/* Layout: an engineering drawing sheet as the hero (plan view + title block); the rest is quiet, start-aligned, sign-blue on cool paper */
:root{
  --paper:#f3f6f9; --sheet:#ffffff; --ink:#0e2440; --muted:#52627a; --line:#d4dce6;
  --sign:#1f55a5; --sign-ink:#ffffff; --sign-soft:#e6eef9; --marking:#e3a800; --asphalt:#18212c; --asphalt-ink:#dfe6ef;
  --ok:#2f7d4f; --err:#b3261e;
  --f-fa:"Plex Arabic",Tahoma,"Segoe UI",sans-serif;
  --f-en:"Plex Sans","Segoe UI",Helvetica,Arial,sans-serif;
  --f-mono:"Plex Mono",Consolas,"Courier New",monospace;
  --r:6px; --wrap:1180px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0f151d; --sheet:#151d27; --ink:#e3e9f1; --muted:#9aa9bb; --line:#283442;
  --sign:#6a9be0; --sign-ink:#0b1420; --sign-soft:#1a2738; --marking:#f0c03a; --asphalt:#0a0f15; --asphalt-ink:#c9d3df;
  --ok:#6cc08d; --err:#f08a80; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0f151d; --sheet:#151d27; --ink:#e3e9f1; --muted:#9aa9bb; --line:#283442;
  --sign:#6a9be0; --sign-ink:#0b1420; --sign-soft:#1a2738; --marking:#f0c03a; --asphalt:#0a0f15; --asphalt-ink:#c9d3df;
  --ok:#6cc08d; --err:#f08a80; color-scheme:dark}

@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-ar-400.woff2) format("woff2");font-weight:400;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+200C-200E,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-ar-500.woff2) format("woff2");font-weight:500;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+200C-200E,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-ar-600.woff2) format("woff2");font-weight:600;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+200C-200E,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-ar-700.woff2) format("woff2");font-weight:700;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+200C-200E,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-la-400.woff2) format("woff2");font-weight:400;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-la-600.woff2) format("woff2");font-weight:600;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:"Plex Arabic";src:url(../fonts/plex-arabic-la-700.woff2) format("woff2");font-weight:700;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:"Plex Sans";src:url(../fonts/plex-sans-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(../fonts/plex-sans-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(../fonts/plex-sans-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(../fonts/plex-sans-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Plex Mono";src:url(../fonts/plex-mono-400.woff2) format("woff2");font-weight:400;font-display:swap}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-fa);font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums}
html[lang="en"] body{font-family:var(--f-en);line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--sign)}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--marking);outline-offset:2px;border-radius:2px}
h1,h2,h3,h4{line-height:1.4;text-wrap:balance;margin:0;font-weight:700}
html[lang="en"] h1,html[lang="en"] h2,html[lang="en"] h3{line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0}
.ltr{direction:ltr;unicode-bidi:isolate;display:inline-block}
.skip{position:absolute;inset-inline-start:-999px;top:8px;background:var(--sign);color:var(--sign-ink);padding:8px 14px;z-index:100}
.skip:focus{inset-inline-start:8px}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* header */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--sheet)}
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--sheet);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:24px;min-height:80px}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:58px;width:auto}
.brand .on-dark{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand .on-light{display:none}:root:not([data-theme="light"]) .brand .on-dark{display:block}}
:root[data-theme="dark"] .brand .on-light{display:none}
:root[data-theme="dark"] .brand .on-dark{display:block}
.nav{display:flex;align-items:center;gap:4px;margin-inline-start:auto}
.nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:15px;padding:8px 12px;border-radius:var(--r)}
.nav a:hover{background:var(--sign-soft)}
.nav a[aria-current="page"]{color:var(--sign);font-weight:700}
.nav .lang{border:1px solid var(--line);margin-inline-start:8px;font-family:var(--f-en);font-size:14px}
html[lang="en"] .nav .lang{font-family:var(--f-fa)}
.menu-btn{display:none;margin-inline-start:auto;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r);padding:8px 12px;font:inherit;font-size:15px;cursor:pointer}
@media (max-width:900px){
  .brand img{height:48px}
  .menu-btn{display:block}
  .nav{display:none;position:absolute;inset-inline:0;top:100%;background:var(--sheet);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px));gap:2px}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .nav .lang{margin:8px 0 0;text-align:center}
}

/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 22px;border-radius:var(--r);font:inherit;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;border:1px solid var(--sign);background:var(--sign);color:var(--sign-ink)}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--sign)}
.btn.ghost:hover{background:var(--sign-soft);filter:none}

