/*
Theme Name: InCarbon
Theme URI: https://incarbon.store
Author: InCarbon
Author URI: https://incarbon.store
Description: Classic WordPress theme for InCarbon — karbónové kompozity na mieru.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: incarbon
*/

:root{
  --bg:#0a0b0d;
  --bg-alt:#111318;
  --surface:#1a1d22;
  --surface-2:#22262c;
  --line:#2b2f36;
  --text:#f2f1ee;
  --text-muted:#9aa0a8;
  --accent:#c9a15a;
  --accent-soft:rgba(201,161,90,0.14);
  --radius:14px;
  --maxw:1180px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Space Grotesk', sans-serif; font-weight:600; letter-spacing:-0.01em;}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}

:focus-visible{outline:2px solid var(--accent); outline-offset:3px; border-radius:4px;}
main:focus{outline:none;}
.skip-link{
  position:absolute; left:-9999px; top:0; z-index:300;
  background:var(--accent); color:#141414; font-weight:600; font-size:14px;
  padding:12px 20px; border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 28px;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12.5px; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--accent); font-weight:600; margin-bottom:16px;
}
.eyebrow::before{content:""; width:22px; height:1px; background:var(--accent);}

/* Carbon weave texture */
.carbon-weave{
  background-color:#0d0f12;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.035) 0px, rgba(255,255,255,0.035) 2px, transparent 2px, transparent 8px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.03) 0px, rgba(255,255,255,0.03) 2px, transparent 2px, transparent 8px),
    linear-gradient(180deg, #121418, #0a0b0d);
}

/* ===== NAV ===== */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(10,11,13,0.72);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background 0.3s ease;
}
nav{display:flex; align-items:center; justify-content:space-between; padding:16px 28px; max-width:var(--maxw); margin:0 auto;}
.logo{max-width:180px; height:auto;}
.nav-links{display:flex; gap:34px; font-size:14.5px; font-weight:500;}
.nav-links a{color:var(--text-muted); transition:color 0.2s ease; position:relative; padding:4px 0;}
.nav-links a:hover{color:var(--text);}
.nav-links a::after{content:""; position:absolute; left:0; bottom:0; width:0; height:1px; background:var(--accent); transition:width 0.25s ease;}
.nav-links a:hover::after{width:100%;}
.nav-cta{
  background:var(--accent); color:#141414; padding:10px 20px; border-radius:999px;
  font-size:14px; font-weight:600; white-space:nowrap;
}
.nav-cta:hover{background:#dcb56c;}
.burger{display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none;}
.burger span{width:24px; height:2px; background:var(--text);}
.mobile-menu{display:none; flex-direction:column; gap:22px; padding:24px 28px 30px; background:var(--bg-alt); border-top:1px solid var(--line);}
.mobile-menu a{font-size:16px; color:var(--text);}
.mobile-menu.open{display:flex;}

/* ===== HERO ===== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  padding:140px 0 90px;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(ellipse 60% 55% at 78% 28%, rgba(201,161,90,0.16), transparent 60%),
             radial-gradient(ellipse 50% 45% at 15% 80%, rgba(120,140,255,0.06), transparent 60%);
  pointer-events:none;
}
.hero-grid{display:grid; grid-template-columns:1.1fr 0.9fr; gap:60px; align-items:center; position:relative; z-index:2;}
.hero h1{font-size:clamp(36px, 5vw, 58px); line-height:1.08; margin-bottom:22px;}
.hero h1 em{font-style:normal; color:var(--accent);}
.hero p.lead{font-size:17.5px; color:var(--text-muted); max-width:480px; margin-bottom:36px;}
.btn-row{display:flex; gap:16px; flex-wrap:wrap; margin-bottom:56px;}
.btn{
  padding:14px 26px; border-radius:999px; font-size:14.5px; font-weight:600;
  display:inline-flex; align-items:center; gap:8px; transition:all 0.25s ease;
}
.btn-primary{background:var(--accent); color:#141414;}
.btn-primary:hover{background:#dcb56c; transform:translateY(-2px);}
.btn-ghost{border:1px solid var(--line); color:var(--text);}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}

.pillars{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); list-style:none;}
.pillar{padding:20px 18px 0; border-right:1px solid var(--line);}
.pillar:last-child{border-right:none;}
.pillar .num{font-family:'Space Grotesk',sans-serif; color:var(--accent); font-size:13px; font-weight:700; margin-bottom:6px; display:block;}
.pillar .pillar-title{display:block; font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:-0.01em; font-size:15px; margin-bottom:4px;}
.pillar p{font-size:13px; color:var(--text-muted);}

