@font-face{font-family:'Limelight';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/limelight-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Josefin Sans';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/josefin-sans-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Josefin Sans';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/josefin-sans-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Josefin Sans';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/josefin-sans-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Source Serif 4';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/source-serif-4-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Source Serif 4';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/source-serif-4-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Source Serif 4';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/source-serif-4-latin-400-italic.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2')}
/* Base */
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: a 1930s receiver — dial-scale hero, catalogue rows for products, a reference "library" set like a valve-carton shelf. */
:root{
  --bg:#E4E9E2;        /* celadon bakelite */
  --surface:#F1F4EF;
  --ink:#1A201D;
  --muted:#56625C;
  --line:#BFC9C1;
  --brass:#8E6A22;
  --brass-soft:#C9A65A;
  --teal:#1E4C4A;
  --dial:#F3E7C4;      /* lit dial glass */
  --dial-ink:#2A2216;
  --needle:#B0361F;
  --mat:#FFFFFF;
  --display:"Limelight", "Didot", Georgia, serif;
  --head:"Josefin Sans", "Futura", "Century Gothic", sans-serif;
  --body:"Source Serif 4", Georgia, "Times New Roman", serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
  --radius:3px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#111816; --surface:#18211F; --ink:#E6E4DA; --muted:#9AA79F; --line:#2D3A36;
  --brass:#D2AA55; --brass-soft:#8C6F31; --teal:#7FB8B2; --dial:#2A2414; --dial-ink:#F1D88F; --needle:#E8603F; --mat:#ECEEE9; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111816; --surface:#18211F; --ink:#E6E4DA; --muted:#9AA79F; --line:#2D3A36;
  --brass:#D2AA55; --brass-soft:#8C6F31; --teal:#7FB8B2; --dial:#2A2414; --dial-ink:#F1D88F; --needle:#E8603F; --mat:#ECEEE9; color-scheme:dark}

*{box-sizing:border-box}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) img.inkimg{filter:invert(.9) hue-rotate(180deg)}}
:root[data-theme="dark"] img.inkimg{filter:invert(.9) hue-rotate(180deg)}
body{background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{margin:0;text-wrap:balance}
.eyebrow{font:600 12px/1 var(--head);letter-spacing:.22em;text-transform:uppercase;color:var(--brass)}
.h2{font:700 clamp(26px,3.4vw,34px)/1.15 var(--head);letter-spacing:.04em;text-transform:uppercase}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

/* Header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:24px;padding-block:14px;flex-wrap:wrap}
.brand{display:flex;flex-direction:column;text-decoration:none;cursor:pointer;background:none;border:0;padding:0;color:inherit;text-align:left}
.brand .logo{display:block;width:230px;height:auto;--logo-ink:var(--ink);--logo-accent:var(--brass)}
@media (max-width:560px){.brand .logo{width:190px}}
.brand span{font:600 10px/1.6 var(--head);letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-top:4px}
nav.main{display:flex;gap:4px 22px;flex-wrap:wrap;margin-left:auto}
nav.main a{font:600 13px/1 var(--head);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover{border-color:var(--brass)}

/* Hero */
.hero{padding-block:56px 40px;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero h1{font:400 clamp(40px,6vw,72px)/1.02 var(--display);letter-spacing:.01em;margin-top:14px}
.hero p.lede{font-size:19px;color:var(--muted);max-width:34em;margin:18px 0 26px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{font:700 13px/1 var(--head);letter-spacing:.16em;text-transform:uppercase;padding:15px 22px;border-radius:var(--radius);text-decoration:none;border:1.5px solid var(--ink);cursor:pointer;background:transparent;color:var(--ink)}
.btn.solid{background:var(--ink);color:var(--bg)}
.btn:hover{border-color:var(--brass)}
.btn.solid:hover{background:var(--teal);border-color:var(--teal)}