/* hero: drawing sheet */
.hero{padding-block:56px 64px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.hero-text{display:flex;flex-direction:column;gap:20px;min-width:0}
.hero h1{font-size:clamp(30px,4.2vw,46px)}
.hero .lead{font-size:18px;color:var(--muted);max-width:34em}
.sheet{position:relative;background:var(--sheet);border:1px solid var(--line);border-radius:2px;padding:14px;min-width:0;box-shadow:0 1px 0 var(--line),0 18px 40px -24px rgba(14,36,64,.35)}
.sheet-in{position:relative;border:1.5px solid var(--ink);opacity:.98}
.sheet svg{display:block;width:100%;height:auto}
.sheet .grid{stroke:var(--line);stroke-width:.6}
.sheet .edge{fill:none;stroke:var(--ink);stroke-width:1.4}
.sheet .center{fill:none;stroke:var(--marking);stroke-width:2;stroke-dasharray:10 8}
.sheet .tick{stroke:var(--ink);stroke-width:1}
.sheet .km{font-family:var(--f-mono);font-size:10px;fill:var(--muted)}
.sheet .north{fill:none;stroke:var(--ink);stroke-width:1.2}
.sheet .north-n{font-family:var(--f-mono);font-size:11px;fill:var(--ink)}
.sheet .draw{stroke-dasharray:var(--len);stroke-dashoffset:0}
@media (prefers-reduced-motion:no-preference){
  .sheet .draw{animation:draw 1.6s cubic-bezier(.5,0,.2,1) both}
  @keyframes draw{from{stroke-dashoffset:var(--len)}to{stroke-dashoffset:0}}
}
.titleblock{position:absolute;inset-inline-start:auto;right:0;bottom:0;background:var(--sheet);border-top:1.5px solid var(--ink);border-left:1.5px solid var(--ink);display:grid;grid-template-columns:auto auto;font-size:12.5px;line-height:1.5;min-width:0}
html[dir="ltr"] .titleblock{right:0}
.titleblock .tb-h{grid-column:1/-1;padding:6px 10px;font-weight:700;font-size:13px;border-bottom:1px solid var(--ink)}
.titleblock dt,.titleblock dd{margin:0;padding:5px 10px;border-bottom:1px solid var(--line)}
.titleblock dt{color:var(--muted);border-inline-end:1px solid var(--line)}
.titleblock dd{font-weight:700}
.titleblock dt:nth-last-of-type(1),.titleblock dd:last-of-type{border-bottom:0}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:minmax(0,1fr);gap:32px}
}
@media (max-width:560px){
  .titleblock{position:static;border:0;border-top:1.5px solid var(--ink)}
}

/* sections */
.sec{padding-block:72px}
.sec.alt{background:var(--sheet);border-block:1px solid var(--line)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px 32px;margin-bottom:36px}
.sec-head > div{display:flex;flex-direction:column;gap:8px;max-width:44em;min-width:0}
.sec-head h2{font-size:clamp(24px,2.8vw,32px)}
.sec-head p{color:var(--muted)}
.more{font-weight:600;text-decoration:none;white-space:nowrap}
.more:hover{text-decoration:underline}

/* service lines */
.lines{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.line-item{background:var(--sheet);padding:28px;display:grid;grid-template-columns:44px minmax(0,1fr);gap:4px 18px;align-content:start}
.sec.alt .line-item{background:var(--paper)}
.line-item svg{grid-row:span 3;width:44px;height:44px;color:var(--sign)}
.line-item h3{font-size:20px}
.line-item p{color:var(--muted)}
.line-item .eg{font-size:14px;color:var(--ink);margin-top:8px}
.line-item .eg b{font-weight:600}
@media (max-width:760px){.lines{grid-template-columns:minmax(0,1fr)}.line-item{padding:22px 18px}}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--sign-soft);color:var(--sign);font-size:14px;font-weight:600;line-height:1.7}

/* projects */
.projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.proj{display:flex;flex-direction:column;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;min-width:0}
.sec.alt .proj{background:var(--paper)}
.proj .ph{aspect-ratio:3/2;max-width:100%;background:var(--sign-soft);overflow:hidden}
.proj .ph img{width:100%;height:100%;object-fit:cover}
.proj .ph svg{width:100%;height:100%;display:block;color:var(--sign)}
.proj .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;min-width:0}
.proj .cat{font-size:13px;font-weight:600;color:var(--sign)}
.proj h3{font-size:18px}
.proj p{font-size:15px;color:var(--muted)}
.proj[hidden]{display:none!important}
@media (max-width:960px){.projects{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.projects{grid-template-columns:minmax(0,1fr)}}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filters button{font:inherit;font-size:14px;font-weight:600;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--sheet);color:var(--ink);cursor:pointer;min-height:38px}
.filters button[aria-pressed="true"]{background:var(--sign);border-color:var(--sign);color:var(--sign-ink)}

/* map */
.mapblock{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:48px;align-items:center}
.mapblock figure{margin:0;background:#fbfcfd;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.mapblock figcaption{font-size:13px;color:#52627a;margin-top:8px}
.mapblock .txt{display:flex;flex-direction:column;gap:16px;min-width:0}
.mapblock h2{font-size:clamp(24px,2.8vw,32px)}
.mapblock p{color:var(--muted)}
@media (max-width:860px){.mapblock{grid-template-columns:minmax(0,1fr);gap:28px}}

/* grades */
.grades{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
.grade-box{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:14px;min-width:0}
.sec.alt .grade-box{background:var(--paper)}
.grade-box h3{font-size:18px}
.grade-box .src{font-size:14px;color:var(--muted);margin-top:-8px}
.gl{list-style:none;display:flex;flex-direction:column}
.gl li{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px dashed var(--line)}
.gl li:last-child{border-bottom:0}
.gl .g{flex:none;font-weight:700;color:var(--sign);white-space:nowrap}
.gl .g1{color:var(--ink);background:var(--marking);padding:0 10px;border-radius:4px}
@media (max-width:760px){.grades{grid-template-columns:minmax(0,1fr)}}

/* clients */
.clients{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.clients li{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;font-weight:500;font-size:15px;display:flex;align-items:center}
.sec.alt .clients li{background:var(--paper)}

/* cta band */
.cta{background:var(--sign);color:var(--sign-ink)}
.cta .wrap{padding-block:48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.cta h2{font-size:clamp(22px,2.6vw,28px)}
.cta p{opacity:.9}
.cta .btn{background:var(--sign-ink);color:var(--sign);border-color:var(--sign-ink)}

