22px 22px;border-bottom:1px solid #ffffff22}
.mark svg{flex:none}.mark b{font-family:var(--serif);font-size:1.35rem;letter-spacing:.06em;display:block;line-height:1}.mark small{font-family:var(--mono);font-size:.58rem;letter-spacing:.2em;color:var(--brass)}
.chan{list-style:none;margin:18px 0;padding:0;flex:1}
.chan>li{position:relative}
.chan>li>a,.chan>li>button{display:flex;gap:12px;align-items:baseline;width:100%;padding:11px 22px;background:none;border:0;color:var(--bone);font:500 .95rem var(--sans);text-align:left;cursor:pointer}
.chan .n{font-family:var(--mono);font-size:.65rem;color:var(--brass);letter-spacing:.1em}
.chan>li>a[aria-current],.chan>li>a:hover,.chan>li>button:hover,.chan>li>button[aria-expanded=true]{background:var(--petrol2);box-shadow:inset 4px 0 var(--sig)}
.fly{display:none;position:absolute;left:100%;top:0;min-width:270px;background:var(--bone);border:1px solid var(--petrol);box-shadow:10px 12px 0 #0d3a4222;padding:8px;list-style:none;margin:0}
.fly a{display:block;padding:10px 14px;color:var(--ink)!important;border-bottom:1px dashed var(--line)}.fly a:hover{background:var(--bone2)}
.fly a span{display:block;font-size:.8rem;color:var(--mute)}
li.open>.fly{display:block;animation:fly .22s ease-out}
@keyframes fly{from{opacity:0;transform:translateX(-8px)}}
.railfoot{padding:14px 22px 0;border-top:1px solid #ffffff22;font-size:.8rem}
.lang{display:flex;border:1px solid var(--brass);margin-bottom:12px}.lang a,.lang span{flex:1;text-align:center;padding:6px;font-family:var(--mono);font-size:.72rem}.lang span{background:var(--brass);color:var(--petrol2);font-weight:700}
.top{display:none}
main,footer.plate{margin-left:var(--rail)}
/* hero */
.hero{position:relative;min-height:92vh;overflow:hidden;padding:9vh 6vw 8vh;display:grid;align-content:center;border-bottom:1px solid var(--line)}
.hero .copy{max-width:640px;position:relative;z-index:2}
.hero h1 em{font-style:italic;color:var(--sig)}
.lede{font-size:1.15rem;color:var(--mute);max-width:56ch}
.ruler{height:22px;background:repeating-linear-gradient(90deg,var(--petrol) 0 1px,transparent 1px 10px),repeating-linear-gradient(90deg,var(--petrol) 0 1px,transparent 1px 50px);background-size:auto 8px,auto 18px;background-repeat:repeat-x;opacity:.55;margin:22px 0;transform-origin:left;animation:rul 1.2s cubic-bezier(.2,.7,.2,1) both}
@keyframes rul{from{transform:scaleX(0)}}
.dial{position:absolute;right:-14vw;top:50%;width:min(78vw,860px);transform:translateY(-50%);z-index:1}
.bezel{transform-origin:300px 300px;animation:spin 140s linear infinite}
.needle{transform-origin:300px 300px;animation:needle 2.6s cubic-bezier(.3,1.6,.4,1) .4s both}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes needle{from{transform:rotate(-120deg)}to{transform:rotate(38deg)}}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border:1.5px solid var(--petrol);font:600 .95rem var(--sans);text-decoration:none;cursor:pointer;background:transparent;color:var(--petrol);transition:transform .2s}
.btn:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--brass);color:var(--petrol)}
.btn.p{background:var(--petrol);color:var(--bone)}.btn.p:hover{color:var(--bone)}
.readouts{display:flex;flex-wrap:wrap;gap:0;margin-top:38px;border:1px solid var(--petrol);max-width:600px;background:#f4f0e6}
.readouts div{flex:1 1 140px;padding:12px 16px;border-right:1px solid var(--line)}.readouts b{display:block;font-family:var(--serif);font-size:1.3rem;color:var(--petrol)}
/* sections */
.sec{padding:96px 6vw;border-bottom:1px solid var(--line)}
.sec.dark{background:var(--petrol);color:var(--bone)}.sec.dark a{color:var(--bone)}.sec.dark .mono{color:var(--brass)}
.kicker{display:flex;gap:14px;align-items:center;margin-bottom:18px;color:var(--brass2)}.kicker::after{content:"";flex:0 0 80px;height:1px;background:currentColor}
