/* Layout: engineering-drawing feel — navy title blocks, flame accent, photo-led hero, filterable project register */
:root{
  --bg:#F4F5F9; --surface:#FFFFFF; --sunk:#E9EBF3; --ink:#161A3A; --muted:#565C7E; --line:#D5D8E6;
  --navy:#262E78; --navy-ink:#FFFFFF; --flame:#E8531F; --amber:#F6A21A; --on-flame:#FFFFFF;
  --chip:#ECEEF8;
  --f-display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"Be Vietnam Pro","Segoe UI",Roboto,Arial,sans-serif;
  --r:6px; --wrap:1180px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0D1029; --surface:#161A3D; --sunk:#1D2250; --ink:#ECEDF7; --muted:#A7ABCB; --line:#2B3168;
  --navy:#1E2462; --navy-ink:#FFFFFF; --flame:#FF6A33; --amber:#FFB43A; --on-flame:#1A0A02; --chip:#22285A; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0D1029; --surface:#161A3D; --sunk:#1D2250; --ink:#ECEDF7; --muted:#A7ABCB; --line:#2B3168;
  --navy:#1E2462; --navy-ink:#FFFFFF; --flame:#FF6A33; --amber:#FFB43A; --on-flame:#1A0A02; --chip:#22285A; color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;margin:0}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.05;text-wrap:balance;margin:0;letter-spacing:.005em}
.eyebrow{font-family:var(--f-display);font-weight:600;font-size:15px;letter-spacing:.14em;text-transform:uppercase;color:var(--flame);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:28px;height:2px;background:linear-gradient(90deg,var(--amber),var(--flame))}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:600;font-size:18px;letter-spacing:.04em;text-transform:uppercase;text-decoration:none;padding:12px 22px;border-radius:var(--r);border:2px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-flame{background:var(--flame);color:var(--on-flame)}
.btn-ghost{border-color:currentColor;background:transparent;color:inherit}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--surface);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-logo{width:56px;height:48px;background:#fff;border-radius:4px;display:grid;place-items:center;padding:3px}
.brand-logo img{width:100%;height:100%;object-fit:contain}
.brand b{font-family:var(--f-display);font-size:21px;letter-spacing:.04em;color:var(--ink);display:block;line-height:1}
.brand small{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
nav.menu{display:flex;gap:22px;margin-left:auto}
nav.menu a{text-decoration:none;font-weight:500;font-size:15px;color:var(--muted)}
nav.menu a:hover{color:var(--flame)}
.lang{display:inline-flex;background:var(--navy);border-radius:var(--r);padding:3px;gap:2px;flex-shrink:0}
.lang button{font-family:var(--f-display);font-weight:700;font-size:16px;letter-spacing:.06em;background:transparent;color:rgba(255,255,255,.7);border:0;border-radius:4px;padding:6px 11px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.lang button[aria-pressed="true"]{background:var(--flame);color:var(--on-flame)}
.lang button:not([aria-pressed="true"]):hover{color:#fff}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:var(--r);color:var(--ink);font:inherit;padding:6px 12px;cursor:pointer}
@media (max-width:900px){
  nav.menu{display:none;position:absolute;left:0;right:0;top:68px;background:var(--surface);flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:6px 20px 14px}
  nav.menu.open{display:flex}
  nav.menu a{padding:10px 0;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .top .wrap{gap:10px}
  .lang button{font-size:15px;padding:5px 9px}
}
@media (max-width:480px){.brand small{display:none}.brand-logo{width:48px;height:42px}}