/* page head */
.page-head{padding-block:56px 40px;border-bottom:1px solid var(--line);background:var(--sheet)}
.page-head .wrap{display:flex;flex-direction:column;gap:12px}
.page-head h1{font-size:clamp(28px,3.6vw,40px)}
.page-head p{color:var(--muted);font-size:18px;max-width:40em}
.crumb{font-size:14px;color:var(--muted)}
.crumb a{color:var(--muted)}

/* prose & about */
.prose{max-width:46em;display:flex;flex-direction:column;gap:16px;font-size:17px}
.prose p{color:var(--ink)}
.charter{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.charter > div{display:flex;flex-direction:column;gap:10px;min-width:0;padding-top:18px;border-top:2px solid var(--ink)}
.charter .k{font-size:14px;color:var(--muted);font-weight:600}
.charter h3{font-size:20px}
.charter p{color:var(--muted)}
@media (max-width:860px){.charter{grid-template-columns:minmax(0,1fr)}}
.levers{list-style:none;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:8px}
.levers li{background:var(--sign-soft);border-radius:var(--r);padding:14px;font-weight:600;font-size:15px;color:var(--ink)}
@media (max-width:860px){.levers{grid-template-columns:repeat(2,minmax(0,1fr))}}
.priority{list-style:none;counter-reset:p;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--sheet)}
.priority li{counter-increment:p;padding:18px 14px;display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:15px;border-inline-end:1px solid var(--line);min-width:0}
.priority li:last-child{border-inline-end:0}
.priority li::before{content:counter(p,persian);font-size:26px;font-weight:700;color:var(--sign);line-height:1}
html[lang="en"] .priority li::before{content:counter(p)}
@media (max-width:860px){.priority{grid-template-columns:minmax(0,1fr)}.priority li{flex-direction:row;align-items:center;gap:14px;border-inline-end:0;border-bottom:1px solid var(--line)}.priority li:last-child{border-bottom:0}}
.values{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
.values > div{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:12px;min-width:0}
.sec.alt .values > div{background:var(--paper)}
.values h3{font-size:20px}
.values ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.values li{padding-inline-start:18px;position:relative}
.values li::before{content:"";position:absolute;inset-inline-start:0;top:.8em;width:8px;height:3px;background:var(--marking)}
.values li b{font-weight:600}
@media (max-width:760px){.values{grid-template-columns:minmax(0,1fr)}}
.board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.person{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:flex;flex-direction:column;gap:6px;min-width:0}
.person .av{width:64px;height:64px;border-radius:50%;background:var(--sign-soft);color:var(--sign);display:grid;place-items:center;margin-bottom:8px}
.person .av svg{width:30px;height:30px}
.person h3{font-size:17px}
.person .role{color:var(--sign);font-weight:600;font-size:15px}
.person .deg{color:var(--muted);font-size:14px}
@media (max-width:900px){.board{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.board{grid-template-columns:minmax(0,1fr)}}
.todo{outline:2px dashed var(--marking);outline-offset:2px}

.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-block:1px solid var(--line)}
.facts div{padding:22px 16px;display:flex;flex-direction:column;gap:4px;border-inline-end:1px solid var(--line)}
.facts div:last-child{border-inline-end:0}
.facts b{font-size:28px;font-weight:700;color:var(--sign);line-height:1.3}
.facts span{font-size:14px;color:var(--muted)}
@media (max-width:760px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}.facts div:nth-child(2){border-inline-end:0}.facts div:nth-child(-n+2){border-bottom:1px solid var(--line)}}

/* contact & forms */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
@media (max-width:860px){.contact-grid{grid-template-columns:minmax(0,1fr)}}
.info{list-style:none;display:flex;flex-direction:column;gap:18px}
.info li{display:flex;flex-direction:column;gap:2px}
.info .k{font-size:14px;color:var(--muted)}
.info .v{font-weight:600;font-size:17px}
.info a{text-decoration:none}
.form{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px 18px}
.form .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:14px;font-weight:600}
.field label small{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;min-height:46px;width:100%}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--sign);outline-offset:0;border-color:var(--sign)}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{grid-column:1/-1;font-weight:600;min-height:1.5em}
.form-status.ok{color:var(--ok)}
.form-status.err{color:var(--err)}
@media (max-width:600px){.form{grid-template-columns:minmax(0,1fr);padding:20px}}
.note{background:var(--sign-soft);border-radius:var(--r);padding:18px 20px;color:var(--ink)}

/* footer */
.site-foot{background:var(--asphalt);color:var(--asphalt-ink);font-size:15px}
.site-foot .wrap{padding-block:48px 28px;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,3fr) minmax(0,3fr);gap:36px}
.site-foot img{height:52px;width:auto;margin-bottom:14px}
.site-foot h2{font-size:15px;color:#fff;margin-bottom:12px}
.site-foot p{opacity:.85}
.site-foot ul{list-style:none;display:flex;flex-direction:column;gap:6px}
.site-foot a{color:var(--asphalt-ink);text-decoration:none}
.site-foot a:hover{color:#fff;text-decoration:underline}
.site-foot .base{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:13px;opacity:.7;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px}
.roadline{height:6px;background:repeating-linear-gradient(90deg,var(--marking) 0 40px,transparent 40px 72px),var(--asphalt)}
@media (max-width:860px){.site-foot .wrap{grid-template-columns:minmax(0,1fr)}}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ===================== v2: richer graphics and motion ===================== */
.sheet .contour{fill:none;stroke:var(--sign);stroke-width:.8;opacity:.18}
.sheet .asphalt{fill:none;stroke:var(--sign-soft);stroke-width:26;stroke-linecap:round}
.sheet .bridge path{stroke:var(--ink);stroke-width:2.4;stroke-linecap:round}
.sheet .car rect{fill:var(--sign)}
.sheet .car.b rect{fill:var(--marking)}
@media (prefers-reduced-motion:no-preference){
  .sheet .center{animation:march 1.2s linear infinite}
  @keyframes march{to{stroke-dashoffset:-18}}
  .sheet .tick,.sheet .km{animation:tickin .5s ease both;animation-delay:calc(1.1s + var(--i,0) * .12s)}
  @keyframes tickin{from{opacity:0}to{opacity:1}}
  .titleblock{animation:tbin .7s cubic-bezier(.2,.8,.2,1) 1.4s both}
  @keyframes tbin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){.sheet .car{display:none}}

