/* ============================================================
   PGKL — corporate site stylesheet
   Design system: black canvas, white uppercase display type,
   tricolour accent (never a fill), 0px corners.
   ============================================================ */

:root{
  --canvas:#000000;
  --soft:#0d0d0d;
  --card:#141414;
  --card-2:#1a1a1a;
  --elev:#262626;
  --hair:#2a2a2a;
  --hair-bright:#3c3c3c;
  --ink:#ffffff;
  --body-strong:#e6e6e6;
  --body:#bbbbbb;
  --mute:#7e7e7e;
  --blue-l:#0066b1;
  --blue-d:#1c69d4;
  --red:#e22718;
  --maxw:1240px;
  --gutter:clamp(20px,5vw,64px);
  --display:"Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --text:"Helvetica Neue", Arial, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--canvas);
  color:var(--body);
  font-family:var(--text);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---------- tricolour helpers ---------- */
.tricolor{display:flex;height:4px;width:var(--w,160px)}
.tricolor i{flex:1}
.tricolor i:nth-child(1){background:var(--blue-l)}
.tricolor i:nth-child(2){background:var(--blue-d)}
.tricolor i:nth-child(3){background:var(--red)}

/* ---------- type ---------- */
.display{
  font-family:var(--display);
  font-weight:700;
  color:var(--ink);
  text-transform:uppercase;
  letter-spacing:.5px;
  line-height:1.02;
}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:2.2px;
  text-transform:uppercase;color:var(--mute);
}
h1.display{font-size:clamp(38px,7vw,88px)}
h2.display{font-size:clamp(30px,4.4vw,52px)}
h3.display{font-size:clamp(20px,2.4vw,30px)}
.lead{font-size:clamp(16px,1.5vw,19px);color:var(--body);line-height:1.55;max-width:60ch}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
section{padding:clamp(64px,9vw,120px) 0;position:relative}
.section-head{margin-bottom:clamp(36px,5vw,60px)}
.section-head .tricolor{margin:14px 0 18px}

/* ---------- nav ---------- */
header.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(0,0,0,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hair);
  transition:background .3s;
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{font-family:var(--display);font-weight:700;font-size:26px;letter-spacing:1px;color:var(--ink)}
.brand .tricolor{--w:30px;height:3px}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--body);padding:10px 14px;position:relative;transition:color .2s;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--red);
}
.nav-cta{
  border:1px solid var(--hair-bright);color:var(--ink)!important;
  padding:10px 18px!important;transition:background .2s,color .2s;
}
.nav-cta:hover{background:var(--ink);color:#000!important}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);display:block;transition:.3s}

/* ---------- hero ---------- */
.hero{
  min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;
  padding-top:80px;
}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.55}
.hero .wrap{position:relative;z-index:2}
.hero .tricolor{--w:220px;margin-bottom:26px}
.hero h1{max-width:16ch;margin-bottom:22px}
.hero .lead{margin-bottom:36px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(120% 90% at 80% 10%, rgba(28,105,212,.10), transparent 55%),
             radial-gradient(80% 70% at 15% 90%, rgba(226,39,24,.06), transparent 60%);
  pointer-events:none;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  padding:15px 26px;border:1px solid transparent;cursor:pointer;transition:.2s;
}
.btn-primary{background:var(--ink);color:#000}
.btn-primary:hover{background:#d6d6d6}
.btn-ghost{border-color:var(--hair-bright);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(255,255,255,.04)}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- cards ---------- */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--card);border:1px solid var(--hair);
  padding:28px;position:relative;transition:border-color .25s,transform .25s,background .25s;
}
.card .top{position:absolute;top:0;left:0;height:3px;width:64px;background:var(--blue-d)}
.card.red .top{background:var(--red)}
.card:hover{border-color:var(--hair-bright);transform:translateY(-3px);background:var(--card-2)}
.card .ic{width:40px;height:40px;margin-bottom:18px;color:var(--ink)}
.card .ic svg{width:100%;height:100%;stroke:var(--ink);stroke-width:1.5;fill:none}
.card h3{margin-bottom:10px}
.card p{font-size:14px;color:var(--body);line-height:1.5}
.card .kicker{font-size:11px;font-weight:700;letter-spacing:1.6px;color:var(--mute);text-transform:uppercase;margin-bottom:8px}