/* The dial */
.set{background:var(--teal);border-radius:14px 14px 6px 6px;padding:22px 22px 18px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.25)}
.set .glass{background:var(--dial);color:var(--dial-ink);border-radius:8px;padding:16px 14px 10px;position:relative;overflow:hidden;box-shadow:inset 0 2px 10px rgba(0,0,0,.18)}
.set svg{display:block;width:100%;height:auto}
.set .cap{display:flex;justify-content:space-between;align-items:center;margin-top:14px;color:#E9E3CF;font:600 11px/1 var(--head);letter-spacing:.2em;text-transform:uppercase}
.knob{width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#d6b46a,#7a5a1c 70%);box-shadow:0 2px 0 rgba(0,0,0,.3)}
.readout{position:absolute;right:12px;top:10px;font:500 12px/1 var(--mono);letter-spacing:.06em;opacity:.8}

/* Sections */
section{padding-block:56px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px;border-bottom:1px solid var(--line);padding-bottom:14px}
.sec-head p{margin:6px 0 0;color:var(--muted);max-width:40em}

/* Transmitter catalogue */
.cat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.prod{display:flex;flex-direction:column;gap:10px;min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.prod .ph{aspect-ratio:4/3}
.prod h3{font:700 18px/1.2 var(--head);letter-spacing:.06em;text-transform:uppercase}
.prod .spec{font:500 12.5px/1.4 var(--mono);color:var(--brass)}
.prod p{margin:0;font-size:15.5px;color:var(--muted)}
.prod .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:baseline;padding-top:10px;border-top:1px solid var(--line)}
.price{font:500 17px/1 var(--mono);font-variant-numeric:tabular-nums}
.price:empty::before{content:"\00a0"}
.more{font:700 12px/1 var(--head);letter-spacing:.16em;text-transform:uppercase;text-decoration:none;color:var(--teal);background:none;border:0;cursor:pointer;padding:0}
.more:hover{color:var(--brass)}
.prod.lead{grid-column:span 2;display:grid;grid-template-columns:1.1fr 1fr;gap:20px;background:var(--surface);padding:18px;border:1px solid var(--line);border-radius:var(--radius)}
.prod.lead .ph{aspect-ratio:auto;min-height:220px}
.prod.lead .txt{display:flex;flex-direction:column;gap:10px;min-width:0}
.tag{align-self:start;font:700 10.5px/1 var(--head);letter-spacing:.18em;text-transform:uppercase;padding:6px 8px;border:1px solid var(--brass);color:var(--brass);border-radius:2px}

/* Image placeholders */
.ph{position:relative;border-radius:var(--radius);border:1px dashed var(--brass-soft);
  background:repeating-linear-gradient(135deg,transparent 0 9px,color-mix(in srgb,var(--brass-soft) 22%,transparent) 9px 10px),var(--surface);
  display:grid;place-items:center;text-align:center;padding:12px;max-width:100%}
.ph span{font:500 11px/1.4 var(--mono);color:var(--muted);letter-spacing:.04em;background:var(--surface);padding:4px 8px}

/* Product photos sit on a white mat, like a catalogue plate */
.shot{background:transparent;border:1px solid transparent;border-radius:var(--radius);display:grid;place-items:center;padding:12px;overflow:hidden;max-width:100%}
.shot img{display:block;max-width:100%;max-height:100%;object-fit:contain;filter:drop-shadow(0 6px 8px rgba(0,0,0,.25))}
.shot img.inkimg{filter:none}
.thumbs .shot img{filter:drop-shadow(0 2px 3px rgba(0,0,0,.25))}
.thumbs .shot{border-color:var(--line)}
.prod .shot{aspect-ratio:16/10;padding:20px}
.prod.lead .shot{aspect-ratio:auto;min-height:220px}
.lib-art-unused{display:block;width:100%;max-width:300px;background:var(--mat);padding:10px;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:22px}

/* Clipart: the old line drawings, inked in the page's own colour */
.clip,.clip-lg,.clip-sm{display:block;flex:none;width:72px;height:72px;background:var(--ink);-webkit-mask:var(--i) center/contain no-repeat;mask:var(--i) center/contain no-repeat}
.clip-lg{width:120px;height:120px}
.clip-sm{width:56px;height:56px}
.lib-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.lib-head h3{margin:0}
.arts{display:grid;gap:14px;margin-bottom:28px}
.art{display:flex;gap:14px;align-items:center;text-decoration:none}
.art b{display:block;font:700 14px/1.3 var(--head);letter-spacing:.08em;text-transform:uppercase}
.art span.t{font-size:15px;color:var(--muted)}
.art:hover b{color:var(--brass)}