/* hero background: faint survey grid fading out */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:48px 48px;opacity:.55;
  -webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 0%,transparent 70%);mask-image:radial-gradient(ellipse at 30% 40%,#000 0%,transparent 70%)}
.hero .kicker{font-size:15px;font-weight:600;color:var(--sign);display:flex;align-items:center;gap:10px}
.hero .kicker::before{content:"";width:28px;height:3px;background:repeating-linear-gradient(90deg,var(--marking) 0 8px,transparent 8px 12px)}

/* photo strip: continuous film of project photos */
.film{background:var(--asphalt);padding-block:14px;overflow:hidden;direction:ltr}
.film-track{display:flex;gap:14px;width:max-content}
.film figure{margin:0;position:relative;flex:none;width:300px;aspect-ratio:3/2;max-width:80vw;border-radius:4px;overflow:hidden}
.film img{width:100%;height:100%;object-fit:cover;filter:saturate(.9)}
.film figcaption{position:absolute;inset:auto 0 0 0;padding:22px 12px 8px;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(transparent,rgba(5,12,22,.85));direction:rtl;text-align:right}
html[lang="en"] .film figcaption{direction:ltr;text-align:left}
@media (prefers-reduced-motion:no-preference){
  .film-track{animation:film 60s linear infinite}
  .film:hover .film-track{animation-play-state:paused}
  @keyframes film{to{transform:translateX(-50%)}}
}
@media (prefers-reduced-motion:reduce){.film{overflow-x:auto}}

/* stats band: dark road with lane markings */
.stats{background:var(--asphalt);color:#fff;position:relative;overflow:hidden}
.stats::after{content:"";position:absolute;inset:auto 0 0 0;height:5px;background:repeating-linear-gradient(90deg,var(--marking) 0 46px,transparent 46px 84px)}
.stats .wrap{padding-block:56px 64px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat{display:flex;flex-direction:column;gap:6px;padding-inline-start:20px;border-inline-start:1px solid rgba(255,255,255,.16);min-width:0}
.stat b{font-size:clamp(36px,4.6vw,56px);font-weight:700;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.stat b small{font-size:.5em;color:var(--marking);margin-inline-start:4px}
.stat span{font-size:15px;color:#b9c6d6}
@media (max-width:820px){.stats .wrap{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px}}

/* process: stations along a road */
.process{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;list-style:none;padding-top:46px;margin-top:48px}
.process::before{content:"";position:absolute;top:14px;inset-inline:6%;height:14px;border-radius:7px;background:var(--asphalt)}
.process::after{content:"";position:absolute;top:20px;inset-inline:7%;height:2px;background:repeating-linear-gradient(90deg,var(--marking) 0 14px,transparent 14px 24px)}
.process li{position:relative;display:flex;flex-direction:column;gap:6px;text-align:center;align-items:center;min-width:0}
.process li::before{content:"";position:absolute;top:-40px;width:26px;height:26px;border-radius:50%;background:var(--sheet);border:4px solid var(--sign);box-sizing:border-box;z-index:1}
.process b{font-size:13px;color:var(--sign);font-weight:700}
.process h3{font-size:17px}
.process p{font-size:14px;color:var(--muted)}
@media (max-width:820px){
  .process{grid-template-columns:minmax(0,1fr);padding-top:0;padding-inline-start:44px;gap:24px}
  .process::before{top:0;bottom:0;inset-inline-start:6px;inset-inline-end:auto;width:14px;height:auto}
  .process::after{top:0;bottom:0;inset-inline-start:12px;inset-inline-end:auto;width:2px;height:auto;background:repeating-linear-gradient(180deg,var(--marking) 0 14px,transparent 14px 24px)}
  .process li{text-align:start;align-items:flex-start}
  .process li::before{top:2px;inset-inline-start:-38px}
}

/* contracts breakdown bars */
.breakdown{display:flex;flex-direction:column;gap:18px}
.bar{display:grid;grid-template-columns:minmax(0,15em) minmax(0,1fr) 3.5em;gap:16px;align-items:center}
.bar .lbl{font-weight:600;font-size:15px}
.bar .track{height:18px;border-radius:9px;background:var(--sign-soft);overflow:hidden}
.bar .fill{height:100%;width:var(--w);border-radius:9px;background:var(--c,var(--sign));transform-origin:var(--from,right)}
html[dir="ltr"] .bar .fill{--from:left}
.bar .n{font-weight:700;font-size:20px;color:var(--sign);text-align:end}
@media (max-width:640px){.bar{grid-template-columns:minmax(0,1fr) 3em}.bar .lbl{grid-column:1/-1}}
.total-note{color:var(--muted);font-size:15px;margin-top:6px}

