/* ============================================================
   CON-CORD CO. GROUP BALKAN — style.css
   Paleta: papir #F4F6F7 · grafit #101820 · čelik #5E6B73
   Akcent: spektralni teal #0E7C86
   ============================================================ */

:root{
  --paper:#F4F6F7;
  --ink:#101820;
  --steel:#5E6B73;
  --line:#D9E0E4;
  --accent:#0E7C86;
  --accent-dark:#0A5C64;
  --dark:#0E161D;
  --font-display:"Space Grotesk",system-ui,sans-serif;
  --font-body:"IBM Plex Sans",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",monospace;
  --wrap:1140px;
  --topbar-h:64px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar-h) + 8px)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:16.5px;
}

/* ---------- Jezik: prikazuje se samo aktivan ---------- */
span[lang]{display:none}
html[data-lang="sr"] span[lang="sr"]{display:inline}
html[data-lang="en"] span[lang="en"]{display:inline}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- Topbar ---------- */
.topbar{
  position:fixed;inset:0 0 auto 0;height:var(--topbar-h);z-index:100;
  display:flex;align-items:center;gap:32px;
  padding:0 28px;
  background:rgba(244,246,247,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center}
.brand-logo{height:30px;display:block}

.nav{display:flex;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;
  color:var(--steel);text-decoration:none;
  padding:8px 14px;
  transition:color .2s;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s;
}
.nav-link:hover{color:var(--ink)}
.nav-link.active{color:var(--ink)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.lang-switch{display:flex;align-items:center;gap:2px;font-family:var(--font-mono);font-size:13px}
.lang-sep{color:var(--line)}
.lang-btn{
  border:0;background:none;cursor:pointer;
  font:inherit;color:var(--steel);padding:6px 6px;letter-spacing:.04em;
}
.lang-btn[aria-pressed="true"]{color:var(--accent);font-weight:500}
.lang-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.menu-toggle{display:none}

/* ---------- Dugmad ---------- */
.btn{
  display:inline-block;
  font-family:var(--font-mono);font-size:14px;letter-spacing:.03em;
  text-decoration:none;
  padding:13px 26px;
  border:1.5px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-light{border-color:rgba(255,255,255,.5);color:#fff;margin-top:18px}
.btn-light:hover{background:#fff;color:var(--dark)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;align-items:center;
  padding:calc(var(--topbar-h) + 60px) 0 80px;
  overflow:hidden;
  background:var(--paper);
}
.spectrum{position:absolute;inset:0;pointer-events:none}
.spectrum i{
  position:absolute;top:0;bottom:0;left:var(--x);
  width:2px;background:var(--h);opacity:var(--o);
  animation:pulse 7s ease-in-out infinite;
}
.spectrum i:nth-child(2n){animation-delay:1.6s}
.spectrum i:nth-child(3n){animation-delay:3.4s}
@keyframes pulse{0%,100%{opacity:var(--o)}50%{opacity:calc(var(--o)*.35)}}

.hero-inner{position:relative;max-width:820px;margin:0 auto;text-align:left}
.eyebrow{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin-bottom:22px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(2.1rem,5.2vw,3.6rem);
  font-weight:700;line-height:1.12;letter-spacing:-.015em;
  margin-bottom:26px;
}
.lede{font-size:1.15rem;color:var(--steel);max-width:34em;margin-bottom:38px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Sekcije ---------- */
.section{padding:110px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.marker{position:relative;padding-left:34px;margin-bottom:18px}
.marker::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:22px;height:12px;
  background:
    linear-gradient(var(--accent),var(--accent)) 0 0/2px 100% no-repeat,
    linear-gradient(#E0A32E,#E0A32E) 8px 0/2px 100% no-repeat,
    linear-gradient(#6A5AE0,#6A5AE0) 16px 0/2px 100% no-repeat;
}

h2{
  font-family:var(--font-display);
  font-size:clamp(1.6rem,3.2vw,2.3rem);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:28px;max-width:16em;
}
.section-lede{color:var(--steel);max-width:44em;margin:-8px 0 46px}

.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.split h2{margin-bottom:0}
.split-text p+p{margin-top:16px}

.facts{list-style:none;margin-top:34px;border-top:1px solid var(--line)}
.facts li{
  display:flex;justify-content:space-between;gap:20px;
  padding:13px 0;border-bottom:1px solid var(--line);
  font-size:.95rem;
}
.facts strong{font-weight:600}
.facts li>span{color:var(--steel);text-align:right}

/* ---------- Kartice delatnosti ---------- */
.grid{display:grid;gap:26px;margin-top:46px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  background:var(--paper);
  border:1px solid var(--line);
  padding:30px 26px 32px;
  transition:border-color .2s,transform .2s;
}
.section-alt .card{background:#fff}
.card:hover{border-color:var(--accent);transform:translateY(-3px)}
.card-icon{width:44px;height:44px;color:var(--accent);margin-bottom:20px}
.card-icon svg{width:100%;height:100%}
.card h3{
  font-family:var(--font-display);font-size:1.08rem;font-weight:500;
  margin-bottom:10px;
}
.card p{font-size:.94rem;color:var(--steel)}

/* ---------- Proizvodi ---------- */
.products{gap:34px}
.product{border:1px solid var(--line);background:#fff}
.product-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(160deg,#EDF1F3,#E2E9EC);
  border-bottom:1px solid var(--line);
  color:var(--steel);
}
.product-media img{width:100%;height:100%;object-fit:cover;display:block}
.product-fallback{display:none;position:absolute;inset:0;width:100%;height:100%;padding:8%}
.product-media.noimg img{display:none}
.product-media.noimg .product-fallback{display:block}
.product h3{
  font-family:var(--font-display);font-size:1.12rem;font-weight:500;
  margin:22px 26px 8px;
}
.product p{font-size:.95rem;color:var(--steel);margin:0 26px 26px}

/* ---------- Kontakt ---------- */
.section-dark{background:var(--dark);color:#EAF0F2}
.section-dark h2{color:#fff}
.section-dark .marker{color:#7FD1D9}
.contact-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-label{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:#7FD1D9;
  margin:26px 0 8px;font-weight:500;
}
.contact-label:first-child{margin-top:0}
.contact-cols p{color:#C4CFD4;font-size:.97rem}
.contact-link{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.contact-link:hover{border-color:#7FD1D9;color:#7FD1D9}

/* ---------- Footer ---------- */
.footer{background:var(--dark);border-top:1px solid rgba(255,255,255,.08);padding:26px 0}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer p{font-size:.85rem;color:#8C9AA1}
.footer-meta{font-family:var(--font-mono);font-size:.78rem}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
}
@media (max-width:760px){
  .section{padding:80px 0}
  .grid-2{grid-template-columns:1fr}
  .contact-cols{grid-template-columns:1fr;gap:8px}
  .topbar{gap:16px;padding:0 18px}

  .menu-toggle{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:42px;height:42px;margin-left:auto;
    background:none;border:0;cursor:pointer;padding:8px;
  }
  .menu-toggle span{height:2px;background:var(--ink);transition:transform .25s,opacity .2s}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .nav{
    position:fixed;top:var(--topbar-h);left:0;right:0;
    flex-direction:column;gap:0;margin:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:8px 0 14px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .2s,transform .2s;
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav-link{padding:13px 26px;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--accent)}
  .lang-switch{margin-left:auto}
  .menu-toggle{margin-left:0}
}