/* Library */
.lib{background:var(--surface);border-block:1px solid var(--line)}
.libgrid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.libgrid h3{font:700 14px/1 var(--head);letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px;color:var(--teal)}
.shelf{list-style:none;margin:0;padding:0}
.shelf li{display:grid;grid-template-columns:52px 1fr;gap:12px;padding:9px 0;border-bottom:1px dotted var(--line);align-items:baseline}
.shelf .yr{font:500 13px/1 var(--mono);color:var(--brass)}
.shelf a{text-decoration:none}.shelf a:hover{text-decoration:underline;text-decoration-color:var(--brass)}
.plain{list-style:none;margin:0;padding:0}
.plain li{padding:8px 0;border-bottom:1px dotted var(--line)}
.plain a{text-decoration:none}.plain a:hover{text-decoration:underline;text-decoration-color:var(--brass)}
.xref{margin-top:28px;padding:18px;border:1.5px solid var(--ink);border-radius:var(--radius)}
.xref h3{color:var(--ink)}
.xref p{margin:0 0 12px;font-size:15.5px;color:var(--muted)}

/* Contact */
.contact{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.contact h2{font:400 clamp(28px,4vw,40px)/1.1 var(--display)}
.mail{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mail code{font:500 18px/1 var(--mono);padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);user-select:all}
footer{border-top:1px solid var(--line);padding-block:24px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{text-decoration:none}footer a:hover{color:var(--brass)}

/* Product page */
.crumb{font:600 12px/1 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding-block:22px 0}
.crumb a{background:none;border:0;padding:0;font:inherit;letter-spacing:inherit;color:var(--teal);cursor:pointer}
.pd{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;padding-block:24px 40px;align-items:start}
.gal .main{aspect-ratio:4/3}
.thumbs .shot{height:100%;padding:4px}
.thumbs button[aria-pressed="true"] .shot{border:2px solid var(--brass)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
a.pp{text-decoration:none}
a.pp[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
.eu{font-size:14.5px;border-left:3px solid var(--brass);padding:4px 0 4px 14px}
.eu p{margin:0 0 8px}.eu ol{margin:0 0 12px;padding-left:20px;display:grid;gap:6px}
.agree{display:flex!important;gap:10px;align-items:flex-start;font:600 14px/1.4 var(--body)!important;letter-spacing:0!important;text-transform:none!important;color:var(--ink)!important;cursor:pointer}
.agree input{margin-top:3px;accent-color:var(--teal)}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}
.thumbs button{aspect-ratio:1;padding:0;cursor:pointer;background:none;border:0;position:relative}
.pd h1{font:400 clamp(36px,5vw,56px)/1 var(--display);margin:10px 0 6px}
.pd .sub{font:600 14px/1.4 var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pd .intro{margin:16px 0 20px}
.buy{border:1.5px solid var(--ink);border-radius:var(--radius);padding:20px;display:grid;gap:14px;background:var(--surface)}
.buy .row{display:grid;gap:6px}
.buy label{font:700 11px/1 var(--head);letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.buy select{font:400 16px/1.3 var(--body);padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);color:var(--ink);width:100%}
.total{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid var(--line);padding-top:14px}
.total b{font:500 30px/1 var(--mono);font-variant-numeric:tabular-nums}
.total small{color:var(--muted);font-size:13px}
.pp{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:15px;border-radius:24px;border:0;background:#FFC439;color:#111;font:700 16px/1 var(--head);letter-spacing:.04em;cursor:pointer}
.pp:hover{filter:brightness(.95)}
.pp i{font-style:italic;font-weight:700}.pp i b{color:#003087}.pp i em{color:#009CDE;font-style:italic}
.note{font-size:13.5px;color:var(--muted);margin:0}
.notice{font-size:14px;padding:10px 12px;border-left:3px solid var(--brass);background:var(--bg)}

.region{display:inline-flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.region button{font:700 12px/1 var(--head);letter-spacing:.14em;padding:9px 14px;border:0;background:transparent;color:var(--ink);cursor:pointer}
.region button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.tune{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:14px}
.tune div{background:var(--surface);padding:14px}
.tune dt{font:700 10.5px/1 var(--head);letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.tune dd{margin:8px 0 0;font:500 20px/1 var(--mono);font-variant-numeric:tabular-nums}