/* page heads get a drawing-sheet texture and a road line */
.page-head{position:relative;overflow:hidden;isolation:isolate;background:var(--sheet)}
.page-head::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:40px 40px;opacity:.5;
  -webkit-mask-image:linear-gradient(to left,#000,transparent 75%);mask-image:linear-gradient(to left,#000,transparent 75%)}
html[dir="rtl"] .page-head::before{-webkit-mask-image:linear-gradient(to right,#000,transparent 75%);mask-image:linear-gradient(to right,#000,transparent 75%)}
.page-head .ph-road{position:absolute;inset-inline-end:-40px;bottom:-30px;width:min(520px,60%);height:auto;z-index:-1;opacity:.9}
.page-head .ph-road .r{fill:none;stroke:var(--sign-soft);stroke-width:30}
.page-head .ph-road .e{fill:none;stroke:var(--sign);stroke-width:1.2;opacity:.6}
.page-head .ph-road .c{fill:none;stroke:var(--marking);stroke-width:2;stroke-dasharray:10 8}
@media (max-width:700px){.page-head .ph-road{opacity:.35}}

/* richer project cards */
.proj{transition:transform .25s ease,box-shadow .25s ease}
.proj .ph{position:relative}
.proj .ph img{transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.proj:hover{transform:translateY(-4px);box-shadow:0 18px 36px -22px rgba(14,36,64,.45)}
.proj:hover .ph img{transform:scale(1.06)}
.proj .yr{position:absolute;top:10px;inset-inline-start:10px;background:var(--asphalt);color:#fff;font-size:12.5px;font-weight:600;padding:2px 10px;border-radius:999px}

/* why us */
.why{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;counter-reset:w}
.why > div{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:22px 18px;display:flex;flex-direction:column;gap:10px;min-width:0;position:relative;overflow:hidden}
.sec.alt .why > div{background:var(--paper)}
.why svg{width:36px;height:36px;color:var(--sign)}
.why h3{font-size:17px}
.why p{font-size:14.5px;color:var(--muted)}
@media (max-width:1000px){.why{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.why{grid-template-columns:minmax(0,1fr)}}

/* scroll reveal (only applied by JS to elements below the fold) */
@media (prefers-reduced-motion:no-preference){
  .rv{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d,0s)}
  .rv.in{opacity:1;transform:none}
  .bar .fill.rv{opacity:1;transform:scaleX(0);transition:transform 1.1s cubic-bezier(.2,.8,.2,1)}
  .bar .fill.rv.in{transform:scaleX(1)}
}

/* ===================== v3: immersive hero and full resume content ===================== */
.hero{background:#0c1a2c;color:#fff;padding-block:0}
.hero::before{display:none}
.hero-bg{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;filter:saturate(.85) brightness(.9)}
.hero-bg img:first-child{opacity:1}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:
  linear-gradient(90deg,rgba(9,20,36,.55),rgba(9,20,36,.92) 70%),
  linear-gradient(0deg,rgba(9,20,36,.95),transparent 45%)}
html[dir="ltr"] .hero::after{background:linear-gradient(270deg,rgba(9,20,36,.55),rgba(9,20,36,.92) 70%),linear-gradient(0deg,rgba(9,20,36,.95),transparent 45%)}
@media (prefers-reduced-motion:no-preference){
  .hero-bg img{animation:slide 28s linear infinite;animation-delay:calc(var(--k) * 7s)}
  .hero-bg img:first-child{opacity:0}
  @keyframes slide{0%{opacity:0;transform:scale(1.02)}4%{opacity:1}25%{opacity:1}30%{opacity:0;transform:scale(1.14)}100%{opacity:0}}
}
.hero > .wrap{padding-block:72px 48px}
.hero h1{color:#fff;font-size:clamp(32px,4.6vw,54px);line-height:1.3}
.hero .lead{color:#c9d5e4;font-size:18px}
.hero .kicker{color:#f2c94c}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.hero .btn.ghost:hover{background:rgba(255,255,255,.1)}
.hero .sheet{box-shadow:0 30px 60px -20px rgba(0,0,0,.6)}
@media (prefers-reduced-motion:no-preference){
  .hero-text > *{animation:up .9s cubic-bezier(.2,.8,.2,1) both}
  .hero-text > :nth-child(2){animation-delay:.12s}.hero-text > :nth-child(3){animation-delay:.24s}.hero-text > :nth-child(4){animation-delay:.36s}
  .hero .sheet{animation:up 1s cubic-bezier(.2,.8,.2,1) .2s both}
  @keyframes up{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
}
.hero-stats{border-top:1px solid rgba(255,255,255,.14);background:rgba(9,20,36,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.hero-stats .wrap,.stats.band .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-block:28px 32px}
.hero-stats .stat b{font-size:clamp(30px,3.6vw,44px)}
@media (max-width:820px){.hero-stats .wrap,.stats.band .wrap{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* intro */
.intro{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:48px;align-items:center}
.intro-text{display:flex;flex-direction:column;gap:16px;min-width:0}
.intro-text h2{font-size:clamp(24px,2.8vw,32px)}
.intro-text p{font-size:17px;color:var(--ink)}
.intro-figs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto auto;gap:12px}
.intro-figs img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);aspect-ratio:4/3}
.intro-figs img:first-child{grid-column:1/-1;aspect-ratio:16/8}
@media (max-width:860px){.intro{grid-template-columns:minmax(0,1fr)}}
.process-h{font-size:20px;margin-top:56px}
.small-h{font-size:16px;margin-top:8px}
.office-chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.office-chips li{padding:6px 14px;border-radius:999px;background:var(--sheet);border:1px solid var(--line);font-weight:600;font-size:14px;display:flex;align-items:center;gap:8px}
.office-chips li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--marking);box-shadow:0 0 0 3px color-mix(in srgb,var(--marking) 30%,transparent)}

