/* ======================================================================
   DDA CONSTRUCTION — design tokens
   Palette from the trade: clear-anodized aluminum (ground), dark-bronze
   anodized (hero + footer), and the green on the edge of float glass (accent).
   ====================================================================== */
:root{
  --bg:#EDEFED; --surface:#F8F9F7; --surface-2:#E3E7E4;
  --ink:#191C1A; --muted:#58605B; --line:#C6CDC8;
  --accent:#2C6B5C; --accent-ink:#FFFFFF; --accent-soft:#D5E6DF;
  --bronze:#221D19; --bronze-2:#2E2722; --on-bronze:#ECE6DF; --on-bronze-muted:#B3A99F;
  --glass:#A7CEC0; --focus:#2C6B5C;
  --display:"Archivo","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --radius:3px; --header:64px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#121514; --surface:#1A1E1C; --surface-2:#222825; --ink:#E4E9E6; --muted:#9BA59F;
    --line:#2F3632; --accent:#86BFAE; --accent-ink:#0F1512; --accent-soft:#1F3530;
    --bronze:#171311; --bronze-2:#221C18; --focus:#86BFAE;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#121514; --surface:#1A1E1C; --surface-2:#222825; --ink:#E4E9E6; --muted:#9BA59F;
  --line:#2F3632; --accent:#86BFAE; --accent-ink:#0F1512; --accent-soft:#1F3530;
  --bronze:#171311; --bronze-2:#221C18; --focus:#86BFAE;
}

/* ============ BASE ============ */
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16.5px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg,canvas{max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--display);line-height:1.05;margin:0;text-wrap:balance;font-variation-settings:"wdth" 108}
p{margin:0}
.wrap{max-width:1180px;margin-inline:auto;padding-inline:20px}
.tag{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sheet{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.sheet b{font-weight:500;color:var(--accent);border:1px solid currentColor;padding:1px 6px;border-radius:2px}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--body);font-weight:600;font-size:15px;padding:13px 20px;border-radius:var(--radius);border:1px solid transparent;text-decoration:none;cursor:pointer;transition:transform .15s ease,background .15s ease}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ghost{border-color:currentColor;background:transparent;color:inherit}
.btn-ghost:hover{background:rgba(127,127,127,.12)}
.btn svg{width:16px;height:16px}

/* scroll progress */
.progress{position:fixed;left:0;top:env(safe-area-inset-top,0px);height:2px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--accent);z-index:60;pointer-events:none}

/* ============ HEADER ============ */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:var(--header)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{font-family:var(--display);font-weight:800;font-size:26px;letter-spacing:-.01em;font-variation-settings:"wdth" 125;line-height:1}
.brand-sub{display:flex;flex-direction:column;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);line-height:1.35;border-left:1px solid var(--line);padding-left:12px}
.nav{display:flex;align-items:center;gap:2px}
.nav > a,.dd > a{text-decoration:none;font-size:14.5px;font-weight:500;padding:8px 12px;border-radius:var(--radius);color:var(--ink);display:inline-block}
.nav > a:hover,.dd > a:hover{background:var(--surface-2)}
.nav a[aria-current="page"]{color:var(--accent)}
.nav .btn{margin-left:8px;padding:10px 16px;font-size:14px;color:var(--accent-ink)}
.dd{position:relative}
.dd > a::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-left:8px;vertical-align:3px}
.dd-menu{position:absolute;left:0;top:100%;min-width:560px;background:var(--surface);border:1px solid var(--line);box-shadow:0 18px 40px -18px rgba(0,0,0,.35);padding:10px;display:none;grid-template-columns:1fr 1fr;gap:2px}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:grid}
.dd-menu a{display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:center;text-decoration:none;padding:9px 10px;border-radius:var(--radius)}
.dd-menu a:hover{background:var(--accent-soft)}
.dd-menu svg{width:40px;height:40px}
.dd-menu b{display:block;font-weight:600;font-size:14.5px}
.dd-menu small{display:block;color:var(--muted);font-size:12.5px;line-height:1.35}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--radius);padding:8px 12px;font:500 14px var(--body);cursor:pointer}
@media (max-width:980px){
  .menu-btn{display:inline-flex}
  .nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 20px 18px;display:none;max-height:calc(100svh - var(--header));overflow:auto}
  .nav.open{display:flex}
  .dd-menu{position:static;display:grid;min-width:0;grid-template-columns:1fr;border:0;box-shadow:none;padding:0 0 6px 12px;background:transparent}
  .dd-menu svg{width:30px;height:30px}
  .dd-menu small{display:none}
  .dd-menu a{grid-template-columns:30px 1fr;padding:6px 8px}
  .nav .btn{margin:10px 0 0;justify-content:center}
  .brand-sub{display:none}
}