.oleds{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:16px}

/* Articles: reprints set like a period magazine page */
.article{padding-block:24px 64px}
.ahead{max-width:46rem;margin-bottom:28px}
.ahead h1{font:400 clamp(34px,5vw,58px)/1.04 var(--display);margin:12px 0 14px}
.stand{font-size:20px;line-height:1.55;color:var(--muted);margin:0}
.ahead-cover{max-width:none;display:grid;grid-template-columns:1fr 240px;gap:40px;align-items:start}
.afig{margin:28px 0;display:grid;gap:8px}
.afig .mat{background:var(--mat);border:1px solid var(--line);border-radius:var(--radius);padding:14px;display:grid;place-items:center}
.afig img{display:block;max-width:100%;height:auto}
.lineart-fig{width:100%}
.afig.lineart-fig:not(.wide):not(.cover){max-width:none}
.lineart{width:100%;background:var(--ink);-webkit-mask:var(--i) center/contain no-repeat;mask:var(--i) center/contain no-repeat}
.afig figcaption{font:500 12.5px/1.5 var(--mono);color:var(--muted)}
.afig:not(.wide):not(.cover){max-width:340px}
.afig.cover{margin:0}
.afig.cover .mat{background:none;border:0;padding:0;border-radius:0;display:block}
.afig.cover img{width:100%;box-shadow:0 6px 18px rgba(0,0,0,.28)}
.afig.wide .mat img{width:100%;max-width:560px}
.warn{max-width:46rem;padding:14px 16px;border:1.5px solid var(--needle);border-radius:var(--radius);color:var(--ink);font-size:16px;margin-bottom:12px}
.warn b{color:var(--needle)}
.abody{max-width:40rem;min-width:0}
.abody h2{font:700 20px/1.25 var(--head);letter-spacing:.08em;text-transform:uppercase;margin:44px 0 12px;scroll-margin-top:110px}
.abody > h2:first-child{margin-top:12px}
.abody p{margin:0 0 1.05em;hyphens:auto}
.alayout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;align-items:start}
.toc{position:sticky;top:calc(env(safe-area-inset-top,0px) + 100px)}
.toc ol{list-style:none;margin:12px 0 0;padding:0;counter-reset:t}
.toc li{counter-increment:t;padding:7px 0;border-bottom:1px dotted var(--line);font-size:15px;display:flex;gap:10px}
.toc li::before{content:counter(t);font:500 12px/1.9 var(--mono);color:var(--brass);min-width:14px}
.toc a{text-decoration:none}.toc a:hover{color:var(--brass)}
.bom{margin:28px 0 0;padding:14px;border:1.5px solid var(--ink);border-radius:var(--radius);font-size:14.5px}
.bom dt{font:700 11px/1 var(--head);letter-spacing:.18em;text-transform:uppercase;margin-bottom:8px}
.bom dd{margin:0;padding:4px 0}
.aside-box{border-left:3px solid var(--brass);padding:4px 0 4px 16px;margin:24px 0}
.aside-box ol{margin:10px 0 0;padding-left:20px;display:grid;gap:6px}
.steps{padding-left:0;list-style:none;counter-reset:s;display:grid;gap:10px;margin:0 0 1em}
.steps li{counter-increment:s;display:grid;grid-template-columns:28px 1fr;gap:6px}
.steps li::before{content:counter(s);font:500 13px/1.8 var(--mono);color:var(--brass)}
.next{margin-top:56px;padding-top:20px;border-top:1px solid var(--line);display:grid;gap:8px}
.next a{justify-self:start;background:none;border:0;padding:0;font:400 clamp(22px,3vw,30px)/1.2 var(--display);color:var(--ink);cursor:pointer;text-align:left}
.next a:hover{color:var(--brass)}
/* Art & ephemera */
.ghead{padding-block:12px 28px}
.ghead > *{max-width:52rem}
.ghead h1{font:400 clamp(34px,5vw,58px)/1.04 var(--display);margin:12px 0 14px}
.colls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-bottom:56px}
.coll{min-width:0;display:grid;gap:6px;justify-items:start;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;cursor:pointer;color:var(--ink);font:inherit}
.coll:hover{border-color:var(--brass)}
.coll b{font:700 18px/1.2 var(--head);letter-spacing:.08em;text-transform:uppercase}
.coll .t{color:var(--muted);font-size:15.5px}
.coll .n{font-size:12px;color:var(--brass);margin-top:6px}
.fan{display:flex;align-items:flex-end;height:190px;margin-bottom:8px;padding-left:10px;max-width:100%;overflow:hidden}
.fan img{height:170px;width:auto;margin-left:-22px;box-shadow:0 4px 14px rgba(0,0,0,.22);border-radius:2px;transition:transform .2s}
.fan img:first-child{margin-left:0}
.fan img:nth-child(odd){transform:rotate(-3deg)}.fan img:nth-child(even){transform:rotate(2.5deg) translateY(-6px)}
.fan-cards img{height:auto;width:150px;margin-left:-60px}
.fan-valves img{height:160px;margin-left:-8px}
.coll:hover .fan img{transform:none}
.fan-radios{gap:14px;padding-left:0}