/* cards for case studies */
.proj .sum{font-size:14.5px;color:var(--muted)}
.proj .meta{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 10px;font-size:13.5px;margin:0}
.proj .meta dt{color:var(--muted)}
.proj .meta dd{margin:0;font-weight:500}
.proj .more-ph{position:absolute;bottom:10px;inset-inline-end:10px;background:rgba(9,20,36,.75);color:#fff;font-size:12.5px;padding:2px 9px;border-radius:999px}
.proj details{margin-top:4px;border-top:1px dashed var(--line);padding-top:10px}
.proj summary{cursor:pointer;font-weight:600;color:var(--sign);font-size:14.5px;list-style:none;display:flex;align-items:center;gap:6px}
.proj summary::-webkit-details-marker{display:none}
.proj summary::after{content:"+";font-size:18px;line-height:1;transition:transform .2s}
.proj details[open] summary::after{transform:rotate(45deg)}
.proj .desc{display:flex;flex-direction:column;gap:8px;margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--ink);text-align:justify}
html[lang="en"] .proj .desc{text-align:start}
.proj .gal{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.proj .gal img{border-radius:4px;aspect-ratio:4/3;object-fit:cover;width:100%}
.projects .proj.case{align-self:start}
.filters button span{opacity:.6;font-weight:500;margin-inline-start:4px}

/* jump nav */
.jump{position:sticky;top:calc(env(safe-area-inset-top,0px) + 80px);z-index:40;background:color-mix(in srgb,var(--sheet) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.jump .wrap{display:flex;gap:6px;overflow-x:auto;padding-block:10px}
.jump a{flex:none;padding:6px 14px;border-radius:999px;text-decoration:none;font-weight:600;font-size:14.5px;color:var(--ink);border:1px solid var(--line);background:var(--sheet)}
.jump a:hover{border-color:var(--sign);color:var(--sign)}
@media (max-width:900px){.jump{top:calc(env(safe-area-inset-top,0px) + 72px)}}
[id]{scroll-margin-top:140px}

/* flagship list */
.flag{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.flag li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:18px;min-width:0}
.flag .fn{width:38px;height:38px;border-radius:50%;background:var(--asphalt);color:var(--marking);display:grid;place-items:center;font-weight:700;font-size:15px}
.flag h3{font-size:16.5px;margin-bottom:4px}
.flag p{font-size:14.5px;color:var(--ink)}
.flag .cl{display:block;font-size:13px;color:var(--muted);margin-top:6px}
@media (max-width:1000px){.flag{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.flag{grid-template-columns:minmax(0,1fr)}}

/* breakdowns */
.breakdowns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-bottom:36px}
.bd-box{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:18px;min-width:0}
.sec.alt .bd-box{background:var(--paper)}
.bd-box h3{font-size:17px}
.donut-wrap{display:grid;grid-template-columns:200px minmax(0,1fr);gap:24px;align-items:center}
.donut{width:200px;max-width:100%;height:auto;transform:rotate(-90deg)}
.donut .seg{fill:none;stroke-width:26}
.donut text{transform:rotate(90deg);transform-origin:100px 100px}
.donut .d-n{font-size:38px;font-weight:700;fill:var(--ink)}
.donut .d-l{font-size:14px;fill:var(--muted)}
@media (prefers-reduced-motion:no-preference){.donut .seg{animation:seg 1.4s cubic-bezier(.2,.8,.2,1) both}@keyframes seg{from{stroke-dasharray:0 600}}}
.legend{list-style:none;display:flex;flex-direction:column;gap:12px}
.legend li{display:grid;grid-template-columns:14px minmax(0,1fr) auto;gap:10px;align-items:center;font-size:14.5px}
.legend i{width:14px;height:14px;border-radius:3px}
.legend b{font-size:18px}
.bar{grid-template-columns:minmax(0,13em) minmax(0,1fr) 2.5em}
.bar .lbl{font-size:14px;line-height:1.5}
.bar .n{font-size:17px}
@media (max-width:980px){.breakdowns{grid-template-columns:minmax(0,1fr)}}
@media (max-width:520px){.donut-wrap{grid-template-columns:minmax(0,1fr);justify-items:center}}

/* contract search and tables */
.csearch{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-bottom:18px}
.csearch label{font-weight:600}
.csearch input{flex:1 1 260px;font:inherit;font-size:16px;padding:10px 14px;border-radius:var(--r);border:1px solid var(--line);background:var(--sheet);color:var(--ink);min-height:46px}
.csearch input:focus{outline:2px solid var(--sign);outline-offset:0}
.cs-status{flex-basis:100%;color:var(--muted);font-size:14px;min-height:1.4em}
.cgroups{display:flex;flex-direction:column;gap:12px}
.cgroup{border:1px solid var(--line);border-radius:var(--r);background:var(--sheet);overflow:hidden}
.cgroup summary{cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;font-weight:700;list-style:none;border-inline-start:6px solid var(--c)}
.cgroup summary::-webkit-details-marker{display:none}
.cgroup .cg-n{color:var(--c);white-space:nowrap;font-size:15px}
.tbl-wrap{overflow-x:auto}
.cgroup table{width:100%;border-collapse:collapse;font-size:14.5px}
.cgroup th{background:color-mix(in srgb,var(--c) 12%,var(--sheet));text-align:start;padding:10px 14px;font-weight:700;white-space:nowrap}
.cgroup td{padding:10px 14px;border-top:1px solid var(--line);vertical-align:top}
.cgroup td:first-child{color:var(--muted);width:3em}
.cgroup td:last-child{color:var(--muted);width:32%}
.cgroup tr[hidden]{display:none}
mark{background:color-mix(in srgb,var(--marking) 45%,transparent);color:inherit;border-radius:2px}