/* ============ 3D HERO (scroll-driven) ============ */
.stage{position:relative;height:175vh;background:var(--bronze);color:var(--on-bronze)}
.stage-pin{position:sticky;top:calc(env(safe-area-inset-top,0px) + var(--header));height:calc(100svh - var(--header));overflow:hidden}
.stage-pin::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(236,230,223,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(236,230,223,.04) 1px,transparent 1px);background-size:32px 32px;pointer-events:none;z-index:1}
.stage-grid{position:relative;z-index:2;height:100%;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:24px;align-items:center}
.stage-copy{display:flex;flex-direction:column;gap:20px;padding-block:24px}
.stage .sheet{color:var(--on-bronze-muted)}
.stage .sheet b{color:var(--glass)}
.stage h1{font-size:clamp(38px,5.6vw,76px);font-weight:750;letter-spacing:-.02em;font-variation-settings:"wdth" 112}
.stage h1 em{font-style:normal;color:var(--glass)}
.stage .lede{max-width:52ch;font-size:17.5px;opacity:.88}
.stage .ctas{display:flex;flex-wrap:wrap;gap:12px}
.stage .btn-primary{background:var(--glass);color:#111815}
.stage .btn-ghost{color:var(--on-bronze)}
.steps3d{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:0;max-width:460px;border-top:1px solid rgba(236,230,223,.16)}
.steps3d li{display:grid;grid-template-columns:44px 1fr;gap:4px 10px;padding:10px 0;border-bottom:1px solid rgba(236,230,223,.16);opacity:.42;transition:opacity .3s ease}
.steps3d li.on{opacity:1}
.steps3d .k{font-family:var(--mono);font-size:11.5px;color:var(--glass);padding-top:3px;grid-row:span 2}
.steps3d b{font-family:var(--display);font-weight:650;font-size:17px;font-variation-settings:"wdth" 100}
.steps3d span:last-child{font-size:14px;color:var(--on-bronze-muted)}
.door3d{position:relative;height:100%;min-height:320px}
.door3d canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block}
.door3d .fallback{position:absolute;inset:8% 6%;display:flex;align-items:center;justify-content:center}
.scroll-hint{position:absolute;z-index:3;right:20px;bottom:18px;display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--on-bronze-muted)}
.scroll-hint .bar{width:120px;height:2px;background:rgba(236,230,223,.2);position:relative;overflow:hidden}
.scroll-hint .bar i{position:absolute;inset:0;background:var(--glass);transform-origin:0 50%;transform:scaleX(0)}
.dim-tag{position:absolute;z-index:3;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--glass);pointer-events:none;white-space:nowrap;transform:translate(-50%,-50%);transition:opacity .25s ease}
@media (max-width:900px){
  .stage{height:160vh}
  .stage-grid{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);gap:0;align-items:stretch}
  .stage-copy{padding-block:18px 0;gap:12px}
  .stage h1{font-size:clamp(32px,9vw,46px)}
  .stage .lede{font-size:15.5px}
  .steps3d{display:none}
  .stage .btn{padding:11px 16px;font-size:14px}
  .scroll-hint{left:20px;right:auto}
}
@media (max-width:900px) and (max-height:700px){.stage .lede{display:none}}

/* Pivot elevation (fallback + reuse) */
.elev{position:relative;width:100%;max-width:400px;aspect-ratio:420/520}
.elev svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.elev .d{stroke:var(--on-bronze-muted);stroke-width:1;fill:none}
.elev .t{fill:var(--on-bronze-muted);font-family:var(--mono);font-size:10.5px;letter-spacing:.08em}
.elev .frame{stroke:var(--on-bronze);stroke-width:2.2;fill:none}
.elev .axis{stroke:var(--glass);stroke-width:1.2;stroke-dasharray:14 4 2 4;fill:none}
.elev .leaf{fill:rgba(143,196,179,.18);stroke:#CFC7BE;stroke-width:2}

/* ============ TITLE BLOCK STRIP ============ */
.titleblock{border-bottom:1px solid var(--line);background:var(--surface)}
.titleblock .wrap{display:grid;grid-template-columns:repeat(5,1fr)}
.titleblock div{padding:16px 16px 16px 0;border-right:1px solid var(--line)}
.titleblock div + div{padding-left:16px}
.titleblock div:last-child{border-right:0}
.titleblock .tag{display:block}
.titleblock strong{display:block;font-family:var(--display);font-size:17px;font-weight:650;margin-top:2px;font-variation-settings:"wdth" 100}
@media (max-width:820px){.titleblock .wrap{grid-template-columns:1fr 1fr}.titleblock div{border-right:0;border-bottom:1px solid var(--line);padding-left:0!important}.titleblock div:last-child{border-bottom:0}}