.hero-visual{
  position:relative; aspect-ratio:4/5; border-radius:var(--radius);
  overflow:hidden; border:1px solid var(--line);
}
.hero-visual .layer{position:absolute; inset:0;}
.hero-visual .hero-image{width:100%; height:100%; object-fit:cover;}
.hero-visual .l1{
  background:
    repeating-linear-gradient(45deg, #2a2d33 0 6px, #1c1f24 6px 12px),
    repeating-linear-gradient(-45deg, rgba(0,0,0,0.5) 0 6px, transparent 6px 12px);
}
.hero-visual .l2{
  background:linear-gradient(160deg, transparent 30%, rgba(10,11,13,0.85) 100%);
}
.hero-visual .badge{
  position:absolute; bottom:22px; left:22px; right:22px;
  background:rgba(10,11,13,0.75); backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.08); border-radius:10px;
  padding:16px 18px;
}
.hero-visual .badge .badge-title{display:block; font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:-0.01em; font-size:14.5px; margin-bottom:4px;}
.hero-visual .badge p{font-size:12.5px; color:var(--text-muted);}

/* ===== SECTION SHARED ===== */
section{padding:110px 0;}
.section-head{max-width:640px; margin-bottom:56px;}
.section-head h2{font-size:clamp(28px,3.4vw,40px); margin-bottom:16px;}
.section-head p{color:var(--text-muted); font-size:16px;}
.section-alt{background:var(--bg-alt);}

/* ===== SERVICES ===== */
.services-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:20px;}
.service-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:30px 26px; transition:transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  position:relative;
}
.service-card:hover{transform:translateY(-6px); border-color:var(--accent); background:var(--surface-2);}
.service-icon{
  width:46px; height:46px; border-radius:10px; background:var(--accent-soft);
  display:flex; align-items:center; justify-content:center; margin-bottom:20px;
}
.service-icon svg{width:22px; height:22px; stroke:var(--accent); fill:none; stroke-width:1.6;}
.service-card h3{font-size:18px; margin-bottom:10px;}
.service-card p{font-size:14.5px; color:var(--text-muted);}

/* ===== PORTFOLIO ===== */
.portfolio-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); grid-auto-rows:170px; gap:14px; list-style:none;
}
.portfolio-item{
  display:block; height:100%; position:relative; border-radius:10px; overflow:hidden; cursor:pointer;
  border:1px solid var(--line);
}
.portfolio-item img{
  width:100%; height:100%; display:block; object-fit:cover;
  transition:transform 0.4s ease;
}
.portfolio-item:hover img{transform:scale(1.08);}

/* ===== CTA STRIP ===== */
.cta-strip{
  background:var(--surface); border:1px solid var(--line); border-radius:20px;
  padding:56px 48px; display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap;
}
.cta-strip h2{font-size:26px; max-width:480px;}

/* ===== CONTACT / FOOTER ===== */
footer{background:#08090a; border-top:1px solid var(--line); padding:80px 0 30px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr; gap:40px; margin-bottom:60px;}
.footer-col .footer-heading{font-size:13px; font-weight:600; letter-spacing:0.08em; text-transform:uppercase; color:var(--text-muted); margin-bottom:18px;}
.footer-col a, .footer-col p{display:block; font-size:14.5px; color:var(--text-muted); margin-bottom:12px;}
.footer-col a:hover{color:var(--accent);}
.footer-brand p{color:var(--text-muted); font-size:14.5px; max-width:280px; margin-top:14px;}
.social-row{display:flex; gap:12px; margin-top:18px;}
.social-row a{
  width:36px; height:36px; border-radius:50%; border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center; margin-bottom:0;
}
.social-row a svg{width:16px; height:16px; stroke:var(--text-muted); fill:none; stroke-width:1.6;}
.social-row a:hover{border-color:var(--accent);}
.social-row a:hover svg{stroke:var(--accent);}
.footer-bottom{
  border-top:1px solid var(--line); padding-top:26px; display:flex; justify-content:space-between;
  font-size:13px; color:var(--text-muted); flex-wrap:wrap; gap:10px;
}

@media (max-width:900px){
  .nav-links, .nav-cta{display:none;}
  .burger{display:flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1; max-height:320px;}
  .pillars{grid-template-columns:repeat(2,1fr);}
  .pillar{border-right:none; border-bottom:1px solid var(--line); padding-bottom:18px;}
  .services-grid{grid-template-columns:repeat(2,1fr);}
  .portfolio-grid{grid-template-columns:repeat(2,1fr); grid-auto-rows:140px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .cta-strip{padding:40px 28px;}
}
@media (max-width:560px){
  .services-grid{grid-template-columns:1fr;}
  .portfolio-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr; gap:30px;}
}