.fan-radios img,.fan-radios img:nth-child(odd),.fan-radios img:nth-child(even){height:auto;max-height:110px;width:auto;max-width:30%;margin-left:0;box-shadow:none;border-radius:0;transform:none;filter:drop-shadow(0 5px 5px rgba(0,0,0,.28));transition:transform .25s}
.coll:hover .fan-radios img:nth-child(odd){transform:rotate(-4deg)}
.coll:hover .fan-radios img:nth-child(even){transform:rotate(3.5deg) translateY(-6px)}
.gi{position:relative;padding:0;border:0;background:none;cursor:zoom-in;display:grid;gap:6px;justify-items:center;color:var(--ink);font:inherit}
.gi img{display:block;max-width:100%;height:auto}
.gi .cap{font:500 11.5px/1.35 var(--mono);color:var(--muted);text-align:center}
.gi:hover img{outline:2px solid var(--brass);outline-offset:3px}
/* cigarette card album: cream page, cards tucked into photo corners */
.album{background:var(--dial);color:var(--dial-ink);padding:28px;border-radius:6px;box-shadow:inset 0 0 0 1px var(--line)}
.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:28px 22px}
.gi-cards img{width:200px;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.gi-cards{isolation:isolate}
.gi-cards::before,.gi-cards::after{content:"";position:absolute;width:16px;height:16px;z-index:1;pointer-events:none}
.gi-cards::before{top:-4px;left:calc(50% - 104px);border-top:8px solid var(--dial-ink);border-left:8px solid transparent;transform:rotate(-90deg);opacity:.75}
.gi-cards::after{top:-4px;left:calc(50% + 88px);border-top:8px solid var(--dial-ink);border-right:8px solid transparent;transform:rotate(90deg);opacity:.75}
.gi-cards .cap{color:var(--dial-ink);opacity:.7}
/* poster wall */
.poster-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:30px 22px;align-items:start}
.gi-posters img{box-shadow:0 6px 16px rgba(0,0,0,.2)}
/* valve carton shelves: every row stands on a brass plank */
.shelf-wall{display:flex;flex-wrap:wrap;align-items:flex-end;gap:36px 14px;padding:0 12px;
  background:repeating-linear-gradient(to bottom,transparent 0 160px,var(--brass) 160px 166px,transparent 166px 196px)}
.gi-valves{height:160px}
.gi-valves .cap{display:none}
.gi-valves img{height:160px;width:auto;box-shadow:2px 0 4px rgba(0,0,0,.25)}
.gi-valves:hover img{transform:translateY(-6px);outline:none}
.gi-valves img{transition:transform .15s}
/* radio gallery */
.radio-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));column-gap:0;row-gap:30px}
.gi-radios{grid-template-rows:200px auto;align-items:end;padding:0 10px;gap:14px;
  background:linear-gradient(var(--brass),var(--brass)) 0 200px/100% 6px no-repeat}
.gi-radios img{max-height:190px;width:auto;filter:drop-shadow(0 5px 5px rgba(0,0,0,.3));transition:transform .15s}
.gi-radios:hover img{outline:none;transform:translateY(-5px)}
.gi-radios .cap{align-self:start}
.gi-radios .cap{font:700 12px/1.3 var(--head);letter-spacing:.12em;text-transform:uppercase;color:var(--ink)}
.gmore{padding-block:48px 64px;display:grid;gap:10px}
.gmore div{display:flex;flex-wrap:wrap;gap:8px 28px}
.gmore a{background:none;border:0;padding:0;font:400 clamp(20px,2.6vw,26px)/1.3 var(--display);color:var(--ink);cursor:pointer}
.gmore a:hover{color:var(--brass)}
/* lightbox */
.lb{position:fixed;inset:0;z-index:20;background:rgba(10,14,13,.92);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;
  padding:calc(env(safe-area-inset-top,0px) + 48px) max(12px,env(safe-area-inset-right,0px)) calc(env(safe-area-inset-bottom,0px) + 24px) max(12px,env(safe-area-inset-left,0px))}
.lb[hidden]{display:none!important}
.lb figure{margin:0;display:grid;justify-items:center;gap:12px;min-width:0}
.lb img{max-width:100%;max-height:78vh;width:auto;height:auto;image-rendering:auto;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lb figcaption{font:500 13px/1.4 var(--mono);color:#E6E4DA;text-align:center}
.lb-nav,.lb-x{background:none;border:0;color:#E6E4DA;font:300 44px/1 var(--head);cursor:pointer;padding:8px 10px}
.lb-x{position:absolute;top:calc(env(safe-area-inset-top,0px) + 6px);right:max(12px,env(safe-area-inset-right,0px));font-size:36px}
.lb-nav:hover,.lb-x:hover{color:var(--brass-soft)}
@media (max-width:560px){.colls{grid-template-columns:1fr}.album{padding:18px 10px}.fan{height:150px}.fan img{height:130px}.fan-cards img{width:120px}.fan-valves img{height:130px}
  .shelf-wall{background:repeating-linear-gradient(to bottom,transparent 0 160px,var(--brass) 160px 166px,transparent 166px 196px)}}

