/* ==========================================================================
   EURASIA GROUP — Design System
   Concept: "Systems Atlas" — technical/blueprint precision, network-of-sectors
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* colors */
  --ink:        #EDDDEB;
  --ink-2:      #F0E2EE;
  --ink-3:      #F2E6F0;
  --paper:      #F5E7E4;
  --paper-2:    #EBDEDB;
  --copper:     #F08624;
  --copper-lt:  #F5B071;
  --copper-text:#905016;
  --steel:      #22649C;
  --steel-lt:   #7AA2C4;
  --text-dark:  #16232E;   /* text on ink (chrome) sections */
  --text-dark-mute: #52505A;
  --text-light: #16232E;   /* text on paper sections */
  --text-light-mute: #5B4F55;
  --line-dark:  rgba(22,35,46,0.14);
  --line-light: rgba(22,35,46,0.14);

  /* type */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body:    'Inter', sans-serif;
  --f-mono:    'IBM Plex Mono', monospace;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--text-light);
  font-family:var(--f-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,h4{ font-family:var(--f-display); margin:0; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }

.wrap{ max-width:var(--container); margin:0 auto; padding:0 32px; }

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

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--copper);
  outline-offset:3px;
}

/* ---------- eyebrow / mono labels ---------- */
.eyebrow{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--copper-text);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background:var(--copper);
  display:inline-block;
}
.eyebrow.on-light{ color:var(--copper-text); }

/* ---------- corner ticks (blueprint signature) ---------- */
.tick-frame{ position:relative; }
.tick-frame::before,
.tick-frame::after,
.tick-frame > .tick-br,
.tick-frame > .tick-bl{
  content:""; position:absolute; width:14px; height:14px;
  border-color:currentColor; border-style:solid; opacity:0.55;
}
.tick-frame::before{ top:0; left:0; border-width:1px 0 0 1px; }
.tick-frame::after{ top:0; right:0; border-width:1px 1px 0 0; }
.tick-frame > .tick-bl{ bottom:0; left:0; border-width:0 0 1px 1px; }
.tick-frame > .tick-br{ bottom:0; right:0; border-width:0 1px 1px 0; }

/* ==========================================================================
   HEADER / NAV
   ========================================================================== */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(237,221,235,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.nav{
  max-width:var(--container); margin:0 auto; padding:0 32px;
  height:76px; display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; }
.brand-logo{ height:42px; width:auto; display:block; }
@media (max-width:920px){
  .brand-logo{ height:36px; }
  .ci{ width:28px; height:28px; }
  .ci svg{ width:14px; height:14px; }
}

.nav-links{ display:flex; align-items:center; gap:36px; }
.nav-links a{
  font-family:var(--f-display); font-size:15.5px; font-weight:600; letter-spacing:0;
  color:var(--text-dark-mute);
  padding:6px 0; position:relative;
  transition:color .2s;
}
.nav-links a:hover, .nav-links a.active{ color:var(--text-dark); }
.nav-links a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-3px; height:2px; background:var(--copper);
}
.nav-right{ display:flex; align-items:center; gap:22px; }
.contact-icons{ display:flex; align-items:center; gap:8px; }
.ci{
  width:32px; height:32px; border-radius:50%; flex:none;
  display:flex; align-items:center; justify-content:center;
  background:rgba(22,35,46,0.08); cursor:pointer;
  transition:transform .2s ease, background .2s ease;
}
.ci svg{ width:16px; height:16px; }
.ci:hover{ transform:translateY(-2px); background:rgba(22,35,46,0.18); }
.ci-whatsapp{ color:#25D366; }
.ci-telegram{ color:#229ED9; }
.ci-phone{ color:var(--copper-text); }
.lang-switch{ display:flex; gap:6px; font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; }
.lang-switch a{ color:var(--text-dark-mute); padding:4px 7px; border:1px solid var(--line-dark); }
.lang-switch a.active{ color:var(--text-light); background:var(--copper); border-color:var(--copper); }
.lang-switch a:hover:not(.active){ color:var(--text-dark); border-color:var(--steel); }

.nav-toggle{ display:none; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--text-dark); margin:4px 0; }

