/* ============================================================
   INSIGHT CONSULTING ENGINEERS — design tokens
   ============================================================ */
:root{
  --ink:        #14283B;
  --ink-70:     rgba(20,40,59,0.72);
  --ink-45:     rgba(20,40,59,0.45);
  --paper:      #EFF1EC;
  --paper-2:    #E6E9E1;
  --paper-3:    #F7F8F5;
  --line:       #C6CBBF;
  --line-strong:#A7AE9D;
  --steel:      #3E6E8E;
  --signal:     #D9531E;
  --white:      #FFFFFF;

  --display: 'Big Shoulders Display', sans-serif;
  --body:    'IBM Plex Sans', sans-serif;
  --mono:    'IBM Plex Mono', monospace;

  --max: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:0.96;margin:0;letter-spacing:0.005em;text-transform:uppercase;}
p{margin:0;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}

/* ---------- eyebrow / mono labels ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--steel);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--signal);
  display:inline-block;
}

/* ============================================================
   NAV
   ============================================================ */
.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:18px 0;
  transition:background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease;
}
.site-nav .wrap{display:flex; align-items:center; justify-content:space-between;}
.site-nav.scrolled{
  background:rgba(239,241,236,0.94);
  backdrop-filter:blur(6px);
  padding:10px 0;
  box-shadow:0 1px 0 var(--line);
}
.brand{display:flex; align-items:center; gap:14px;}
.brand img{height:58px; width:auto;}
.brand-text{font-family:var(--display); font-weight:800; font-size:19px; letter-spacing:0.03em; text-transform:uppercase; line-height:1;}
.brand-text span{display:block; font-family:var(--mono); font-weight:400; font-size:9px; letter-spacing:0.16em; color:var(--ink-70); text-transform:uppercase; margin-top:3px;}

.nav-right{display:flex; align-items:center; gap:34px;}
.nav-links{display:flex; gap:30px;}
.nav-links a{
  font-family:var(--mono); font-size:13px; letter-spacing:0.06em; text-transform:uppercase;
  position:relative; padding:4px 0; color:var(--ink);
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:1px; width:0;
  background:var(--signal); transition:width 0.25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{width:100%;}
.nav-links a.active{color:var(--signal);}

.lang-toggle{
  font-family:var(--mono); font-size:12px; letter-spacing:0.08em;
  border:1px solid var(--line-strong); border-radius:999px;
  display:flex; overflow:hidden;
}
.lang-toggle a{
  font-family:var(--mono); font-size:12px; letter-spacing:0.08em;
  padding:6px 12px; color:var(--ink-70);
}
.lang-toggle a:hover{color:var(--ink);}
.lang-toggle a[aria-current="true"]{background:var(--ink); color:var(--paper);}

.nav-toggle{display:none; background:none; border:none; cursor:pointer; padding:4px;}
.nav-toggle span{display:block; width:22px; height:2px; background:var(--ink); margin:5px 0;}

@media (max-width:860px){
  .nav-links{
    position:fixed; top:0; right:0; height:100vh; width:78vw; max-width:320px;
    background:var(--ink); color:var(--paper); flex-direction:column; gap:0;
    padding:100px 32px 32px; transform:translateX(100%); transition:transform 0.4s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{color:var(--paper); padding:14px 0; border-bottom:1px solid rgba(239,241,236,0.15); font-size:15px;}
  .nav-links a::after{display:none;}
  .nav-toggle{display:block;}
  .nav-right{gap:14px;}
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; min-height:92vh; display:flex; align-items:flex-end;
  overflow:hidden; color:var(--paper);
}
.hero-media{position:absolute; inset:0; z-index:0;}
.hero-media img{width:100%; height:100%; object-fit:cover; object-position:center 30%;}
.hero-scrim{
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(180deg, rgba(20,40,59,0.55) 0%, rgba(20,40,59,0.35) 35%, rgba(20,40,59,0.92) 100%);
}
.hero-inner{position:relative; z-index:2; width:100%; padding-bottom:86px;}
.hero .eyebrow{color:#B9C9D4; margin-bottom:22px;}
.hero .eyebrow::before{background:var(--signal);}
.hero h1{
  font-size:clamp(42px, 8vw, 96px);
  color:var(--white);
  max-width:14ch;
  opacity:0; transform:translateY(24px);
  animation:rise 0.9s ease 0.15s forwards;
}
.hero-line{
  width:0; height:2px; background:var(--signal); margin:26px 0;
  animation:draw 1s ease 0.6s forwards;
}
.hero-sub{
  font-family:var(--mono); font-size:15px; color:#D7DFE1; max-width:46ch;
  opacity:0; animation:rise 0.9s ease 0.5s forwards;
}
.hero-cta{
  display:inline-flex; align-items:center; gap:10px; margin-top:36px;
  font-family:var(--mono); font-size:13px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--white); border:1px solid rgba(255,255,255,0.5); padding:14px 22px; border-radius:2px;
  opacity:0; animation:rise 0.9s ease 0.75s forwards;
  transition:background 0.25s ease, border-color 0.25s ease;
}
.hero-cta:hover{background:var(--signal); border-color:var(--signal);}