/* Technical tips */
.tiphead{display:flex;gap:24px;align-items:center;max-width:52rem}
.tiphead .clip-lg{flex:none}
.byline{margin:10px 0 0;font:500 13px/1.5 var(--mono);color:var(--muted)}
.tipgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line);margin-bottom:28px}
.tipcard{display:flex;gap:16px;align-items:center;text-align:left;padding:18px 18px 18px 0;background:none;border:0;border-bottom:1px solid var(--line);cursor:pointer;color:var(--ink);font:inherit;min-width:0}
.tipcard:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}
.tipcard b{display:block;font:700 15px/1.3 var(--head);letter-spacing:.08em;text-transform:uppercase}
.tipcard .t{font-size:15px;color:var(--muted)}
.tipcard:hover b{color:var(--brass)}.tipcard:hover .clip{background:var(--brass)}
.warnwrap{padding-bottom:56px}
.blist{padding-left:20px;display:grid;gap:8px;margin:0 0 1.1em}
.dtable{overflow-x:auto;margin:20px 0 24px}
.dtable table{border-collapse:collapse;font:14px/1.4 var(--mono);font-variant-numeric:tabular-nums;min-width:100%}
.dtable th{font:700 11px/1.3 var(--head);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);text-align:left;padding:8px 12px 8px 0;border-bottom:1.5px solid var(--ink);white-space:nowrap}
.dtable td{padding:7px 12px 7px 0;border-bottom:1px solid var(--line);white-space:nowrap}
.tnote{font-size:13.5px;color:var(--muted);margin:8px 0 0}
/* Cross reference */
.xhead{display:flex;gap:24px;align-items:center;max-width:none}
.xhead > div{max-width:52rem}
.xbar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 73px);z-index:3;background:var(--bg);padding-block:14px;border-block:1px solid var(--line);display:grid;grid-template-columns:auto 1fr auto;gap:10px 18px;align-items:center}
.xsearch{display:flex;align-items:center;gap:12px;min-width:0}
.xsearch input{flex:1;min-width:0;font:500 16px/1.2 var(--mono);padding:11px 14px;border:1.5px solid var(--ink);border-radius:var(--radius);background:var(--surface);color:var(--ink)}
.xsearch input:focus{outline:2px solid var(--brass);outline-offset:1px}
#xcount{font-size:13px;color:var(--muted);white-space:nowrap}
.xjump{display:flex;gap:8px}
.xjump a{font:700 12px/1 var(--head);letter-spacing:.14em;text-transform:uppercase;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:none;color:var(--ink);cursor:pointer}
.xjump a:hover{border-color:var(--brass)}
.xblock{padding-block:36px 8px;scroll-margin-top:150px}
.xtitle{display:flex;gap:16px;align-items:center;margin-bottom:16px}
.xtitle p{margin:4px 0 0;color:var(--muted);max-width:46rem}
.xsec{margin:26px 0}
.xsec h3{font:700 13px/1.3 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin:0 0 10px}
.xwrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.xt{border-collapse:collapse;font:13.5px/1.35 var(--mono);font-variant-numeric:tabular-nums;width:100%}
.xt th{position:sticky;top:0;background:var(--surface);font:700 10.5px/1.3 var(--head);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:1.5px solid var(--ink);white-space:nowrap}
.xt td{padding:7px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.xt tr:last-child td{border-bottom:0}
.xt tbody tr:hover td{background:color-mix(in srgb,var(--brass) 10%,transparent)}
.xt td:nth-last-child(2):not(:first-child){white-space:normal;min-width:220px;font-family:var(--body);font-size:14.5px}
#xt-brit td:nth-child(6){white-space:normal;min-width:240px;font-family:var(--body);font-size:14.5px}
#xt-brit td:nth-child(7){color:var(--brass)}
.xt .nil{color:var(--line)}
.xt mark{background:var(--brass-soft);color:var(--ink);padding:0 2px;border-radius:2px}
