/* IBM Plex (c) IBM Corp., SIL Open Font License 1.1 */
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexSans-400.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/IBMPlexSans-500.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/IBMPlexSans-600.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Condensed';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/IBMPlexSansCondensed-500.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Condensed';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/IBMPlexSansCondensed-600.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Condensed';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/IBMPlexSansCondensed-700.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexMono-400.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/IBMPlexMono-500.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400;font-display:swap;unicode-range:U+03B1,U+03B2,U+03B3,U+03B4,U+03B5,U+03B7,U+03BB,U+03BC,U+03C0,U+03C1,U+03C3,U+03C4,U+03C6,U+03C8,U+03C9,U+03A3,U+0394,U+03A6,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexSans-400-greek.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:500;font-display:swap;unicode-range:U+03B1,U+03B2,U+03B3,U+03B4,U+03B5,U+03B7,U+03BB,U+03BC,U+03C0,U+03C1,U+03C3,U+03C4,U+03C6,U+03C8,U+03C9,U+03A3,U+0394,U+03A6,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexSans-500-greek.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:600;font-display:swap;unicode-range:U+03B1,U+03B2,U+03B3,U+03B4,U+03B5,U+03B7,U+03BB,U+03BC,U+03C0,U+03C1,U+03C3,U+03C4,U+03C6,U+03C8,U+03C9,U+03A3,U+0394,U+03A6,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexSans-600-greek.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Condensed';font-style:normal;font-weight:600;font-display:swap;unicode-range:U+03B1,U+03B2,U+03B3,U+03B4,U+03B5,U+03B7,U+03BB,U+03BC,U+03C0,U+03C1,U+03C3,U+03C4,U+03C6,U+03C8,U+03C9,U+03A3,U+0394,U+03A6,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexSansCondensed-600-greek.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Condensed';font-style:normal;font-weight:700;font-display:swap;unicode-range:U+03B1,U+03B2,U+03B3,U+03B4,U+03B5,U+03B7,U+03BB,U+03BC,U+03C0,U+03C1,U+03C3,U+03C4,U+03C6,U+03C8,U+03C9,U+03A3,U+0394,U+03A6,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexSansCondensed-700-greek.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;unicode-range:U+03C0,U+2264,U+2265,U+221A,U+2192,U+2190,U+2248,U+2260,U+221E,U+2080,U+2081,U+2082,U+2083,U+2084;src:url(fonts/IBMPlexMono-400-greek.woff2) format('woff2')}
/* Studio Spizuoco Ingegneria — site styles. Same tokens as the free tools. */
:root{
  --bg:#F3F5F6; --paper:#FFFFFF; --panel:#F7F9FA; --ink:#16212B; --ink2:#2E3B47; --muted:#5A6774; --faint:#8794A0;
  --line:#D6DDE2; --line2:#E6EBEE; --accent:#014D64; --accent2:#0A6D89; --accent-soft:#DCEBEF; --accent-ink:#FFFFFF;
  --brand:#014D64; --brand-ink:#FFFFFF; --brand-mute:#B9CDD4; --hl:#C2185B; --ok:#1A7A46; --warn:#A8530F;
  --d-pipe:#2E3B47; --d-pipe2:#7C8C99; --d-hot:#C2185B; --d-warm:#E07B2E; --d-cool:#2F8FB0; --d-sup:#014D64; --d-grid:#DCE3E8; --d-fill:#E9EEF1;
  --f-disp:"IBM Plex Sans Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:6px; --w:1180px; --g:clamp(16px,4vw,32px);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E1317; --paper:#141B21; --panel:#172027; --ink:#E2E8EE; --ink2:#C6D0D8; --muted:#93A0AC; --faint:#6B7884;
  --line:#26323B; --line2:#1E2830; --accent:#5FB6CF; --accent2:#7FCBE0; --accent-soft:#13343F; --accent-ink:#04161C;
  --brand:#0B5A73; --brand-ink:#FFFFFF; --brand-mute:#A9C3CC; --hl:#E5508A; --ok:#5FD08A; --warn:#E39A5A;
  --d-pipe:#C6D0D8; --d-pipe2:#6F7F8C; --d-hot:#E5508A; --d-warm:#F09A55; --d-cool:#5FB6CF; --d-sup:#5FB6CF; --d-grid:#1F2A32; --d-fill:#1A242C;
  color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16.5px;line-height:1.62;text-rendering:optimizeLegibility}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--accent2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--f-disp);color:var(--ink);line-height:1.12;letter-spacing:-.005em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(34px,5.2vw,58px);font-weight:700}
h2{font-size:clamp(26px,3.2vw,36px);font-weight:600}
h3{font-size:20px;font-weight:600}
h4{font-size:16px;font-weight:600}
p{margin:0 0 1em;text-wrap:pretty}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin-bottom:.35em}
code,.mono{font-family:var(--f-mono);font-size:.92em}
.skip{position:absolute;left:-999px;top:8px;background:var(--paper);padding:8px 12px;z-index:99}
.skip:focus{left:8px}
.wrap{max-width:var(--w);margin:0 auto;padding-inline:var(--g)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.lead{font-size:clamp(17.5px,1.6vw,20px);color:var(--ink2);line-height:1.55;max-width:62ch}
.muted{color:var(--muted)}