@media (max-width:920px){
  .nav-links{
    position:fixed; top:76px; left:0; right:0; bottom:0;
    background:var(--ink); flex-direction:column; align-items:flex-start;
    padding:32px; gap:22px; transform:translateX(100%); transition:transform .3s ease;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{ display:block; }
  .nav-right{ gap:10px; }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn{
  font-family:var(--f-mono); font-size:12.5px; letter-spacing:.08em; text-transform:uppercase;
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 24px; border:1px solid currentColor;
  position:relative; cursor:pointer;
  transition:background .2s, color .2s, transform .2s;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--copper); color:var(--text-light); border-color:var(--copper); }
.btn-primary:hover{ background:var(--copper-lt); border-color:var(--copper-lt); }
.btn-outline{ color:var(--text-dark); }
.btn-outline:hover{ background:var(--text-light); color:var(--paper); }
.btn-outline.on-light{ color:var(--text-light); }
.btn-outline.on-light:hover{ background:var(--text-light); color:var(--paper); }
.btn::before, .btn::after{ content:""; position:absolute; width:8px; height:8px; opacity:0; transition:opacity .2s; border-color:currentColor; border-style:solid;}
.btn::before{ top:-1px; left:-1px; border-width:2px 0 0 2px; }
.btn::after{ bottom:-1px; right:-1px; border-width:0 2px 2px 0; }
.btn:hover::before, .btn:hover::after{ opacity:1; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  background:var(--ink); color:var(--text-dark);
  padding:168px 0 96px;
  position:relative; overflow:hidden;
}
.hero-grid-bg{
  position:absolute; inset:0; opacity:0.5; pointer-events:none;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom, black, transparent 85%);
}
.hero-net{
  position:absolute; inset:0; width:100%; height:100%;
  pointer-events:none; z-index:1;
}
.hero-inner{ position:relative; display:block; max-width:760px; z-index:2; }
.hero h1{ font-size:clamp(34px,4.6vw,58px); line-height:1.06; color:var(--text-dark); }
.hero h1 em{ font-style:normal; color:var(--copper-text); }
.hero-sub{ margin-top:22px; font-size:18px; color:var(--text-dark-mute); max-width:52ch; line-height:1.65; }
.hero-actions{ margin-top:36px; display:flex; gap:16px; flex-wrap:wrap; }
.hero-code{ position:absolute; bottom:0; right:32px; z-index:2; font-family:var(--f-mono); font-size:11px; color:var(--text-dark-mute); letter-spacing:.08em; opacity:.7;}

.hero-diagram{ position:relative; aspect-ratio:1/1; }
.hero-diagram svg{ width:100%; height:100%; }

@media (max-width:920px){
  .hero{ padding:140px 0 64px; }
}

/* diagram node pulse */
.node-pulse{ animation:pulse 3.2s ease-in-out infinite; }
.node-pulse.d1{ animation-delay:.2s; }
.node-pulse.d2{ animation-delay:.6s; }
.node-pulse.d3{ animation-delay:1.0s; }
.node-pulse.d4{ animation-delay:1.4s; }
.node-pulse.d5{ animation-delay:1.8s; }
.node-pulse.d6{ animation-delay:2.2s; }
@keyframes pulse{
  0%,100%{ opacity:.55; }
  50%{ opacity:1; }
}
.line-draw{ stroke-dasharray:400; stroke-dashoffset:400; animation:draw 2.4s ease forwards; }
@keyframes draw{ to{ stroke-dashoffset:0; } }

/* ==========================================================================
   STATS STRIP
   ========================================================================== */
.stats{
  background:var(--ink-2); color:var(--text-dark); border-top:1px solid var(--line-dark); border-bottom:1px solid var(--line-dark);
  padding:36px 0;
}
.stats-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; text-align:center; }
.stat-num{ font-family:var(--f-display); font-size:clamp(26px,3vw,36px); color:var(--copper-text); }
.stat-label{ font-family:var(--f-mono); font-size:11.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--text-dark-mute); margin-top:6px; }
@media (max-width:700px){ .stats-row{ grid-template-columns:1fr; gap:28px; } }

/* ==========================================================================
   SECTIONS — generic
   ========================================================================== */
.section{ padding:104px 0; }
.section.on-ink{ background:var(--ink); color:var(--text-dark); }
.section.on-paper2{ background:var(--paper-2); }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(26px,3.4vw,40px); }
.section.on-ink .section-head h2{ color:var(--text-dark); }