.xnone{font-size:17px;color:var(--muted)}
.vid video{display:block;width:100%;max-width:640px;border-radius:var(--radius);background:#000}
.tiprow{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}
.tiprow a{background:none;border:0;padding:0;font:600 15px/1.3 var(--body);color:var(--teal);cursor:pointer;text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.tiprow a:hover{color:var(--brass)}
.addr{font-style:normal;margin:0 0 1.1em;padding:12px 16px;border-left:3px solid var(--brass);background:var(--surface);font-size:16px;line-height:1.6;display:inline-block}
.dl-link{font-weight:600;color:var(--teal);text-decoration:underline;text-decoration-color:var(--brass-soft);text-underline-offset:3px}
.dl-link[aria-disabled="true"]{cursor:default}
.dl-link{display:inline-flex;align-items:center;gap:14px}
.dl-icon{flex:none;width:72px;height:72px;background:var(--teal);-webkit-mask:var(--i) center/contain no-repeat;mask:var(--i) center/contain no-repeat}
.dl-link:hover .dl-icon{background:var(--brass)}
.eucond{padding-block:8px 48px;color:var(--muted);font-size:13px;line-height:1.55;max-width:none}
.eucond h2{font:700 11px/1.3 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 8px;padding-top:20px;border-top:1px solid var(--line)}
.eucond p{margin:0 0 6px;max-width:62rem}
.eucond ol{margin:0;padding-left:18px;display:grid;gap:4px;max-width:62rem}
.flinks{display:flex;flex-wrap:wrap;gap:6px 20px}
.helpgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.helpcard{display:grid;gap:6px;align-content:start;text-align:left;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);font:inherit;text-decoration:none;cursor:pointer;min-width:0}
.helpcard b{font:700 13.5px/1.3 var(--head);letter-spacing:.08em;text-transform:uppercase}
.helpcard span{font-size:14.5px;color:var(--muted)}
.helpcard:hover{border-color:var(--brass)}
.mangroup{margin-bottom:40px}
.mangroup .h2{font-size:22px;margin-bottom:14px}
.books{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.book{display:grid;grid-template-columns:56px 74px 1fr auto;align-items:center;gap:14px;padding:12px 14px 12px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);min-width:0}
.book:nth-child(even){padding-left:14px;border-left:1px solid var(--line)}
.book .yr{color:var(--brass);font-size:14px}
.book b{font:600 16px/1.3 var(--body)}
.book .sz{font-size:12px;color:var(--muted);white-space:nowrap}
.book:hover b{color:var(--brass)}.book:hover .clip-sm{background:var(--brass)}
.linkcols{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding-bottom:64px}
.lsec{margin-bottom:36px;padding-block:0}
#downloads{margin-bottom:56px}
.lsec .h2{font-size:22px;margin-bottom:10px}
.lsec h3{font:700 12px/1.3 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin:22px 0 4px}
.linkrow{display:grid;grid-template-columns:1fr auto;gap:2px 14px;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);text-align:left;background:none;border-left:0;border-right:0;border-top:0;width:100%;font:inherit;cursor:pointer}
.linkrow b{font:600 16px/1.35 var(--body)}
.linkrow .where{font-size:12px;color:var(--brass);white-space:nowrap;align-self:center}
.linkrow .d{grid-column:1/-1;font-size:14.5px;color:var(--muted)}
.linkrow:hover b{color:var(--brass)}
@media (max-width:900px){.books,.linkcols{grid-template-columns:1fr}.book:nth-child(even){padding-left:0;border-left:0}}
@media (max-width:560px){.book{grid-template-columns:40px 1fr auto;gap:4px 12px}.book .clip-sm{width:40px;height:40px;grid-row:span 2}.book .yr{grid-column:2}.book b{grid-column:2}.book .sz{grid-column:3;grid-row:1}}