/* ---- header ---- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.logo img{width:40px;height:40px}
.logo b{display:block;font-family:var(--f-disp);font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.05}
.logo small{display:block;font-family:var(--f-mono);font-size:10.5px;color:var(--muted);letter-spacing:.06em}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{color:var(--ink2);text-decoration:none;font-weight:500;font-size:14.5px;padding:8px 10px;border-radius:5px}
.nav a:hover{background:var(--accent-soft);color:var(--ink)}
.nav a[aria-current="page"]{color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent);border-radius:0}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-left:8px}
.lang a{font-family:var(--f-mono);font-size:12px;padding:6px 9px;text-decoration:none;color:var(--muted);border-right:1px solid var(--line)}
.lang a:last-child{border-right:0}
.lang a[aria-current="true"]{background:var(--accent);color:var(--accent-ink)}
.menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:var(--paper);border-radius:var(--r);padding:8px 11px;font:inherit;color:var(--ink);cursor:pointer}
@media (max-width:1020px){
  .menu-btn{display:inline-flex;align-items:center;gap:8px}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line);padding:10px var(--g) 18px;gap:2px;box-shadow:0 18px 30px rgba(0,0,0,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;font-size:16px}
  .nav .btn{margin-top:8px;justify-content:center}
  .lang{margin:10px 0 0;align-self:flex-start}
}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;line-height:1.2;padding:12px 18px;border-radius:var(--r);border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);text-decoration:none;cursor:pointer;font-family:var(--f-body);white-space:nowrap}
.btn:hover{background:var(--accent2);border-color:var(--accent2);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.ghost:hover{background:var(--accent-soft);color:var(--accent)}
.btn.sm{padding:8px 13px;font-size:14px}
.nav .btn{color:var(--accent-ink);margin-left:8px;padding:9px 14px;box-shadow:none;border-radius:var(--r)}
.nav .btn:hover{background:var(--accent2);color:var(--accent-ink)}
.btn svg{flex:none}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---- hero ---- */
.hero{padding:clamp(40px,7vw,88px) 0 clamp(36px,5vw,64px);border-bottom:1px solid var(--line);background:
  linear-gradient(var(--d-grid) 1px,transparent 1px) 0 0/28px 28px,linear-gradient(90deg,var(--d-grid) 1px,transparent 1px) 0 0/28px 28px,var(--bg);
  background-blend-mode:normal}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,56px);align-items:center}
.hero h1 span{color:var(--accent)}
.hero-art{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px;box-shadow:0 30px 60px -30px rgba(1,77,100,.35)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}

/* title block — the drawing-sheet signature */
.tblock{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--ink2);background:var(--paper);margin-top:34px}
.tblock div{padding:12px 14px;border-right:1px solid var(--line)}
.tblock div:last-child{border-right:0}
.tblock b{display:block;font-family:var(--f-disp);font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--ink);line-height:1.05}
.tblock span{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-top:4px}
@media (max-width:640px){.tblock{grid-template-columns:1fr 1fr}.tblock div:nth-child(2){border-right:0}.tblock div:nth-child(-n+2){border-bottom:1px solid var(--line)}}