/* ---------- service / card grid ---------- */
.card-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.section.on-ink .card-grid{ background:var(--line-dark); border-color:var(--line-dark); }
.card{ background:var(--paper); padding:36px 28px; position:relative; }
.section.on-ink .card{ background:var(--ink); }
.card-num{ font-family:var(--f-mono); font-size:12px; color:var(--copper-text); letter-spacing:.06em; }
.card h3{ font-size:19px; margin:16px 0 12px; }
.card p{ font-size:14.5px; color:var(--text-light-mute); line-height:1.6; }
.section.on-ink .card p{ color:var(--text-dark-mute); }
.card a.card-link{ display:inline-flex; align-items:center; gap:8px; margin-top:18px; font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase; color:var(--copper-text); cursor:pointer; }
.card a.card-link:hover{ text-decoration:underline; }

@media (max-width:1000px){ .card-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .card-grid{ grid-template-columns:1fr; } }

/* ---------- audience split ---------- */
.audience{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.audience-col{ background:var(--paper); padding:44px 40px; }
.audience-col h3{ font-size:22px; margin-bottom:14px; }
.audience-col p{ color:var(--text-light-mute); margin-bottom:20px; }
.audience-col ul li{ font-size:14.5px; padding:8px 0; border-top:1px solid var(--line-light); color:var(--text-light); display:flex; gap:10px;}
.audience-col ul li::before{ content:"—"; color:var(--copper-text); }
@media (max-width:800px){ .audience{ grid-template-columns:1fr; } }

/* ---------- approach / process ---------- */
.process{ display:grid; grid-template-columns:repeat(3,1fr); gap:40px; }
.process-step{ position:relative; padding-top:28px; border-top:1px solid var(--line-light); }
.section.on-ink .process-step{ border-color:var(--line-dark); }
.process-step .p-num{ font-family:var(--f-mono); font-size:12px; color:var(--copper-text); }
.process-step h3{ font-size:20px; margin:14px 0 10px; }
.process-step p{ color:var(--text-light-mute); font-size:14.5px; }
.section.on-ink .process-step p{ color:var(--text-dark-mute); }
@media (max-width:800px){ .process{ grid-template-columns:1fr; gap:32px; } }

/* ---------- industries grid ---------- */
.industry-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.industry-card{ background:var(--paper); padding:30px 24px; min-height:168px; display:flex; flex-direction:column; justify-content:space-between; }
.industry-card .i-icon{ width:30px; height:30px; color:var(--copper-text); }
.industry-card h4{ font-size:16px; margin-top:16px; }
.industry-card p{ font-size:13px; color:var(--text-light-mute); margin-top:8px; }
@media (max-width:1000px){ .industry-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .industry-grid{ grid-template-columns:1fr; } }

/* ---------- CTA banner ---------- */
.cta-banner{ background:var(--ink); color:var(--text-dark); padding:88px 0; text-align:center; position:relative; overflow:hidden; }
.cta-banner h2{ font-size:clamp(26px,3.6vw,42px); max-width:16ch; margin:0 auto 28px; }
.cta-banner .eyebrow{ justify-content:center; }
.cta-actions{ display:flex; justify-content:center; gap:16px; flex-wrap:wrap; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background:var(--ink); color:var(--text-dark-mute); padding:64px 0 28px; border-top:1px solid var(--line-dark); }
.footer-grid{ display:grid; grid-template-columns:1.3fr 0.8fr 0.8fr 0.85fr 0.95fr; gap:28px; padding-bottom:44px; border-bottom:1px solid var(--line-dark); }
.footer-logo{ height:34px; width:auto; display:block; margin-bottom:16px; }
.footer-brand p{ font-size:13.5px; line-height:1.7; max-width:34ch; }
.footer-col h5{ font-family:var(--f-mono); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--text-dark); margin-bottom:18px; }
.footer-col ul li{ padding:6px 0; }
.footer-col a{ font-size:14px; color:var(--text-dark-mute); transition:color .2s; }
.footer-col a:hover{ color:var(--copper-text); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-size:12.5px; font-family:var(--f-mono); flex-wrap:wrap; gap:12px; }

.footer-social-badges{ display:flex; gap:10px; margin-top:22px; }
.fsb{
  width:36px; height:36px; border-radius:50%; flex:none;
  display:flex; align-items:center; justify-content:center;
  background:var(--text-dark); color:#FFFFFF;
  transition:transform .2s ease, background .2s ease;
}
.fsb svg{ width:16px; height:16px; }
.fsb:hover{ transform:translateY(-3px); background:var(--copper); }

.footer-qr img{ display:block; width:112px; height:112px; background:#FFFFFF; border-radius:10px; padding:8px; }
.footer-qr p{ margin-top:10px; font-size:12px; color:var(--text-dark-mute); max-width:16ch; line-height:1.5; }