/* ============ SECTIONS ============ */
.sec{padding-block:84px}
.sec.tight{padding-top:0}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:end;margin-bottom:44px}
.sec-head h2{font-size:clamp(30px,4.2vw,50px);font-weight:720;letter-spacing:-.015em;margin-top:14px}
.sec-head p{color:var(--muted);max-width:52ch;font-size:17px}
@media (max-width:820px){.sec{padding-block:60px}.sec.tight{padding-top:0}.sec-head{grid-template-columns:1fr;gap:14px}}

/* ============ SCROLL MOTION (driven by JS; everything is visible at rest) ============ */
.m-on{will-change:transform}
.top{transition:box-shadow .25s ease}
.top.scrolled{box-shadow:0 10px 30px -22px rgba(0,0,0,.55)}

/* giant ticker bands that slide sideways with the scroll */
.ticker{overflow:hidden;border-block:1px solid var(--line);background:var(--bg);padding-block:18px}
.ticker-track{display:flex;width:max-content;gap:0;white-space:nowrap}
.ticker span{font-family:var(--display);font-weight:800;font-size:clamp(46px,8.5vw,120px);line-height:1;letter-spacing:-.02em;font-variation-settings:"wdth" 118;padding-right:.35em;color:transparent;-webkit-text-stroke:1.2px var(--muted)}
.ticker span.f{color:var(--ink);-webkit-text-stroke:0}
.ticker span.a{color:var(--accent);-webkit-text-stroke:0}
.ticker.dark{background:var(--bronze);border-color:transparent}
.ticker.dark span{-webkit-text-stroke-color:var(--on-bronze-muted)}
.ticker.dark span.f{color:var(--on-bronze)}
.ticker.dark span.a{color:var(--glass)}

/* process line fills as you scroll */
.steps{position:relative}
.steps::before{content:"";position:absolute;left:0;top:0;height:2px;width:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(var(--fill,1));z-index:1}

/* footer wordmark */
.foot-mark{overflow:hidden;line-height:.8;padding-top:10px}
.foot-mark div{font-family:var(--display);font-weight:800;font-size:clamp(90px,24vw,330px);letter-spacing:-.04em;font-variation-settings:"wdth" 125;color:transparent;-webkit-text-stroke:1px rgba(236,230,223,.22);white-space:nowrap;padding-inline:20px;text-align:center}

/* Systems grid */
.systems{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.sys{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 22px 24px;background:var(--surface);display:flex;flex-direction:column;gap:12px;transition:background .2s ease;text-decoration:none}
.sys:hover{background:var(--accent-soft)}
.sys:hover .go{transform:translateX(4px)}
.sys svg{width:66px;height:66px;color:var(--ink)}
.sys h3{font-size:21px;font-weight:680}
.sys p{color:var(--muted);font-size:15px}
.sys .spec{margin-top:auto;padding-top:10px;border-top:1px dashed var(--line);font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;display:flex;justify-content:space-between;gap:8px}
.sys .go{color:var(--accent);transition:transform .2s ease}
@media (max-width:1000px){.systems{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.systems{grid-template-columns:1fr}}

/* Finder tool */
.finder{display:grid;grid-template-columns:.9fr 1.1fr;border:1px solid var(--line);background:var(--surface)}
.finder form{padding:30px;border-right:1px solid var(--line);display:grid;gap:22px}
.field label,.field legend{display:flex;justify-content:space-between;font-weight:600;font-size:14.5px;margin-bottom:8px}
.field output{font-family:var(--mono);font-weight:500;color:var(--accent)}
.field input[type=range]{width:100%;accent-color:var(--accent)}
fieldset.field{border:0;padding:0;margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips label{margin:0;font-weight:500;font-size:14px;padding:8px 13px;border:1px solid var(--line);border-radius:999px;cursor:pointer;background:var(--bg)}
.chips input:checked + label{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chips input:focus-visible + label{outline:2px solid var(--focus);outline-offset:2px}
.result{padding:30px;display:flex;flex-direction:column;gap:14px}
.result h3{font-size:34px;font-weight:740}
.result ul{margin:0;padding-left:18px;display:grid;gap:6px}
.result .note{font-size:14px;color:var(--muted);border-left:2px solid var(--accent);padding-left:12px}
.result .spec-line{font-family:var(--mono);font-size:12px;letter-spacing:.05em;color:var(--accent);text-transform:uppercase}
.result .row{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:860px){.finder{grid-template-columns:1fr}.finder form{border-right:0;border-bottom:1px solid var(--line)}}