@keyframes rise{to{opacity:1; transform:translateY(0);}}
@keyframes draw{to{width:72px;}}

/* small page header for interior pages (no photo) */
.page-head{
  padding:170px 0 70px; border-bottom:1px solid var(--line);
}
.page-head h1{font-size:clamp(38px,6vw,64px); max-width:16ch;}
.page-head .eyebrow{margin-bottom:20px;}
.page-head p{font-family:var(--mono); font-size:14px; color:var(--ink-70); max-width:56ch; margin-top:20px;}

/* ============================================================
   TITLE-BLOCK STRIP (signature element)
   ============================================================ */
.titleblock{
  border-top:1px solid var(--line-strong);
  border-bottom:1px solid var(--line-strong);
  background:var(--paper-3);
}
.titleblock .wrap{
  display:grid; grid-template-columns:repeat(4,1fr);
}
.tb-cell{
  padding:22px 26px; border-left:1px solid var(--line);
}
.tb-cell:first-child{border-left:none;}
.tb-label{font-family:var(--mono); font-size:10px; letter-spacing:0.12em; text-transform:uppercase; color:var(--ink-45); margin-bottom:6px;}
.tb-value{font-family:var(--mono); font-size:13.5px; color:var(--ink); letter-spacing:0.01em;}
@media (max-width:760px){
  .titleblock .wrap{grid-template-columns:repeat(2,1fr);}
  .tb-cell:nth-child(3){border-left:none;}
}

/* ============================================================
   SECTIONS
   ============================================================ */
section{padding:96px 0;}
.section-tight{padding:70px 0;}
.reveal{opacity:0; transform:translateY(22px); transition:opacity 0.7s ease, transform 0.7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

.intro-grid{display:grid; grid-template-columns:1.1fr 1fr; gap:70px; align-items:start;}
.intro-grid h2{font-size:clamp(28px,4vw,42px); max-width:14ch;}
.intro-grid .body-copy{font-size:16.5px; color:var(--ink-70); margin-top:22px;}
@media (max-width:820px){.intro-grid{grid-template-columns:1fr; gap:34px;}}

/* service / discipline cards */
.disc-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-strong); border:1px solid var(--line-strong); margin-top:50px;}
.disc-card{background:var(--paper); padding:36px 30px; display:flex; flex-direction:column; min-height:230px;}
.disc-code{
  font-family:var(--mono); font-size:13px; color:var(--signal); letter-spacing:0.08em;
  border:1px solid var(--signal); width:fit-content; padding:3px 9px; margin-bottom:22px;
}
.disc-card h3{font-size:24px; margin-bottom:14px; text-transform:none;}
.disc-card p{color:var(--ink-70); font-size:14.5px; flex:1;}
.disc-card .go{font-family:var(--mono); font-size:12px; letter-spacing:0.08em; text-transform:uppercase; margin-top:20px; color:var(--steel); display:inline-flex; align-items:center; gap:6px;}
.disc-card .go::after{content:"→"; transition:transform 0.2s ease;}
.disc-card:hover .go::after{transform:translateX(4px);}
@media (max-width:820px){.disc-grid{grid-template-columns:1fr;}}
.disc-grid.cols-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:820px){.disc-grid.cols-2{grid-template-columns:1fr;}}

/* feature break image */
.feature-break{position:relative; height:60vh; min-height:420px; overflow:hidden;}
.feature-break img{width:100%; height:100%; object-fit:cover;}
.feature-break-caption{
  position:absolute; left:0; bottom:0; right:0;
  background:linear-gradient(0deg, rgba(20,40,59,0.85), transparent);
  color:var(--paper); padding:34px 28px;
  font-family:var(--mono); font-size:13px; letter-spacing:0.04em;
}
.feature-break-caption strong{color:var(--white); font-family:var(--body); font-weight:600; display:block; margin-bottom:4px; font-size:15px;}