@media (max-width:900px){.helpgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}

@media (max-width:900px){.xbar{grid-template-columns:1fr;top:calc(env(safe-area-inset-top,0px) + 66px)}}
@media (max-width:560px){.tipgrid{grid-template-columns:1fr}.tipcard:nth-child(even){padding-left:0;border-left:0}.tiphead,.xhead{flex-direction:column;align-items:flex-start}.xbar{position:static}}

@media (max-width:900px){
  .alayout,.ahead-cover{grid-template-columns:1fr}
  .toc{position:static}
  .afig.cover{max-width:260px}
}

@media (max-width:900px){.oleds{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:560px){.oleds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.oled{margin:0;display:grid;gap:10px;align-content:start}
.oled img{display:block;width:100%;max-width:200px;border-radius:6px;background:#000;box-shadow:0 0 0 4px var(--ink)}
.oled figcaption{font-size:14.5px;color:var(--muted)}
.oled figcaption b{display:block;font:700 12px/1.4 var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.feat{list-style:none;padding:0;margin:0;columns:2;column-gap:28px}
.feat li{break-inside:avoid;padding:7px 0 7px 18px;position:relative;font-size:16px}
.feat li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:8px;background:var(--brass);transform:rotate(45deg)}
.trips{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.trip{border:1px solid var(--line);border-radius:var(--radius);padding:14px;background:var(--surface)}
.trip b{display:block;font:500 24px/1 var(--mono);color:var(--needle)}
.trip span{display:block;margin-top:8px;font:600 11px/1.3 var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.tbl{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;font-size:15.5px}
table.spec th{text-align:left;font:700 11px/1.3 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding:11px 16px 11px 0;width:36%;vertical-align:top;border-bottom:1px solid var(--line)}
table.spec td{padding:10px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:14px;font-variant-numeric:tabular-nums}
.box{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:6px}
.box div{border-top:2px solid var(--ink);padding-top:10px;font:600 13px/1.35 var(--head);letter-spacing:.1em;text-transform:uppercase}

@media (max-width:900px){
  .hero,.pd,.split,.libgrid{grid-template-columns:1fr}
  .cat{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .trips{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .cat{grid-template-columns:1fr}
  .prod.lead{grid-column:auto;grid-template-columns:1fr}
  .feat{columns:1}
  .tune,.box{grid-template-columns:1fr}
  nav.main{margin-left:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* Links that replaced in-page buttons */
a.brand,a.coll,a.tipcard,a.helpcard,a.more,.crumb a,.next a,.gmore a,.xjump a{text-decoration:none}
.xjump a{display:inline-block}
.mail a{text-decoration:none;color:inherit}
a.mailto{color:var(--teal);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
a.mailto:hover{color:var(--brass)}