/* Imported band */
.imported{background:var(--surface-2)}
.checks{display:grid;grid-template-columns:repeat(3,1fr);gap:34px 40px}
.check{display:grid;grid-template-columns:auto 1fr;gap:4px 14px}
.check .k{grid-row:span 2;font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:4px}
.check h3{font-size:19px;font-weight:660;font-variation-settings:"wdth" 100}
.check p{color:var(--muted);font-size:15px}
@media (max-width:900px){.checks{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.checks{grid-template-columns:1fr}}

/* Process */
.steps{display:grid;grid-template-columns:repeat(5,1fr)}
.step{padding:22px 20px 0 0;border-top:2px solid var(--ink)}
.step + .step{padding-left:20px;border-left:1px solid var(--line)}
.step .n{font-family:var(--mono);font-size:12px;color:var(--accent)}
.step h3{font-size:20px;font-weight:660;margin:8px 0;font-variation-settings:"wdth" 100}
.step p{color:var(--muted);font-size:15px}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;gap:28px}.step + .step{border-left:0;padding-left:0}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* Area */
.area{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);background:var(--surface)}
.area > div{padding:26px;border-right:1px solid var(--line)}
.area > div:last-child{border-right:0}
.area h3{font-size:22px;font-weight:680;margin-bottom:12px}
.pills{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.pills li{font-size:14px;padding:4px 10px;background:var(--bg);border:1px solid var(--line);border-radius:2px}
@media (max-width:820px){.area{grid-template-columns:1fr}.area > div{border-right:0;border-bottom:1px solid var(--line)}.area > div:last-child{border-bottom:0}}

/* Blog cards */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.post-card{display:flex;flex-direction:column;gap:12px;text-decoration:none;padding-top:18px;border-top:1px solid var(--ink)}
.post-card h3{font-size:22px;font-weight:660;line-height:1.15;font-variation-settings:"wdth" 100}
.post-card:hover h3{color:var(--accent)}
.post-card p{color:var(--muted);font-size:15px}
.post-card .more{font-weight:600;font-size:14px;color:var(--accent);margin-top:auto}
@media (max-width:900px){.posts{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.posts{grid-template-columns:1fr}}

/* CTA band */
.cta-band{background:var(--bronze);color:var(--on-bronze)}
.cta-band .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center;padding-block:56px}
.cta-band h2{font-size:clamp(28px,3.6vw,44px);font-weight:720;max-width:20ch}
.cta-band .btn-primary{background:var(--glass);color:#111815}
.cta-band .btn-ghost{color:var(--on-bronze)}
.cta-band .ctas{display:flex;flex-wrap:wrap;gap:12px}

/* Page head (inner routes) */
.page-head{border-bottom:1px solid var(--line);background:var(--surface)}
.page-head .wrap{padding-block:52px 44px}
.page-head h1{font-size:clamp(36px,5.4vw,66px);font-weight:750;letter-spacing:-.02em;margin-top:16px;max-width:18ch}
.page-head p{margin-top:16px;color:var(--muted);max-width:60ch;font-size:18px}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted)}
.crumbs a{text-decoration:none;color:var(--accent)}

/* System subpage */
.sys-head .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.sys-head .draw-box{background:var(--bg);border:1px solid var(--line);padding:18px;position:relative}
.sys-head .draw-box .tag{position:absolute;left:14px;bottom:10px}
.sys-head .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.draw{width:100%;height:auto;display:block;color:var(--ink)}
.draw .s{fill:none;stroke:currentColor;stroke-width:1.6}
.draw .p{fill:color-mix(in srgb,var(--accent) 10%,transparent);stroke:currentColor;stroke-width:1.2}
.draw .a{fill:none;stroke:var(--accent);stroke-width:1.4}
.draw .h{fill:none;stroke:var(--accent);stroke-width:1.1;stroke-dasharray:6 4}
.draw .cl{fill:none;stroke:var(--accent);stroke-width:1.2;stroke-dasharray:14 4 2 4}
.draw .dm{fill:none;stroke:var(--muted);stroke-width:.9}
.draw text{fill:var(--muted);font-family:var(--mono);font-size:10.5px;letter-spacing:.06em}
.draw .fl{stroke:var(--ink);stroke-width:1.4}
@media (prefers-reduced-motion:no-preference){
  .draw .s,.draw .p,.draw .a{stroke-dasharray:2200;stroke-dashoffset:2200;animation:drawon 1.6s cubic-bezier(.5,0,.2,1) .15s forwards}
  .draw .p{animation-delay:.45s}
  .draw .a{animation-delay:.9s}
  @keyframes drawon{to{stroke-dashoffset:0}}
}
@media (max-width:860px){.sys-head .wrap{grid-template-columns:1fr}}
.sys-body{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:start}
@media (max-width:900px){.sys-body{grid-template-columns:1fr;gap:36px}}
.spec-table{width:100%;border-collapse:collapse;font-size:15px}
.spec-table th,.spec-table td{text-align:left;padding:11px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{font-family:var(--mono);font-weight:500;font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);width:40%;padding-right:14px}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:0;counter-reset:c}
.checklist li{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:14px 0;border-top:1px solid var(--line);counter-increment:c}
.checklist li::before{content:counter(c,decimal-leading-zero);font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:3px}
.checklist b{display:block;font-weight:600}
.checklist span{color:var(--muted);font-size:15px}
.faq details{border-top:1px solid var(--line);padding:4px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:14px 0;font-family:var(--display);font-weight:650;font-size:19px;font-variation-settings:"wdth" 100}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--accent);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 16px;color:var(--muted);max-width:66ch}
.h-sub{font-size:28px;font-weight:700;margin:52px 0 18px}
.h-sub:first-child{margin-top:0}
.care{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;background:var(--accent-soft);border-left:3px solid var(--accent);padding:18px 20px;margin-top:22px}
.care p{font-size:15.5px}
@media (max-width:560px){.care{grid-template-columns:1fr}}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.related a{display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:center;padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);text-decoration:none}
.related a:hover{background:var(--accent-soft)}
.related svg{width:48px;height:48px}
.related b{font-family:var(--display);font-size:18px;font-weight:650;font-variation-settings:"wdth" 100}
@media (max-width:760px){.related{grid-template-columns:1fr}}