/* hero */
.hero{background:var(--navy);color:var(--navy-ink);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding-block:64px 56px;position:relative;z-index:1}
.hero h1{font-size:clamp(42px,6vw,76px);text-transform:uppercase;margin:16px 0 18px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--amber),var(--flame));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;max-width:52ch;color:rgba(255,255,255,.82);margin:0 0 28px}
.hero .eyebrow{color:var(--amber)}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px}
.hero-photo{position:relative;min-width:0}
.hero-photo img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r);box-shadow:0 30px 60px rgba(0,0,0,.35)}
.hero-photo .tag{position:absolute;left:-18px;bottom:28px;background:var(--surface);color:var(--ink);padding:14px 18px;border-radius:var(--r);border-left:4px solid var(--flame);max-width:240px;font-size:14px;line-height:1.4}
.hero-photo .tag b{font-family:var(--f-display);font-size:22px;display:block}
.facts{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.18);position:relative;z-index:1}
.facts div{padding:22px 20px;border-right:1px solid rgba(255,255,255,.18)}
.facts div:last-child{border-right:0}
.facts b{font-family:var(--f-display);font-size:36px;display:block;line-height:1;color:var(--amber);font-variant-numeric:tabular-nums}
.facts span{font-size:14px;color:rgba(255,255,255,.75)}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-block:44px}
  .hero-photo img{aspect-ratio:16/10}
  .hero-photo .tag{left:12px;bottom:12px}
  .facts div{padding:18px 12px}
  .facts b{font-size:30px}
  .facts span{font-size:13px;line-height:1.4;display:block;margin-top:4px}
}

section{padding-block:84px}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:end;margin-bottom:40px}
.sec-head h2{font-size:clamp(34px,4.4vw,54px);text-transform:uppercase;margin-top:10px}
.sec-head p{color:var(--muted);margin:0;max-width:56ch}
@media (max-width:800px){.sec-head{grid-template-columns:1fr;gap:12px}section{padding-block:60px}}

/* lifecycle */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-bottom:56px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.flow > div{padding:20px 18px;border-right:1px solid var(--line);min-width:0}
.flow > div:last-child{border-right:0}
.flow .n{font-family:var(--f-display);font-size:14px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.flow h3{font-size:22px;margin:6px 0 10px}
.flow .who{display:flex;flex-wrap:wrap;gap:6px}
.pill{font-size:12px;font-weight:600;padding:3px 9px;border-radius:99px;background:var(--chip);color:var(--ink);white-space:nowrap}
.pill.tk{background:color-mix(in srgb,var(--flame) 16%,transparent);color:var(--flame)}
.pill.tt{background:color-mix(in srgb,var(--amber) 22%,transparent);color:color-mix(in srgb,var(--amber) 55%,var(--ink))}
.pill.gs{background:color-mix(in srgb,var(--navy) 18%,transparent);color:color-mix(in srgb,var(--navy) 50%,var(--ink))}
@media (max-width:900px){.flow{grid-template-columns:1fr}.flow > div{border-right:0;border-bottom:1px solid var(--line)}.flow > div:last-child{border-bottom:0}}

/* services tabs */
.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:0}
.tab{all:unset;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-bottom:none;border-radius:var(--r) var(--r) 0 0;padding:20px 22px;display:flex;flex-direction:column;gap:6px;position:relative}
.tab .code{font-family:var(--f-display);font-size:14px;letter-spacing:.12em;color:var(--muted)}
.tab b{font-family:var(--f-display);font-size:24px;line-height:1.1;text-transform:uppercase}
.tab[aria-selected="true"]{background:var(--navy);color:var(--navy-ink);border-color:var(--navy)}
.tab[aria-selected="true"] .code{color:var(--amber)}
.tab[aria-selected="true"]::after{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--amber),var(--flame));border-radius:var(--r) var(--r) 0 0}
.tab:focus-visible{outline:3px solid var(--amber)}
.panel{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--navy);border-radius:0 0 var(--r) var(--r);padding:36px}
.panel-intro{font-size:17px;max-width:75ch;margin:0 0 28px;color:var(--muted)}
/* min() keeps a single column inside 320px screens, where 280px exceeded the panel width. */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:28px}
.block{min-width:0}
.block h4{font-family:var(--f-display);font-size:20px;text-transform:uppercase;letter-spacing:.03em;margin:0 0 12px;display:flex;align-items:center;gap:10px}
.block h4 .k{font-size:12px;font-family:var(--f-body);font-weight:700;letter-spacing:.06em;padding:2px 8px;border-radius:4px;background:var(--flame);color:var(--on-flame)}
.block h4 .k.pfp{background:var(--navy);color:var(--navy-ink)}
.block ul,.block ol{margin:0;padding-left:20px;display:grid;gap:8px}
.block li{font-size:15px}
.block li::marker{color:var(--flame)}
.note{margin-top:28px;padding:16px 20px;background:var(--sunk);border-radius:var(--r);font-size:15px}
.note b{color:var(--flame)}
@media (max-width:800px){.tabs{grid-template-columns:1fr;gap:6px}.tab{border-radius:var(--r);border-bottom:1px solid var(--line)}.panel{padding:22px;border-radius:var(--r)}}