/* ---- sections ---- */
.section{padding:clamp(48px,7vw,92px) 0}
.section.alt{background:var(--paper);border-block:1px solid var(--line)}
.shead{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px 48px;align-items:end;margin-bottom:36px}
.shead p{color:var(--ink2);margin:0}
@media (max-width:820px){.shead{grid-template-columns:1fr}}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:980px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:22px 22px 20px;display:flex;flex-direction:column;gap:6px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent)}
.card .ico{width:64px;height:64px;margin-bottom:8px;color:var(--accent)}
.card h3{margin:0 0 4px}
.card h3 a{color:inherit;text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0}
.card p{color:var(--ink2);font-size:15.5px;margin:0}
.card .num{font-family:var(--f-mono);font-size:11.5px;color:var(--faint);letter-spacing:.08em}
.card .more{margin-top:auto;padding-top:12px;font-weight:600;font-size:14.5px;color:var(--accent)}
.card ul{font-size:15px;color:var(--ink2);margin:6px 0 0}

/* client / codes strip */
.strip{border-block:1px solid var(--line);background:var(--paper);padding:22px 0}
.strip .wrap{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 22px}
.strip .lbl{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-right:6px}
.strip .nm{font-family:var(--f-disp);font-weight:600;font-size:17px;color:var(--ink2);white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{font-family:var(--f-mono);font-size:12.5px;border:1px solid var(--line);background:var(--paper);border-radius:4px;padding:3px 8px;color:var(--ink2);white-space:nowrap}

/* split feature */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,5vw,64px);align-items:center}
.split.rev>:first-child{order:2}
@media (max-width:860px){.split{grid-template-columns:1fr}.split.rev>:first-child{order:0}}
.figure{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px;margin:0}
.figure figcaption{font-family:var(--f-mono);font-size:12px;color:var(--muted);padding:10px 4px 2px;border-top:1px solid var(--line2);margin-top:8px}

/* checklist / steps */
.check{list-style:none;padding:0}
.check li{position:relative;padding-left:30px;margin-bottom:10px}
.check li::before{content:"";position:absolute;left:0;top:.42em;width:16px;height:9px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:0;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:8px;background:var(--paper)}
.steps li{counter-increment:s;padding:22px 20px;border-right:1px solid var(--line);margin:0}
.steps li:last-child{border-right:0}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--f-mono);font-size:13px;color:var(--accent);margin-bottom:10px}
.steps b{display:block;font-family:var(--f-disp);font-size:18px;margin-bottom:4px}
.steps span{font-size:15px;color:var(--ink2)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}.steps li:nth-child(2){border-right:0}.steps li:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:560px){.steps{grid-template-columns:1fr}.steps li{border-right:0;border-bottom:1px solid var(--line)}.steps li:last-child{border-bottom:0}}

/* CTA band */
.cta{background:var(--brand);color:var(--brand-ink);border-radius:12px;padding:clamp(28px,5vw,52px);display:grid;grid-template-columns:minmax(0,1.4fr) auto;gap:24px;align-items:center;position:relative;overflow:hidden}
.cta h2{color:var(--brand-ink);margin-bottom:.3em}
.cta p{color:var(--brand-mute);margin:0;max-width:60ch}
.cta .btn{background:#fff;border-color:#fff;color:#014D64}
.cta .btn:hover{background:#E7F2F5;color:#014D64}
.cta .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta .btn.ghost:hover{background:rgba(255,255,255,.1)}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border:1px dashed rgba(255,255,255,.18);border-radius:50%}
@media (max-width:760px){.cta{grid-template-columns:1fr}}

/* page head + breadcrumb */
.phead{padding:clamp(34px,5vw,64px) 0 clamp(26px,4vw,44px);border-bottom:1px solid var(--line);background:linear-gradient(var(--d-grid) 1px,transparent 1px) 0 0/28px 28px,linear-gradient(90deg,var(--d-grid) 1px,transparent 1px) 0 0/28px 28px,var(--bg)}
.phead .wrap.withart{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:40px;align-items:center}
@media (max-width:860px){.phead .wrap.withart{grid-template-columns:1fr}.phead .pa{max-width:320px}}
.crumbs{font-family:var(--f-mono);font-size:12px;color:var(--muted);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:6px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span[aria-hidden]{color:var(--faint)}