/* Services overview */
.fixlist{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.fixlist div{padding:18px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.fixlist b{display:block;font-weight:600}
.fixlist span{font-size:14.5px;color:var(--muted)}
@media (max-width:860px){.fixlist{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.fixlist{grid-template-columns:1fr}}
.brands{display:flex;flex-wrap:wrap;gap:8px 10px;margin-top:18px}
.brands span{font-family:var(--display);font-weight:600;font-size:16px;padding:6px 12px;border:1px solid var(--line);border-radius:2px;background:var(--surface);font-variation-settings:"wdth" 95}

/* Prose */
.prose{max-width:68ch}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:28px;font-weight:700;margin-top:1.8em}
.prose h3{font-size:21px;font-weight:660;margin-top:1.5em;font-variation-settings:"wdth" 100}
.prose ul,.prose ol{padding-left:20px}
.prose li + li{margin-top:.4em}
.prose .callout,.callout{background:var(--accent-soft);border-left:3px solid var(--accent);padding:16px 18px;font-size:15.5px}
.two-col{display:grid;grid-template-columns:1.3fr .7fr;gap:56px;align-items:start}
.aside-card{position:sticky;top:calc(var(--header) + 24px);background:var(--surface);border:1px solid var(--line);padding:24px;display:grid;gap:14px}
.aside-card h3{font-size:20px;font-weight:680}
.aside-card p{color:var(--muted);font-size:15px}
.aside-card dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14.5px}
.aside-card dt{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.aside-card dd{margin:0}
@media (max-width:900px){.two-col{grid-template-columns:1fr;gap:36px}.aside-card{position:static}}
.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 32px;margin-top:10px}
.principles div{border-top:1px solid var(--line);padding-top:14px}
.principles b{display:block;font-family:var(--display);font-size:19px;font-weight:660;margin-bottom:4px;font-variation-settings:"wdth" 100}
.principles span{color:var(--muted);font-size:15px}
@media (max-width:620px){.principles{grid-template-columns:1fr}}
.timeline{list-style:none;padding:0;margin:0}
.timeline li{display:grid;grid-template-columns:90px 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--line)}
.timeline .y{font-family:var(--mono);color:var(--accent);font-size:13px;padding-top:2px}

/* Partners */
.who{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.who div{padding:24px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);display:grid;gap:8px;align-content:start}
.who h3{font-size:20px;font-weight:680}
.who p{color:var(--muted);font-size:15px}
.who .tag{color:var(--accent)}
@media (max-width:1000px){.who{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.who{grid-template-columns:1fr}}
.gets{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.gets li{list-style:none}
.gets ul{margin:0;padding:0}
@media (max-width:760px){.gets{grid-template-columns:1fr}}