/* AFP / PFP */
.split{background:var(--surface);border-block:1px solid var(--line)}
.ap{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.ap > div{padding:32px;min-width:0}
.ap > div + div{border-left:1px solid var(--line)}
.ap h3{font-size:30px;text-transform:uppercase}
.ap .en{font-family:var(--f-display);letter-spacing:.12em;text-transform:uppercase;font-size:15px}
.ap .afp .en{color:var(--flame)} .ap .pfp .en{color:color-mix(in srgb,var(--navy) 55%,var(--ink))}
.ap ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:0}
.ap li{padding:11px 0;border-top:1px dashed var(--line);display:flex;gap:12px;font-size:15px}
.ap li span{font-family:var(--f-display);font-weight:600;color:var(--muted);min-width:34px}
.classes{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.classes .pill{font-family:var(--f-display);font-size:15px;letter-spacing:.04em}
@media (max-width:800px){.ap{grid-template-columns:1fr}.ap > div + div{border-left:0;border-top:1px solid var(--line)}.ap > div{padding:22px}}

/* projects */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;align-items:center}
.filters .lbl{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-right:4px}
.fbtn{font:inherit;font-size:14px;font-weight:500;padding:7px 14px;border-radius:99px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.fbtn[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fgroup{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filters .sep{width:1px;height:24px;background:var(--line);margin-inline:8px}
.count{margin-left:auto;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:1000px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid{grid-template-columns:1fr}.filters .sep{display:none}.count{margin-left:0;width:100%}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;min-width:0}
.card button.ph{all:unset;cursor:zoom-in;display:block;position:relative;aspect-ratio:16/10;background:var(--sunk);overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .ph img{transform:scale(1.04)}
.card .ph .svc{position:absolute;left:12px;top:12px}
.card .ph .svc .pill{background:var(--surface);color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.18)}
.card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:22px;text-transform:uppercase;line-height:1.1}
.card dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:14px}
.card dt{color:var(--muted);font-weight:500}
.card dd{margin:0;min-width:0}
.card .type{margin-top:auto;padding-top:8px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}

/* certificates */
.certs{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.cert{all:unset;cursor:zoom-in;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:10px}
.cert img{aspect-ratio:3/4;object-fit:cover;object-position:top;width:100%;border-radius:3px;background:#fff}
.cert span{font-size:13px;font-weight:600}
.cert:focus-visible{outline:3px solid var(--amber)}
.legal{display:grid;gap:14px}
.legal div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.legal b{font-family:var(--f-display);font-size:20px;text-transform:uppercase;display:block;margin-bottom:4px}
.legal p{margin:0;font-size:15px;color:var(--muted)}
@media (max-width:900px){.certs{grid-template-columns:1fr}}