/* stat card */
.stat{background:var(--card);border:1px solid var(--hair);padding:28px;position:relative}
.stat .top{position:absolute;top:0;left:0;height:3px;width:100%;background:var(--blue-d)}
.stat.red .top{background:var(--red)}
.stat .num{font-family:var(--display);font-weight:700;font-size:clamp(40px,5vw,56px);color:var(--ink);line-height:1}
.stat .lab{font-size:12px;font-weight:700;letter-spacing:1.5px;color:var(--body-strong);text-transform:uppercase;margin:14px 0 8px}
.stat .sub{font-size:13px;color:var(--body)}

/* list row */
.row{
  display:flex;gap:20px;align-items:flex-start;
  border:1px solid var(--hair);border-left:3px solid var(--blue-d);
  background:var(--card);padding:22px 26px;transition:.25s;
}
.row.red{border-left-color:var(--red)}
.row:hover{background:var(--card-2);border-color:var(--hair-bright);border-left-color:var(--blue-d)}
.row.red:hover{border-left-color:var(--red)}
.row .ic{width:34px;height:34px;flex:none;color:var(--ink)}
.row .ic svg{width:100%;height:100%;stroke:var(--ink);stroke-width:1.5;fill:none}
.row h3{font-size:17px;margin-bottom:6px}
.row p{font-size:14px;color:var(--body)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .hero canvas{display:none}
}

/* ---------- band (alt background) ---------- */
.band{background:var(--soft);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}

/* ---------- CTA strip ---------- */
.cta-strip{position:relative;overflow:hidden}
.cta-strip .tricolor{--w:200px;margin-bottom:24px}
.cta-strip h2{margin-bottom:16px;max-width:18ch}

/* ---------- footer ---------- */
footer{background:var(--soft);border-top:1px solid var(--hair);padding:64px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:44px}
footer h4{font-size:12px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--mute);margin-bottom:16px}
footer .brand .logo{font-size:30px}
footer ul{list-style:none}
footer li{margin-bottom:10px}
footer li a{font-size:14px;color:var(--body);transition:color .2s}
footer li a:hover{color:var(--ink)}
.foot-bar{border-top:1px solid var(--hair);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.foot-bar span{font-size:12px;color:var(--mute);letter-spacing:.4px}
.foot-tri{--w:120px}

/* ---------- misc ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{border:1px solid var(--hair);background:var(--card);padding:12px 18px;font-family:var(--display);font-weight:700;letter-spacing:.6px;color:var(--ink);font-size:15px;text-transform:uppercase;transition:.2s}
.chip:hover{border-color:var(--hair-bright);background:var(--card-2)}
.pagehead{padding-top:140px;padding-bottom:20px}
.pagehead h1{max-width:20ch}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:start}
.panel{background:var(--card);border:1px solid var(--hair);padding:clamp(28px,4vw,44px);position:relative}
.panel .tricolor{--w:100%;margin-bottom:22px}
.quote{font-family:var(--display);font-weight:700;text-transform:uppercase;color:var(--ink);font-size:clamp(22px,2.6vw,32px);line-height:1.1}

/* form */
.field{margin-bottom:18px}
.field label{display:block;font-size:12px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--mute);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;background:var(--canvas);border:1px solid var(--hair-bright);color:var(--ink);
  padding:14px 16px;font-family:var(--text);font-size:15px;transition:border-color .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue-d)}
.field textarea{min-height:130px;resize:vertical}