.back-to-top{
  width:42px; height:42px; border-radius:50%; flex:none;
  display:flex; align-items:center; justify-content:center;
  border:1.5px solid var(--text-dark); color:var(--text-dark); background:transparent;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.back-to-top svg{ width:18px; height:18px; }
.back-to-top:hover{ background:var(--copper); border-color:var(--copper); color:var(--text-light); transform:translateY(-3px); }

@media (max-width:1100px){ .footer-grid{ grid-template-columns:1.2fr 1fr 1fr; } }
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }

/* ==========================================================================
   PAGE HEADER BAND (interior pages)
   ========================================================================== */
.page-head{ background:var(--ink); color:var(--text-dark); padding:168px 0 64px; position:relative; overflow:hidden;}
.page-head .hero-grid-bg{ opacity:.35; }
.page-head h1{ font-size:clamp(30px,4vw,46px); max-width:18ch; position:relative; }
.page-head .lede{ margin-top:18px; color:var(--text-dark-mute); max-width:60ch; font-size:16.5px; position:relative;}
.breadcrumb{ font-family:var(--f-mono); font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--steel); margin-bottom:20px; position:relative;}
.breadcrumb a{ color:var(--steel); }
.breadcrumb a:hover{ color:var(--copper-text); }

/* ---------- service detail blocks ---------- */
.svc-block{ display:grid; grid-template-columns:0.9fr 1.4fr; gap:56px; padding:64px 0; border-top:1px solid var(--line-light); }
.svc-block:first-child{ border-top:none; }
.svc-index{ font-family:var(--f-mono); font-size:13px; color:var(--copper-text); }
.svc-block h3{ font-size:clamp(22px,2.6vw,30px); margin-top:14px; }
.svc-block p{ color:var(--text-light-mute); margin-bottom:18px; }
.svc-list{ display:grid; gap:10px; margin-top:8px; }
.svc-list li{ display:flex; gap:12px; font-size:14.5px; align-items:flex-start; }
.svc-list li::before{ content:""; width:6px; height:6px; background:var(--copper); margin-top:8px; flex:none; }
@media (max-width:800px){ .svc-block{ grid-template-columns:1fr; gap:20px; } }

/* ---------- about page specific ---------- */
.mvv-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.mvv-card{ background:var(--paper); padding:36px 30px; }
.mvv-card h3{ font-family:var(--f-mono); font-size:12.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--copper-text); margin-bottom:16px;}
.mvv-card p{ font-size:15px; color:var(--text-light); line-height:1.7; }
@media (max-width:800px){ .mvv-grid{ grid-template-columns:1fr; } }

.values-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:32px; }
.value-item .v-num{ font-family:var(--f-mono); color:var(--copper-text); font-size:12px; }
.value-item h4{ font-size:17px; margin:12px 0 8px; }
.value-item p{ font-size:14px; color:var(--text-light-mute); }
@media (max-width:900px){ .values-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .values-grid{ grid-template-columns:1fr; } }

.timeline-strip{ display:flex; align-items:center; justify-content:space-between; border-top:1px solid var(--line-dark); border-bottom:1px solid var(--line-dark); padding:28px 0; }
.timeline-strip .t-item{ text-align:center; }
.timeline-strip .t-year{ font-family:var(--f-display); font-size:22px; color:var(--copper-text); }
.timeline-strip .t-label{ font-family:var(--f-mono); font-size:11px; color:var(--text-dark-mute); margin-top:4px; letter-spacing:.05em;}

/* ---------- contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.contact-panel{ background:var(--paper); padding:44px 40px; }
.contact-item{ display:flex; gap:16px; padding:20px 0; border-top:1px solid var(--line-light); }
.contact-item:first-child{ border-top:none; }
.contact-item .c-icon{ width:22px; height:22px; color:var(--copper-text); flex:none; margin-top:2px; }
.contact-item h5{ font-family:var(--f-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-light-mute); margin-bottom:4px; }
.contact-item a, .contact-item p{ font-size:15.5px; color:var(--text-light); }
.contact-item a:hover{ color:var(--copper-text); }
.map-frame{ width:100%; height:100%; min-height:340px; border:0; filter:grayscale(0.3) contrast(1.05); }
@media (max-width:800px){ .contact-grid{ grid-template-columns:1fr; } .map-frame{ min-height:280px; } }

/* utility */
.mt-tag{ font-family:var(--f-mono); font-size:11px; color:var(--steel); letter-spacing:.06em; }