/* Blog index */
.blog-row{display:grid;grid-template-columns:140px 1fr 150px;gap:28px;padding-block:28px;border-top:1px solid var(--line);text-decoration:none;align-items:baseline}
.blog-row:last-child{border-bottom:1px solid var(--line)}
.blog-row h2{font-size:clamp(22px,2.6vw,30px);font-weight:680;line-height:1.12;font-variation-settings:"wdth" 102}
.blog-row p{color:var(--muted);margin-top:8px;max-width:64ch}
.blog-row:hover h2{color:var(--accent)}
.blog-row .r{text-align:right}
@media (max-width:760px){.blog-row{grid-template-columns:1fr;gap:6px}.blog-row .r{text-align:left}}
.post-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:18px}
.back{display:inline-flex;gap:8px;align-items:center;font-weight:600;font-size:14px;text-decoration:none;color:var(--accent)}

/* Forms */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;background:var(--surface);border:1px solid var(--line);padding:28px}
.form .full{grid-column:1/-1}
.form label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:15.5px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:11px 12px}
.form textarea{min-height:130px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--focus);outline-offset:0;border-color:transparent}
.form .hint{font-size:13px;color:var(--muted);margin-top:5px}
.form-status{grid-column:1/-1;font-size:15px;padding:12px 14px;border-left:3px solid var(--accent);background:var(--accent-soft)}
.copyrow{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.copyrow .val{font-family:var(--mono);font-size:15px;user-select:all}
.copybtn{font:500 12.5px var(--mono);letter-spacing:.05em;text-transform:uppercase;background:none;border:1px solid var(--line);color:var(--ink);padding:5px 9px;border-radius:2px;cursor:pointer}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}.form{grid-template-columns:1fr;padding:20px}}

/* Footer */
footer{background:var(--bronze);color:var(--on-bronze-muted);font-size:14.5px}
footer .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr 1fr;gap:28px;padding-block:52px 28px}
footer h4{font-family:var(--mono);font-weight:500;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-bronze);margin-bottom:12px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer a{text-decoration:none}
footer a:hover{color:var(--on-bronze)}
footer .brand-mark{color:var(--on-bronze)}
.foot-base{border-top:1px solid rgba(236,230,223,.14)}
.foot-base .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-block:18px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase}
@media (max-width:900px){footer .wrap{grid-template-columns:1fr 1fr}}

@media (prefers-reduced-motion:reduce){.btn,.sys .go{transition:none}}

/* ================= ADDED FOR MULTI-PAGE SITE ================= */
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
@media (max-width:900px){.dim-tag{display:none}}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:var(--radius)}
.skip:focus{left:16px}

/* Contact: ways to reach us */
.ways{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);margin-top:34px}
.ways > div{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg);display:grid;gap:8px;align-content:start}
.ways h2{font-size:20px;font-weight:680;font-variation-settings:"wdth" 100}
.ways p{color:var(--muted);font-size:14.5px}
@media (max-width:820px){.ways{grid-template-columns:1fr}}
.form fieldset{border:0;padding:0;margin:0}
.form legend{font-weight:600;font-size:14px;margin-bottom:8px}
.form .chips label{font-weight:500;margin:0;display:inline-block}
.form input[type=file]{padding:9px;background:var(--surface-2)}
.form button[disabled]{opacity:.6;cursor:progress}
.after-steps .step h3{font-size:18px}

/* Blog */
.feature{display:grid;grid-template-columns:1.1fr .9fr;gap:0;border:1px solid var(--line);background:var(--surface);text-decoration:none;margin-bottom:44px}
.feature .fx{padding:34px;display:flex;flex-direction:column;gap:14px}
.feature h2{font-size:clamp(28px,3.4vw,42px);font-weight:720;line-height:1.08}
.feature p{color:var(--muted);font-size:16.5px;max-width:52ch}
.feature .more{margin-top:auto;font-weight:600;color:var(--accent)}
.feature .fd{background:var(--bg);border-left:1px solid var(--line);display:flex;align-items:center;padding:24px}
.feature:hover h2{color:var(--accent)}
@media (max-width:820px){.feature{grid-template-columns:1fr}.feature .fd{border-left:0;border-top:1px solid var(--line)}}
.filter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.filter button{font:500 14px var(--body);padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);cursor:pointer}
.filter button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.post-card .pd{background:var(--surface);border:1px solid var(--line);padding:12px;margin-bottom:4px}
.news{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;background:var(--surface-2);padding:30px;margin-top:56px}
.news h2{font-size:26px;font-weight:700}
.news p{color:var(--muted);margin-top:8px}
.news form{display:grid;grid-template-columns:1fr auto;gap:10px}
.news input{font:inherit;padding:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:var(--radius);min-width:0}
.news .form-status{grid-column:1/-1}
@media (max-width:760px){.news{grid-template-columns:1fr}.news form{grid-template-columns:1fr}}