/* prose */
.prose{max-width:72ch}
.prose h2{font-size:clamp(23px,2.4vw,29px);margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose p,.prose li{color:var(--ink2)}
.prose .figure{margin:28px 0}
.prose blockquote{margin:24px 0;padding:14px 18px;border-left:3px solid var(--accent);background:var(--paper);color:var(--ink2)}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(28px,5vw,64px);align-items:start}
.aside{position:sticky;top:96px;display:grid;gap:14px}
.aside .box{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:18px}
.aside .box h4{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:500;margin-bottom:10px}
.aside .box ul{list-style:none;padding:0;margin:0;font-size:15px}
.aside .box li{margin:0;border-top:1px solid var(--line2);padding:7px 0}
.aside .box li:first-child{border-top:0}
.aside .box a{text-decoration:none}
@media (max-width:960px){.layout{grid-template-columns:1fr}.aside{position:static}}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:15px;margin:0}
.kv dt{font-family:var(--f-mono);font-size:12px;color:var(--muted);padding-top:3px}
.kv dd{margin:0;color:var(--ink2)}
.meta{font-family:var(--f-mono);font-size:12.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 16px}

/* references table */
.rtools{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}
.rtools input{flex:1 1 240px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);color:var(--ink);padding:10px 12px;font:inherit;font-size:15px}
.filt{display:flex;flex-wrap:wrap;gap:6px}
.filt button{border:1px solid var(--line);background:var(--paper);color:var(--ink2);border-radius:999px;padding:7px 13px;font:inherit;font-size:14px;cursor:pointer}
.filt button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.rtable{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:15px}
.rtable th{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--panel)}
.rtable td{padding:12px 14px;border-bottom:1px solid var(--line2);vertical-align:top;color:var(--ink2)}
.rtable td:first-child{font-weight:600;color:var(--ink)}
.rtable tr:last-child td{border-bottom:0}
.rtable .cty{font-family:var(--f-mono);font-size:13px;white-space:nowrap}
.rtable .cat{display:inline-block;font-family:var(--f-mono);font-size:11px;border:1px solid var(--line);border-radius:3px;padding:1px 6px;color:var(--accent);margin-top:4px;white-space:nowrap}
@media (max-width:760px){
  .rtable thead{display:none}
  .rtable tr{display:block;border-bottom:1px solid var(--line);padding:10px 0}
  .rtable td{display:block;border:0;padding:3px 14px}
}
.note{font-size:13.5px;color:var(--muted)}

/* tools */
.tool{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:clamp(18px,3vw,30px);margin-bottom:22px}
.tool img{border:1px solid var(--line);border-radius:6px}
@media (max-width:860px){.tool{grid-template-columns:1fr}}

/* form */
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:clamp(18px,3vw,30px)}
.form .full{grid-column:1/-1}
.form label{display:block;font-weight:600;font-size:14px;margin-bottom:5px}
.form input,.form select,.form textarea{width:100%;border:1px solid var(--line);border-radius:var(--r);background:var(--bg);color:var(--ink);padding:10px 12px;font:inherit;font-size:15.5px}
.form textarea{min-height:130px;resize:vertical}
.form .hint{font-size:13px;color:var(--muted);margin-top:4px}
.form .row-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
@media (max-width:640px){.form{grid-template-columns:1fr}}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.contact-list li{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;margin:0}
.contact-list svg{width:20px;height:20px;color:var(--accent);margin-top:3px}

/* FAQ */
.faq details{border-top:1px solid var(--line);padding:16px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-family:var(--f-disp);font-weight:600;font-size:19px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";font-family:var(--f-mono);color:var(--accent)}
.faq details[open] summary::after{content:"−"}
.faq summary::-webkit-details-marker{display:none}
.faq p{margin:10px 0 0;color:var(--ink2);max-width:75ch}

/* footer */
.site-footer{background:var(--brand);color:var(--brand-ink);margin-top:0;padding:56px 0 28px}
.site-footer a{color:var(--brand-ink)}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.fgrid h4{color:var(--brand-mute);font-family:var(--f-mono);font-size:11.5px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}
.fgrid ul{list-style:none;padding:0;margin:0;font-size:15px}
.fgrid li{margin-bottom:7px}
.fgrid a{text-decoration:none}
.fgrid a:hover{text-decoration:underline}
.flogo{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.flogo img{width:48px;height:48px}
.flogo b{font-family:var(--f-disp);font-size:18px;letter-spacing:.03em}
.fsmall{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.2);font-size:13px;color:var(--brand-mute);display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}
@media (max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.fgrid{grid-template-columns:1fr}}