/* team */
.team{display:grid;grid-template-columns:1.45fr 1fr;gap:36px;align-items:start}
.team figure{margin:0;min-width:0}
.team .photo{all:unset;cursor:zoom-in;display:block;border-radius:var(--r);overflow:hidden;background:var(--sunk);box-shadow:0 20px 44px rgba(22,26,58,.16);position:relative}
.team .photo::after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:linear-gradient(90deg,var(--amber),var(--flame))}
.team .photo img{width:100%;aspect-ratio:4/3;object-fit:cover}
.team .photo:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.team figcaption{font-size:14px;color:var(--muted);margin-top:12px}
.roles{display:grid;gap:0;border-top:1px solid var(--line)}
.roles div{padding:18px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:44px 1fr;gap:4px 14px}
.roles .n{font-family:var(--f-display);font-weight:700;font-size:26px;line-height:1;color:var(--flame);grid-row:span 2}
.roles b{font-family:var(--f-display);font-size:21px;text-transform:uppercase;line-height:1.1}
.roles p{margin:0;font-size:15px;color:var(--muted)}
@media (max-width:900px){.team{grid-template-columns:1fr;gap:28px}}

/* contact */
.contact{background:linear-gradient(90deg,rgba(18,22,70,.96) 0%,rgba(18,22,70,.9) 45%,rgba(18,22,70,.72) 100%),url(../img/closing.jpg) center/cover no-repeat,var(--navy);color:var(--navy-ink)}
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact h2{font-size:clamp(36px,4.6vw,58px);text-transform:uppercase;margin:10px 0 18px}
.contact .eyebrow{color:var(--amber)}
.contact p{color:rgba(255,255,255,.8);max-width:46ch}
.cinfo{display:grid;gap:0;margin-top:28px;border-top:1px solid rgba(255,255,255,.2)}
.cinfo div{display:grid;grid-template-columns:110px 1fr auto;gap:12px;align-items:center;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.2)}
.cinfo .k{font-family:var(--f-display);letter-spacing:.12em;text-transform:uppercase;font-size:14px;color:var(--amber)}
.cinfo .v{font-size:17px;font-weight:600;min-width:0;overflow-wrap:anywhere}
.cinfo .v.big{font-family:var(--f-display);font-size:30px;letter-spacing:.03em}
a.v{text-decoration:none}
a.v:hover{text-decoration:underline;text-underline-offset:3px}
.copy{font:inherit;font-size:13px;padding:5px 10px;border-radius:4px;border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;cursor:pointer}
form.quote{background:var(--surface);color:var(--ink);border-radius:var(--r);padding:28px;display:grid;gap:14px;min-width:0}
form.quote h3{font-size:26px;text-transform:uppercase}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:grid;gap:5px;font-size:13px;font-weight:600;color:var(--muted)}
input,select,textarea{font:inherit;font-size:15px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:10px 12px;width:100%;min-width:0}
textarea{min-height:96px;resize:vertical}
.formmsg{font-size:14px;background:var(--sunk);padding:12px 14px;border-radius:4px;border-left:3px solid var(--flame)}
@media (max-width:900px){.contact .wrap{grid-template-columns:1fr}.row2{grid-template-columns:1fr}.cinfo div{grid-template-columns:1fr auto}.cinfo .k{grid-column:1/-1}}

footer{background:var(--bg);border-top:1px solid var(--line);padding-block:28px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(8,10,30,.9);display:grid;place-items:center;padding:24px}
.lb figure{margin:0;max-width:min(1100px,100%);display:grid;gap:10px}
.lb img{max-height:80vh;width:auto;margin:0 auto;border-radius:4px;background:#fff}
.lb figcaption{color:#fff;font-size:15px;text-align:center}
.lb button{position:absolute;top:16px;right:16px;font:inherit;font-size:15px;background:#fff;color:#111;border:0;border-radius:4px;padding:8px 14px;cursor:pointer}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Replacements for inline style attributes, which CSP style-src 'self' blocks. */
.hero{padding:0}
.hero .wrap.wrap-facts{padding-block:0}
form.quote .btn-submit{justify-self:start}
.grid-empty{color:var(--muted)}