.spec{display:grid;grid-template-columns:240px 1fr;gap:48px}
.spec nav{position:sticky;top:30px;align-self:start}
.spec nav ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--petrol)}
.spec nav a{display:block;padding:7px 14px;text-decoration:none;font-size:.9rem}.spec nav a:hover{box-shadow:inset 3px 0 var(--sig)}
.chs{display:grid;grid-template-columns:repeat(12,1fr);gap:0;border-top:1px solid var(--petrol)}
.ch{grid-column:span 6;padding:30px 28px 34px 0;border-bottom:1px solid var(--line);position:relative}
.ch:nth-child(3n+1){grid-column:span 7}.ch:nth-child(3n+2){grid-column:span 5;padding-left:28px;border-left:1px solid var(--line)}.ch:nth-child(3n){grid-column:span 12}
.ch .mono{color:var(--sig)}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass2);font-weight:600}
.tol{height:8px;background:var(--bone2);position:relative;margin:6px 0 14px}.tol i{position:absolute;inset:0 auto 0 0;background:var(--petrol);transform-origin:left;transform:scaleX(var(--v));transition:transform 1.2s}
.steps{counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;display:grid;grid-template-columns:90px 1fr;gap:18px;padding:22px 0;border-top:1px dashed var(--line)}
.steps li::before{content:"T+" counter(s,decimal-leading-zero);font-family:var(--mono);color:var(--sig);font-size:.85rem;padding-top:4px}
.pagehead{padding:90px 6vw 50px;border-bottom:1px solid var(--petrol);position:relative;overflow:hidden}
.pagehead::after{content:"";position:absolute;right:6vw;bottom:-60px;width:220px;height:220px;border:1px solid var(--brass);border-radius:50%;box-shadow:0 0 0 20px var(--bone),0 0 0 21px var(--line)}
.prose{max-width:72ch}.prose h2{margin-top:1.6em}
.note{border-left:3px solid var(--brass);background:#f5f1e7;padding:14px 18px;margin:18px 0;font-size:.95rem}
details{border-bottom:1px solid var(--line)}summary{cursor:pointer;padding:18px 0;font-family:var(--serif);font-size:1.15rem;list-style:none;display:flex;justify-content:space-between;gap:20px}summary::after{content:"+";font-family:var(--mono);color:var(--sig)}details[open] summary::after{content:"−"}
details>div{padding:0 0 20px}
/* tool */
.cal{display:grid;grid-template-columns:1.2fr .8fr;gap:40px}
.cal fieldset{border:1px solid var(--line);padding:16px 20px;margin:0 0 16px}.cal legend{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass2);padding:0 6px}
.cal label{display:flex;gap:10px;padding:6px 0;cursor:pointer}
.gaugebox{position:sticky;top:24px;align-self:start;background:var(--petrol);color:var(--bone);padding:26px;border:3px solid var(--brass)}
.gaugebox .score{font-family:var(--serif);font-size:3.4rem;line-height:1}
#gn{transform-origin:100px 100px;transition:transform 1s cubic-bezier(.3,1.4,.4,1)}
#gaps li{margin:6px 0;font-size:.9rem}
/* form */
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px}.form .full{grid-column:1/-1}
.form label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--petrol);background:#f7f4ec;font:1rem var(--sans);color:var(--ink);border-radius:0}
textarea{min-height:150px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.seg{display:flex;border:1px solid var(--petrol)}.seg label{flex:1;margin:0;text-align:center;padding:10px;cursor:pointer;font-family:var(--mono);font-size:.72rem}.seg input{position:absolute;opacity:0;width:1px}.seg input:checked+span{color:var(--sig);font-weight:700}
.status{padding:16px;border:1px solid;display:none}.status.ok{display:block;border-color:var(--petrol);background:#e2ece6}.status.err{display:block;border-color:var(--sig);background:#f7e3da}
.map{border:1.5px dashed var(--petrol);aspect-ratio:16/9;display:grid;place-items:center;text-align:center;padding:24px;background:repeating-linear-gradient(0deg,transparent 0 39px,var(--line) 39px 40px),repeating-linear-gradient(90deg,transparent 0 39px,var(--line) 39px 40px)}