/* two column with rule */
.split{display:grid; grid-template-columns:1fr 1fr; gap:0;}
.split > div{padding:0 46px;}
.split > div:first-child{padding-left:0; border-right:1px solid var(--line);}
.split > div:last-child{padding-right:0;}
@media (max-width:820px){
  .split{grid-template-columns:1fr; gap:38px;}
  .split > div:first-child{border-right:none; border-bottom:1px solid var(--line); padding-bottom:38px;}
  .split > div{padding:0;}
}

/* values list */
.value-list{margin-top:14px;}
.value-item{display:flex; gap:22px; padding:26px 0; border-top:1px solid var(--line);}
.value-item:last-child{border-bottom:1px solid var(--line);}
.value-num{font-family:var(--mono); font-size:13px; color:var(--signal); padding-top:3px; min-width:34px;}
.value-item h3{font-size:19px; text-transform:none; margin-bottom:6px;}
.value-item p{color:var(--ink-70); font-size:14.5px; max-width:60ch;}

/* service detail (services page) */
.service-detail{padding:64px 0; border-top:1px solid var(--line);}
.service-detail:last-child{border-bottom:1px solid var(--line);}
.service-head{display:flex; align-items:baseline; gap:22px; flex-wrap:wrap;}
.service-head h2{font-size:clamp(26px,4vw,38px); text-transform:none;}
.service-body{display:grid; grid-template-columns:1.1fr 1fr; gap:56px; margin-top:26px;}
.service-body p{color:var(--ink-70); font-size:15.5px;}
.service-list{margin-top:4px;}
.service-list li{
  font-family:var(--mono); font-size:13.5px; color:var(--ink);
  padding:12px 0; border-top:1px solid var(--line); display:flex; gap:10px;
}
.service-list li:last-child{border-bottom:1px solid var(--line);}
.service-list li::before{content:"—"; color:var(--signal);}
@media (max-width:820px){.service-body{grid-template-columns:1fr;}}

/* contact page */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:70px;}
.contact-block{margin-bottom:30px;}
.contact-block .tb-label{margin-bottom:8px;}
.contact-block .tb-value{font-size:16px;}
.map-frame{border:1px solid var(--line-strong); margin-top:10px; filter:grayscale(0.25) contrast(1.05);}
.map-frame iframe{width:100%; height:340px; border:0; display:block;}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr; gap:40px;}}

/* CTA strip */
.cta-strip{
  background:var(--ink); color:var(--paper); padding:70px 0; text-align:left;
}
.cta-strip .wrap{display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:26px;}
.cta-strip h2{color:var(--white); font-size:clamp(26px,4vw,40px); max-width:14ch;}
.cta-strip a.hero-cta{color:var(--paper); border-color:rgba(239,241,236,0.4); opacity:1; animation:none;}
.cta-strip a.hero-cta:hover{background:var(--signal); border-color:var(--signal); color:var(--white);}

/* ============================================================
   FOOTER
   ============================================================ */
footer{background:var(--paper-3);}
.footer-top{padding:56px 0 40px; display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; border-bottom:1px solid var(--line);}
.footer-brand{display:flex; align-items:center; gap:12px;}
.footer-brand img{height:46px;}
.footer-nav{display:flex; gap:28px;}
.footer-nav a{font-family:var(--mono); font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase; color:var(--ink-70);}
.footer-nav a:hover{color:var(--signal);}
.footer-bottom{padding:18px 0; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}
.footer-bottom p{font-family:var(--mono); font-size:11px; color:var(--ink-45);}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
.skip-link{
  position:absolute; left:-9999px; top:0; z-index:1000;
  background:var(--ink); color:var(--paper); padding:12px 20px;
  font-family:var(--mono); font-size:13px; letter-spacing:0.04em;
}
.skip-link:focus{left:12px; top:12px;}

/* ============================================================
   GREEK TYPOGRAPHY
   Forcing uppercase on Greek text does not reliably strip the tonos
   (accent) across browsers — e.g. "Έξυπνες" renders as "ΈΞΥΠΝΕΣ"
   instead of the correct "ΕΞΥΠΝΕΣ". Rather than depend on inconsistent
   browser case-folding, Greek content is shown in its natural case.
   ============================================================ */
:lang(el) h1, :lang(el) h2, :lang(el) h3,
:lang(el) .eyebrow, :lang(el) .nav-links a, :lang(el) .footer-nav a,
:lang(el) .hero-cta, :lang(el) .tb-label, :lang(el) .go{
  text-transform:none;
}