/* Post */
.post-layout{display:grid;grid-template-columns:220px minmax(0,1fr) 280px;gap:48px;align-items:start}
.toc{position:sticky;top:calc(var(--header) + 24px);display:grid;gap:2px;font-size:14px}
.toc .tag{margin-bottom:8px}
.toc a{text-decoration:none;color:var(--muted);padding:6px 0 6px 12px;border-left:2px solid var(--line)}
.toc a.on{color:var(--accent);border-left-color:var(--accent)}
.prose h2[id]{scroll-margin-top:calc(var(--header) + 20px)}
.share{display:flex;gap:10px;align-items:center;margin-top:18px}
@media (max-width:1060px){.post-layout{grid-template-columns:minmax(0,1fr) 280px}.toc{display:none}}
@media (max-width:860px){.post-layout{grid-template-columns:1fr}}

/* 404 */
.nf{min-height:60vh;display:grid;place-items:center;text-align:left}
.nf h1{font-size:clamp(60px,12vw,150px);font-weight:800;font-variation-settings:"wdth" 125}

/* ================= BRAND / LOGO ================= */
:root{--logo-green:#A7CEC0}
.brand{gap:12px;color:var(--ink)}
.brand svg{display:block;overflow:hidden}
.brand-mk{width:42px;height:46px;transition:transform .35s cubic-bezier(.3,.7,.2,1)}
.brand:hover .brand-mk{transform:translateY(-2px)}
.brand:hover{--logo-green:var(--accent)}
.brand-words{display:flex;flex-direction:column;gap:4px}
.brand-dda{width:88px;height:23px}
.brand-cons{width:88px;height:11px}
.brand-cons text{font-family:var(--display);font-weight:600;font-size:112px;fill:currentColor;font-variation-settings:"wdth" 100}
.brand-tag{display:flex;flex-direction:column;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);line-height:1.45;border-left:1px solid var(--line);padding-left:14px;margin-left:4px}
@media (max-width:1180px){.brand-tag{display:none}}
@media (max-width:420px){.brand-mk{width:36px;height:40px}.brand-dda{width:76px;height:20px}.brand-cons{width:76px;height:10px}}

/* page-head watermark: the door mark drawn faint on the right, like a sheet stamp */
.page-head{position:relative;overflow:hidden}
.page-head .wrap{position:relative;z-index:1}
.ph-mark{position:absolute;top:26px;right:max(12px,calc((100% - 1180px)/2 + 12px));width:300px;height:330px;pointer-events:none;
  --logo-ink:color-mix(in srgb,var(--ink) 6%,transparent);--logo-green:color-mix(in srgb,var(--logo-green) 16%,transparent)}
.ph-mark svg{width:100%;height:100%}
@media (max-width:900px){.ph-mark{display:none}}

/* title block: logo cell */
.titleblock .wrap{grid-template-columns:auto repeat(5,1fr)!important}
.tb-mark{display:flex;align-items:center;gap:12px;padding-right:20px!important}
.tb-mark svg{width:30px;height:33px;color:var(--ink);flex:none}
.tb-mark strong{white-space:nowrap}
@media (max-width:820px){.titleblock .wrap{grid-template-columns:1fr 1fr!important}.tb-mark{grid-column:1/-1}}

/* footer */
.foot-logo{width:196px;height:170px;display:block;color:var(--on-bronze)}
.foot-mark div{max-width:1180px;margin-inline:auto;padding-inline:20px;font-size:0}
.foot-dda{width:100%;height:auto;aspect-ratio:955/251;display:block;--logo-ink:transparent;stroke:rgba(236,230,223,.2);stroke-width:3.2}

/* about, blog byline, 404 */
.about-logo{width:170px;height:148px;display:block;color:var(--ink)}
.byline{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px}
.by-mark{width:18px;height:20px;color:var(--ink)}
.nf-mark{width:120px;height:132px;color:var(--ink);margin-bottom:10px}