.map div{background:var(--bone);padding:18px 22px;border:1px solid var(--line);max-width:420px}
/* footer plate */
footer.plate{background:var(--petrol2);color:var(--bone);padding:60px 6vw 30px}
.plateinner{border:2px solid var(--brass);padding:30px;position:relative;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px}
.plateinner::before,.plateinner::after{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--brass);top:10px;left:10px;box-shadow:calc(100% - 0px) 0 0 0 transparent}
.plateinner::after{left:auto;right:10px}
footer.plate a{color:var(--bone)}footer.plate dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.9rem}footer.plate dt{font-family:var(--mono);font-size:.65rem;letter-spacing:.14em;color:var(--brass);padding-top:4px}footer.plate dd{margin:0}
footer.plate ul{list-style:none;padding:0;margin:0;font-size:.92rem}footer.plate li{padding:3px 0}
.legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:.8rem;opacity:.8}
.linkbtn{background:none;border:0;color:inherit;text-decoration:underline;cursor:pointer;font:inherit;padding:0}
/* cookie */
.cookie{position:fixed;right:20px;bottom:20px;max-width:420px;background:var(--bone);border:2px solid var(--petrol);box-shadow:8px 8px 0 var(--brass);padding:20px;z-index:95;display:none}
.cookie.show{display:block}.cookie .btns{margin-top:12px}.cookie .btn{flex:1;justify-content:center}
.rv{opacity:0;transform:translateY(18px);transition:opacity .8s,transform .8s}.rv.in{opacity:1;transform:none}
@media (max-width:1020px){
 .rail{transform:translateX(-100%);transition:transform .3s;width:min(86vw,340px);overflow:auto}.rail.openm{transform:none}
 .top{display:flex;position:sticky;top:0;z-index:40;background:var(--petrol);color:var(--bone);justify-content:space-between;align-items:center;padding:10px 18px;border-bottom:3px solid var(--brass)}
 .top a{color:var(--bone);text-decoration:none;font-family:var(--serif);font-size:1.2rem;letter-spacing:.06em}
 .top button{background:none;border:1px solid var(--brass);color:var(--bone);padding:8px 12px;font-family:var(--mono);font-size:.7rem}
 main,footer.plate{margin-left:0}
 .fly{position:static;box-shadow:none;border:0;background:var(--petrol2);min-width:0}.fly a{color:var(--bone)!important;border-color:#ffffff22}.fly a span{color:#cfc6b3}.fly a:hover{background:#00000033}
 .spec,.cal{grid-template-columns:1fr}.spec nav{position:static}.gaugebox{position:static}
 .plateinner{grid-template-columns:1fr 1fr}
 .dial{opacity:.25;right:-30vw}
}
@media (max-width:640px){.form{grid-template-columns:1fr}.ch,.ch:nth-child(n){grid-column:span 12;padding-left:0;border-left:0}.plateinner{grid-template-columns:1fr}.sec{padding:64px 5vw}.steps li{grid-template-columns:1fr;gap:4px}.hero{padding:60px 5vw}.cookie{left:12px;right:12px;bottom:12px}table{font-size:.85rem}th,td{padding:8px 6px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}.rv{opacity:1;transform:none}}
.photo{margin:0}.photo .frame{border:2px solid var(--petrol);padding:8px;background:var(--bone2);position:relative}
.photo .frame::after{content:"";position:absolute;inset:8px;border:1px solid #B98A2E88;pointer-events:none}
.photo img{display:block;width:100%;height:auto;object-fit:cover;filter:saturate(.75) contrast(1.05)}
.photo.wide img{aspect-ratio:3/2}.photo.tall{float:right;width:min(42%,340px);margin:0 0 18px 28px}.photo.tall img{aspect-ratio:2/3}
.photo figcaption{font-size:.8rem;color:var(--mute);margin-top:8px;line-height:1.5}
.photosec{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center}
@media (max-width:1020px){.photosec{grid-template-columns:1fr}}
@media (max-width:640px){.photo.tall{float:none;width:100%;margin:0 0 18px}}