/* illustrations */
.ill{color:var(--d-pipe)}
.ill .p{fill:none;stroke:var(--d-pipe);stroke-width:7;stroke-linecap:round;stroke-linejoin:round}
.ill .pi{fill:none;stroke:var(--paper);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;opacity:.55}
.ill .t{fill:none;stroke:var(--d-pipe);stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.ill .th{fill:none;stroke:var(--d-pipe2);stroke-width:1;stroke-dasharray:3 3}
.ill .s{fill:var(--d-sup);stroke:none}
.ill .so{fill:none;stroke:var(--d-sup);stroke-width:1.6;stroke-linejoin:round}
.ill .f{fill:var(--d-fill);stroke:var(--d-pipe);stroke-width:1.4;stroke-linejoin:round}
.ill .hot{stroke:var(--d-hot)}.ill .warm{stroke:var(--d-warm)}.ill .cool{stroke:var(--d-cool)}
.ill text{font-family:var(--f-mono);font-size:11px;fill:var(--muted)}
.ill .tl{font-family:var(--f-mono);font-size:10px;fill:var(--d-sup);letter-spacing:.04em}
.ill .node{fill:var(--paper);stroke:var(--d-sup);stroke-width:1.3}
.ill .dim{stroke:var(--d-pipe2);stroke-width:.9;fill:none}
.ill .acc{fill:var(--d-sup)}
.ill .grid{stroke:var(--d-grid);stroke-width:1}
@media (prefers-reduced-motion:no-preference){
  .ill .flow{stroke-dasharray:4 10;animation:flow 2.2s linear infinite}
  @keyframes flow{to{stroke-dashoffset:-28}}
}
.nav .btn[aria-current="page"]{color:var(--accent-ink);box-shadow:none;border-radius:var(--r)}
.gal{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:26px 0}
.gal.g4h{grid-template-columns:repeat(4,minmax(0,1fr));margin:0}
.figure.wk{padding:8px;margin:0;display:flex;flex-direction:column}
.figure.wk a{display:flex;align-items:center;justify-content:center;flex:1;background:#fff;border-radius:6px;overflow:hidden;min-height:0}
.figure.wk img{width:100%;height:auto;max-height:340px;object-fit:contain}
.gal.g4h .figure.wk img{height:220px;object-fit:contain}
.figure.wk figcaption{font-family:var(--f-body);font-size:13px;line-height:1.4}
@media (max-width:980px){.gal.g4h{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.gal,.gal.g4h{grid-template-columns:1fr}}
.portrait{width:100%;max-width:340px;height:auto;border-radius:10px;border:1px solid var(--line);box-shadow:0 24px 50px -28px rgba(1,77,100,.45);margin-left:auto}
.who{display:inline-flex;align-items:center;gap:14px;margin:4px 0 22px;padding:10px 16px 10px 10px;border:1px solid var(--line);border-radius:999px;background:var(--paper);text-decoration:none;color:var(--ink)}
.who:hover{border-color:var(--accent);color:var(--ink)}
.who img{width:56px;height:56px;border-radius:50%;object-fit:cover}
.who b{display:block;font-family:var(--f-disp);font-size:17px}
.who small{display:block;font-size:13.5px;color:var(--muted)}
@media (max-width:860px){.portrait{margin:0;max-width:260px}}
.prose .figure.wk{margin:28px 0}
.prose .gal .figure.wk{margin:0}
.prose .figure.wk img{max-height:520px}
.prose .facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 20px;padding:18px 20px;border:1px solid var(--line);border-radius:10px;background:var(--paper);margin:26px 0;font-size:15.5px}
.prose .facts dt{font-family:var(--f-mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);padding-top:4px}
.prose .facts dd{margin:0;color:var(--ink)}
.prose .takeaway{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;background:var(--paper);padding:16px 20px;margin:28px 0}
.prose .takeaway h3{margin:0 0 8px;font-size:17px}
.prose .takeaway ul{margin:0;padding-left:20px}
.prose .faq{margin-top:12px}
@media (max-width:560px){.prose .facts{grid-template-columns:1fr;gap:2px}.prose .facts dd{margin-bottom:8px}}