/* ================= GUIDE PAGES ================= */
.dd-menu.list{min-width:300px;grid-template-columns:1fr}
.dd-menu.list a{display:block;padding:9px 12px}
.guide-head .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.guide-head .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.guide-head h1{max-width:16ch}
.hero-fig{margin:0;background:var(--bg);border:1px solid var(--line);padding:10px}
.hero-fig img,.fig img{display:block;width:100%;height:auto;border-radius:2px}
.hero-fig figcaption,.fig figcaption{font-size:13.5px;color:var(--muted);padding:10px 4px 2px;line-height:1.45}
@media (max-width:900px){.guide-head .wrap{grid-template-columns:1fr;gap:26px}}
.guide .fig{margin:26px 0 8px;border:1px solid var(--line);background:var(--surface);padding:8px}
.answer{background:var(--accent-soft);border-left:3px solid var(--accent);padding:18px 20px}
.answer p{margin-top:6px;font-size:17px;line-height:1.55}
.guide table{width:100%;border-collapse:collapse;font-size:15px;margin-top:14px}
.guide table th,.guide table td{text-align:left;padding:10px 12px 10px 0;border-bottom:1px solid var(--line);vertical-align:top}
.guide table thead th{font-family:var(--mono);font-weight:500;font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);border-bottom:1.5px solid var(--ink)}
.guide table.facts{margin-top:22px}
.guide table.facts caption{text-align:left;padding-bottom:6px}
.guide table.facts th{font-family:var(--mono);font-weight:500;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);width:38%}
.guide table tbody th{font-weight:600}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll table{min-width:680px}
.steps-list{padding-left:22px}
.steps-list li{padding-left:4px}
.gloss{margin:0;display:grid;gap:0}
.gloss > div{padding:14px 0;border-top:1px solid var(--line);scroll-margin-top:calc(var(--header) + 20px)}
.gloss dt{font-family:var(--display);font-weight:650;font-size:18px;font-variation-settings:"wdth" 100}
.gloss dd{margin:4px 0 0;color:var(--muted)}
.gloss > div:target{background:var(--accent-soft)}
.refs{font-size:14.5px;padding-left:20px}
.refs a{color:var(--accent)}
.reviewed{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:34px!important}
.guide h2[id],.answer{scroll-margin-top:calc(var(--header) + 20px)}
.guide .faq summary{font-size:18px}
.rel{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:15px}
.rel a{color:var(--accent);text-decoration:none}
.rel a:hover{text-decoration:underline}
.area h3 a{text-decoration:none}
.area h3 a:hover{color:var(--accent)}
/* home: service cards */
.svc-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.svc-card{display:flex;flex-direction:column;text-decoration:none;background:var(--surface);border:1px solid var(--line);transition:border-color .2s ease,transform .2s ease}
.svc-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.svc-card img{display:block;width:100%;height:auto;aspect-ratio:8/5;object-fit:cover;border-bottom:1px solid var(--line)}
.svc-body{display:flex;flex-direction:column;gap:6px;padding:16px 16px 18px}
.svc-body b{font-family:var(--display);font-size:19px;font-weight:660;font-variation-settings:"wdth" 100}
.svc-body span{color:var(--muted);font-size:14.5px}
.svc-body .go{color:var(--accent);font-weight:600;margin-top:4px}
.sec .tag a{color:var(--accent)}
@media (max-width:1000px){.svc-cards{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.svc-cards{grid-template-columns:1fr}}
footer .wrap{grid-template-columns:1.2fr 1fr 1fr 1fr 1fr}
@media (max-width:900px){footer .wrap{grid-template-columns:1fr 1fr}}

/* ================= BI-FOLD MOTION ================= */
.fold-anim .leaf{fill:var(--accent);stroke:var(--ink);stroke-width:1.3;stroke-linejoin:round}
.fold-anim .hinge{fill:none;stroke:var(--accent);stroke-width:1.1;stroke-dasharray:6 4}
.fold-anim .pull{stroke:var(--ink);stroke-width:4;stroke-linecap:round}
.fold-anim .fold-state{fill:var(--accent)!important;font-weight:500;letter-spacing:.1em}
.fold-anim .leaf{fill-opacity:.2}
svg .fold{transform-box:fill-box;transform-origin:0 50%;transition:transform .6s cubic-bezier(.6,.05,.25,1)}
.sys:hover svg .fold,.dd-menu a:hover svg .fold,.related a:hover svg .fold,.sys:focus-visible svg .fold{transform:scaleX(.26)}
@media (prefers-reduced-motion:reduce){svg .fold{transition:none}}
/* touch feedback (finger passing over) */
.touched svg .fold{transform:scaleX(.26)}
.sys.touched{background:var(--accent-soft)}
.sys.touched .go,.touched .go{transform:translateX(4px)}
.svc-card.touched{border-color:var(--accent);transform:translateY(-2px)}
.post-card.touched h3{color:var(--accent)}
.fold-anim .fold-hint{fill:var(--muted)!important;font-size:10.5px;letter-spacing:.1em;transition:opacity .3s ease}
[data-fold] svg{user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}
/* partner referral card */
.partner-card{border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--surface);padding:22px 22px 24px}
.partner-card h3{font-size:26px;font-weight:700;margin:6px 0 10px}
.partner-card h3 a{color:var(--ink);text-decoration:none}
.partner-card h3 a:hover{color:var(--accent)}
.partner-card p a{color:var(--accent)}
.partner-card .disclose{font-size:13.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;margin:14px 0 16px}
.partner-card .btn{color:var(--accent-ink)}
.ref-note{font-size:12.5px;color:var(--muted);margin-top:6px!important}