/* commendations */
.commend{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:28px;align-items:start}
.quotes{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.quotes li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 16px;display:flex;flex-direction:column;gap:6px;position:relative}
.quotes li::before{content:"”";position:absolute;top:2px;inset-inline-end:14px;font-size:56px;line-height:1;color:var(--sign);opacity:.18;font-family:Georgia,serif}
.quotes p{font-size:15px;font-weight:500}
.quotes .who{font-size:13.5px;font-weight:700;color:var(--sign)}
.quotes .what{font-size:13px;color:var(--muted)}
.awards{margin:0;position:sticky;top:120px}
.awards img{border-radius:var(--r);box-shadow:0 20px 40px -24px rgba(14,36,64,.5)}
@media (max-width:1000px){.commend{grid-template-columns:minmax(0,1fr)}.awards{position:static;max-width:520px}}
@media (max-width:640px){.quotes{grid-template-columns:minmax(0,1fr)}}

/* grade medals */
.medals{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:28px}
.medal{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:24px 14px;min-width:0}
.medal .disc{width:96px;height:96px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(circle at 35% 30%,#ffe08a,#e3a800 55%,#b07c00);color:#3b2a00;box-shadow:inset 0 0 0 5px rgba(255,255,255,.35),0 10px 24px -10px rgba(176,124,0,.7);margin-bottom:6px}
.medal .disc small{font-size:13px;font-weight:700}
.medal .disc b{font-size:40px;line-height:1}
.medal .nm{font-weight:700;font-size:16px}
.medal .org{font-size:13px;color:var(--muted)}
@media (max-width:860px){.medals{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* about */
.about-intro{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:48px;align-items:start}
.about-intro .prose{max-width:none}
.about-intro .prose h2{font-size:clamp(24px,2.8vw,32px)}
.about-intro .prose p{text-align:justify}
html[lang="en"] .about-intro .prose p{text-align:start}
.profile{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:22px;position:sticky;top:110px}
.profile h3{font-size:17px;margin-bottom:12px}
.profile dl{display:grid;grid-template-columns:auto minmax(0,1fr);margin:0;font-size:14.5px}
.profile dt,.profile dd{margin:0;padding:8px 0;border-bottom:1px dashed var(--line)}
.profile dt{color:var(--muted);padding-inline-end:14px}
.profile dd{font-weight:600}
@media (max-width:900px){.about-intro{grid-template-columns:minmax(0,1fr)}.profile{position:static}}
.stats.band .stat b{font-size:clamp(30px,3.6vw,46px)}
.timeline{list-style:none;position:relative;display:flex;flex-direction:column;gap:22px;padding-inline-start:32px}
.timeline::before{content:"";position:absolute;inset-block:6px;inset-inline-start:9px;width:4px;border-radius:2px;background:repeating-linear-gradient(180deg,var(--marking) 0 14px,transparent 14px 22px),var(--asphalt)}
.timeline li{position:relative;display:grid;grid-template-columns:6.5em minmax(0,1fr);gap:16px;align-items:start}
.timeline li::before{content:"";position:absolute;inset-inline-start:-30px;top:8px;width:18px;height:18px;border-radius:50%;background:var(--sheet);border:4px solid var(--sign)}
.timeline .ty{font-size:24px;font-weight:700;color:var(--sign);line-height:1.3}
.timeline h3{font-size:18px}
.timeline p{color:var(--muted)}
.timeline li:last-child::before{background:var(--marking);border-color:var(--marking)}
@media (max-width:560px){.timeline li{grid-template-columns:minmax(0,1fr);gap:2px}}
.why.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.levers{margin-top:28px}
.offices{list-style:none;display:flex;flex-direction:column;gap:10px}
.offices.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.offices li{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:2px;font-size:14.5px}
.sec.alt .offices li{background:var(--paper)}
.offices b{font-size:15.5px}
.offices span{color:var(--muted)}
.offices .tel{color:var(--ink);font-weight:600;align-self:flex-start}
.certs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.certs figure{margin:0;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:14px;display:flex;flex-direction:column;gap:10px}
.sec.alt .certs figure{background:var(--paper)}
.certs img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:top;border-radius:3px;border:1px solid var(--line);transition:transform .3s}
.certs figure:hover img{transform:scale(1.02)}
.certs figcaption{font-size:14px;font-weight:600}
@media (max-width:760px){.certs{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* services */
.svc-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}
.svc-split .h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:20px}
.svc-list{list-style:none;display:flex;flex-direction:column;gap:10px;counter-reset:s}
.svc-list li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;padding-inline-start:52px;position:relative;font-weight:500}
.svc-list li::before{content:"";position:absolute;inset-inline-start:18px;top:50%;width:18px;height:4px;margin-top:-2px;background:repeating-linear-gradient(90deg,var(--marking) 0 6px,transparent 6px 9px)}
.chips.big .chip{font-size:15px;padding:8px 16px}
.svc-img{margin-top:24px;border-radius:var(--r);aspect-ratio:16/9;object-fit:cover;width:100%}
@media (max-width:860px){.svc-split{grid-template-columns:minmax(0,1fr)}}