/* contact info list */
.cinfo{display:flex;flex-direction:column;gap:2px}
.cinfo .item{border-bottom:1px solid var(--hair);padding:22px 0}
.cinfo .item:first-child{border-top:1px solid var(--hair)}
.cinfo .k{font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--mute);margin-bottom:6px}
.cinfo .v{color:var(--body-strong);font-size:15px;line-height:1.5}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav-links{
    position:fixed;top:61px;left:0;right:0;
    background:rgba(0,0,0,.96);backdrop-filter:blur(14px);
    flex-direction:column;gap:0;padding:12px var(--gutter) 24px;
    border-bottom:1px solid var(--hair);
    transform:translateY(-120%);transition:transform .3s;
  }
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 4px;width:100%;border-bottom:1px solid var(--hair)}
  .nav-links a.active::after{display:none}
  .nav-cta{border:1px solid var(--hair-bright);text-align:center;margin-top:12px}
  .burger{display:flex}
  .g4,.g3,.g2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  h1.display{font-size:clamp(34px,11vw,56px)}
}

/* ============================================================
   MOTION LAYER — "noticeable but corporate"
   ============================================================ */

/* logo in nav + footer */
.brand .logo-img{height:26px;width:auto;display:block}
footer .brand .logo-img{height:34px}
@media (max-width:720px){ .brand .logo-img{height:22px} }

/* ---- page-load intro ---- */
html.intro body{overflow:hidden}
.intro-veil{
  position:fixed;inset:0;z-index:200;background:#000;
  display:flex;align-items:center;justify-content:center;
  transition:opacity .6s ease .15s, visibility .6s ease .15s;
}
.intro-veil .mark{
  width:min(340px,60vw);opacity:0;transform:translateY(8px) scale(.98);
  filter:drop-shadow(0 0 0 rgba(255,255,255,0));
  animation:markIn 1.3s cubic-bezier(.2,.7,.2,1) forwards .2s;
  position:relative;
}
.intro-veil .mark::after{
  /* sheen sweep across logo */
  content:"";position:absolute;top:-10%;left:-60%;width:40%;height:120%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.85),transparent);
  transform:skewX(-18deg);mix-blend-mode:overlay;opacity:0;
  animation:sheen 1.1s ease .9s forwards, sheen 1.1s ease 2.0s forwards;
}
.intro-veil .tri{
  position:absolute;bottom:calc(50% - 90px);left:50%;transform:translateX(-50%);
  height:4px;width:0;overflow:hidden;display:flex;
  animation:triGrow .9s cubic-bezier(.2,.7,.2,1) forwards .95s;
}
.intro-veil .tri i{width:80px;height:100%}
.intro-veil .tri i:nth-child(1){background:var(--blue-l)}
.intro-veil .tri i:nth-child(2){background:var(--blue-d)}
.intro-veil .tri i:nth-child(3){background:var(--red)}
html.done .intro-veil{opacity:0;visibility:hidden}
@keyframes markIn{to{opacity:1;transform:none}}
@keyframes triGrow{to{width:240px}}
@keyframes sheen{0%{left:-60%;opacity:0}20%{opacity:1}100%{left:120%;opacity:0}}

/* hero content staged entrance (after veil) */
.hero .wrap>*{opacity:0;transform:translateY(22px)}
html.done .hero .wrap>*{animation:heroUp .8s cubic-bezier(.2,.7,.2,1) forwards}
html.done .hero .wrap>*:nth-child(1){animation-delay:.05s}
html.done .hero .wrap>*:nth-child(2){animation-delay:.15s}
html.done .hero .wrap>*:nth-child(3){animation-delay:.27s}
html.done .hero .wrap>*:nth-child(4){animation-delay:.39s}
@keyframes heroUp{to{opacity:1;transform:none}}
/* pages without the veil (services/about/contact) still animate heads in */
html.done .pagehead .wrap>*{opacity:0;transform:translateY(20px);animation:heroUp .7s cubic-bezier(.2,.7,.2,1) forwards}
html.done .pagehead .wrap>*:nth-child(2){animation-delay:.08s}
html.done .pagehead .wrap>*:nth-child(3){animation-delay:.16s}
html.done .pagehead .wrap>*:nth-child(4){animation-delay:.24s}