/* ===================== v4: home hero — topo field, drawing sheet and photo deck ===================== */
.hero{background:radial-gradient(120% 90% at 85% 10%,#1d4f8f 0%,#0f2747 45%,#0a1628 100%);color:#fff}
.hero::after{display:none}
.hero-bg{display:none}
.hero-topo{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.hero-topo .topo path{fill:none;stroke:#7fb0ff;stroke-width:1;opacity:.16}
.hero-topo .topo-road{fill:none;stroke:rgba(255,255,255,.07);stroke-width:46;stroke-linecap:round}
.hero-topo .topo-road-c{fill:none;stroke:#f2c94c;stroke-width:2.5;stroke-dasharray:22 18;opacity:.55}
@media (prefers-reduced-motion:no-preference){
  .hero-topo .topo{animation:drift 40s ease-in-out infinite alternate}
  @keyframes drift{from{transform:translate(0,0)}to{transform:translate(-60px,18px)}}
  .hero-topo .topo-road-c{animation:march2 2.4s linear infinite}
  @keyframes march2{to{stroke-dashoffset:-80}}
}
.hero > .wrap{padding-block:64px 88px;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.25;letter-spacing:-.01em}
html[lang="en"] .hero h1{line-height:1.1}
.hero .lead{font-size:19px;color:#d3deeb;max-width:32em}
.hero .kicker{color:#f2c94c}
.hero .sheet{color:var(--ink);margin:0}

.hero-visual{position:relative;min-width:0;padding-bottom:12%}
.hero-visual .sheet{transform:rotate(-1.5deg)}
.deck{position:absolute;left:-5%;bottom:-4%;width:56%;aspect-ratio:3/2;max-width:100%;border:8px solid #fff;border-radius:4px;background:#fff;
  box-shadow:0 28px 50px -18px rgba(0,0,0,.65);transform:rotate(2.5deg);overflow:hidden;z-index:2}
.deck figure{position:absolute;inset:0;margin:0;opacity:0}
.deck figure:first-child{opacity:1}
.deck img{width:100%;height:100%;object-fit:cover}
.deck figcaption{position:absolute;inset:auto 0 0 0;padding:26px 12px 9px;font-size:13px;font-weight:600;line-height:1.5;color:#fff;
  background:linear-gradient(transparent,rgba(5,12,22,.9))}
.deck figcaption span{display:block;font-size:11px;font-weight:500;color:#f2c94c}
@media (prefers-reduced-motion:no-preference){
  .deck figure,.deck figure:first-child{opacity:0;animation:deck calc(var(--n) * 4.5s) linear infinite;animation-delay:calc(var(--k) * 4.5s)}
  .deck figure:first-child{animation-delay:0s;opacity:1}
  .deck img{animation:kb calc(var(--n) * 4.5s) linear infinite;animation-delay:inherit}
  @keyframes deck{0%{opacity:0}3%{opacity:1}16.6%{opacity:1}20%{opacity:0}100%{opacity:0}}
  @keyframes kb{0%{transform:scale(1)}20%{transform:scale(1.09)}100%{transform:scale(1.09)}}
  .deck{animation:deckin 1.1s cubic-bezier(.2,.8,.2,1) .5s both}
  @keyframes deckin{from{opacity:0;transform:translateY(40px) rotate(8deg)}to{opacity:1;transform:rotate(2.5deg)}}
}
.hero-stats{position:relative;background:rgba(6,14,26,.55)}
.hero-stats .stat b{display:flex;align-items:baseline;gap:2px}
.hero-stats .stat b small{font-size:.55em;color:#f2c94c;margin:0}
@media (max-width:900px){
  .hero > .wrap{grid-template-columns:minmax(0,1fr);gap:40px;padding-block:44px 64px}
  .hero-visual{padding-bottom:0}
  .deck{position:relative;left:auto;bottom:auto;width:72%;margin:-22% 0 0 auto;margin-inline-start:auto}
}
@media (max-width:560px){.deck{width:82%;margin-top:-10%}.hero .lead{font-size:17px}}

/* home: history strip on a road */
.yearband{background:var(--asphalt);color:#fff;padding-block:56px 48px;overflow:hidden}
.yearband h2{color:#fff}
.yearband .more{color:#f2c94c}
.yearband .sec-head{margin-bottom:12px}
.yearline{list-style:none;display:grid;grid-template-columns:repeat(9,minmax(0,1fr));row-gap:28px;padding-top:12px}
.yearline li{position:relative;padding-top:50px;padding-inline-end:14px;display:flex;flex-direction:column;gap:4px;min-width:0}
.yearline li::after{content:"";position:absolute;top:12px;inset-inline:0;height:16px;background:#26313f;
  background-image:repeating-linear-gradient(90deg,#f2c94c 0 14px,transparent 14px 24px);background-size:100% 2px;background-position:0 7px;background-repeat:no-repeat}
.yearline li::before{content:"";position:absolute;top:6px;inset-inline-start:0;width:18px;height:18px;border-radius:50%;background:#f2c94c;border:5px solid var(--asphalt);box-sizing:content-box;z-index:1}
.yearline .yy{font-size:26px;font-weight:700;color:#fff;line-height:1.2}
.yearline h3{font-size:14px;font-weight:500;color:#b9c6d6;line-height:1.6}
@media (max-width:1100px){.yearline{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media (max-width:640px){.yearline{grid-template-columns:repeat(3,minmax(0,1fr))}.yearline .yy{font-size:22px}}
.timeline h3{font-size:19px}
.timeline p{font-size:16px;color:var(--ink);opacity:.85;max-width:46em}
#history .sec-head p{max-width:52em;font-size:17px}