/* ---- headline sheen on the hero H1 ---- */
.hero h1{position:relative;overflow:hidden}
.hero h1::after{
  content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.18),transparent);
  transform:skewX(-20deg);pointer-events:none;
}
html.done .hero h1::after{animation:sheen2 1.4s ease 1.1s}
@keyframes sheen2{0%{left:-70%}100%{left:140%}}

/* ---- ambient glow behind hero ---- */
.hero .glow{
  position:absolute;z-index:1;width:60vw;height:60vw;max-width:760px;max-height:760px;
  right:-10%;top:-14%;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(28,105,212,.20),transparent 62%);
  filter:blur(10px);animation:breathe 9s ease-in-out infinite;
}
.hero .glow.red{right:auto;left:-16%;top:auto;bottom:-24%;width:44vw;height:44vw;
  background:radial-gradient(circle,rgba(226,39,24,.12),transparent 62%);animation-delay:-4s}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.12);opacity:1}}

/* ---- animated tricolour (accent lines subtly shift) ---- */
.tricolor.live i{background-size:200% 100%;animation:flow 6s linear infinite}
.tricolor.live i:nth-child(1){background-image:linear-gradient(90deg,var(--blue-l),#3a8fd6,var(--blue-l))}
.tricolor.live i:nth-child(2){background-image:linear-gradient(90deg,var(--blue-d),#4a86e0,var(--blue-d))}
.tricolor.live i:nth-child(3){background-image:linear-gradient(90deg,var(--red),#ff5a48,var(--red))}
@keyframes flow{to{background-position:200% 0}}

/* ---- card hover: sharper lift + glow edge ---- */
.card{will-change:transform}
.card::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  box-shadow:0 20px 50px -20px rgba(28,105,212,.35);
}
.card:hover::after{opacity:1}
.card.red:hover::after{box-shadow:0 20px 50px -20px rgba(226,39,24,.35)}
.card:hover .top{width:100%!important;transition:width .35s cubic-bezier(.2,.7,.2,1)}

/* stat number count-up baseline */
.stat .num[data-count]{font-variant-numeric:tabular-nums}

/* button shine */
.btn-primary{position:relative;overflow:hidden}
.btn-primary::before{
  content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-20deg);transition:left .5s ease}
.btn-primary:hover::before{left:130%}

/* nav shrink on scroll */
header.nav.scrolled{background:rgba(0,0,0,.9)}
header.nav.scrolled .nav-inner{padding-top:9px;padding-bottom:9px;transition:padding .3s}

@media (prefers-reduced-motion:reduce){
  .intro-veil{display:none!important}
  .hero .wrap>*,.pagehead .wrap>*{opacity:1!important;transform:none!important;animation:none!important}
  .hero .glow{animation:none}
  .tricolor.live i{animation:none}
  .hero h1::after,.intro-veil .mark::after{display:none}
}

/* anchor offset so #brief clears the fixed nav */
#brief{scroll-margin-top:100px}

/* ---- language switcher ---- */
.lang{display:flex;align-items:center;gap:2px;margin-left:8px;border:1px solid var(--hair-bright);padding:2px}
.lang a{
  font-size:11.5px;font-weight:700;letter-spacing:1px;text-transform:uppercase;
  color:var(--mute);padding:6px 10px!important;transition:.2s;
}
.lang a:hover{color:var(--ink)}
.lang a.on{background:var(--ink);color:#000}
.lang a.on::after{display:none}
@media (max-width:720px){
  .lang{margin:12px 0 0;justify-content:center;width:100%}
  .lang a{width:auto;border-bottom:0!important}
}
/* Korean pages: display font falls back to a clean gothic; keep body legible */
html[lang="ko"] .display{font-family:"Malgun Gothic","Apple SD Gothic Neo","Noto Sans KR",var(--display);letter-spacing:0}
html[lang="ko"] .eyebrow{letter-spacing:1.4px}
html[lang="ko"] body{font-family:"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",var(--text)}
html[lang="ko"] .intro-veil .mark{--k:1}