/* ============ Ruckert Utikal ITSolutions ============ */
:root{
  --bg:        #E4E2DD;   /* warm light grey */
  --surface:   #EDEBE6;   /* lifted panel */
  --ink:       #232323;   /* near-black text */
  --ink-soft:  #5b5853;   /* secondary text */
  --line:      #cfccc4;   /* hairlines */
  --primary:   #B5442A;   /* terracotta */
  --accent:    #C2381D;   /* red square */
  --primary-d: #983721;
  --maxw: 1180px;
  --pad: clamp(20px, 5vw, 64px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Hanken Grotesk", system-ui, sans-serif;
  font-size:18px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:"Space Grotesk", system-ui, sans-serif;
  font-weight:600;
  line-height:1.05;
  letter-spacing:-0.02em;
  margin:0;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer}
section{scroll-margin-top:90px}

.container{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}

/* square motif */
.sq{display:inline-block;width:.62em;height:.62em;background:var(--accent);vertical-align:middle}

/* ---------- Header ---------- */
.hdr{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s, background .25s;
}
.hdr.scrolled{border-bottom-color:var(--line)}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.hdr-logo{height:34px;width:auto}
.nav{display:flex;align-items:center;gap:38px}
.nav a{font-size:15px;font-weight:500;letter-spacing:.01em;color:var(--ink-soft);position:relative;padding:4px 0;transition:color .18s;white-space:nowrap}
.nav a:hover{color:var(--ink)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .22s}
.nav a:hover::after{width:100%}
.hdr-right{display:flex;align-items:center;gap:20px}

.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:transparent}
.lang button{border:none;background:transparent;padding:6px 13px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--ink-soft);transition:.18s}
.lang button.on{background:var(--ink);color:var(--bg)}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:15px;letter-spacing:.01em;
  padding:13px 22px;border:1px solid var(--primary);border-radius:2px;
  background:var(--primary);color:#fff;transition:.2s;
}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}

.burger{display:none;background:none;border:none;width:40px;height:40px;padding:8px}
.burger span{display:block;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:clamp(70px,11vw,140px);padding-bottom:clamp(60px,9vw,120px)}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:14px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);margin-bottom:30px}
.hero h1{font-size:clamp(40px,7.2vw,88px);max-width:14ch}
.hero h1 .hl{color:var(--primary)}
.hero-sub{font-size:clamp(18px,2vw,22px);color:var(--ink-soft);max-width:52ch;margin-top:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:42px}
.hero-marks{position:absolute;right:var(--pad);top:clamp(70px,11vw,140px);display:flex;flex-direction:column;gap:10px;opacity:.5}
.hero-marks i{width:14px;height:14px;background:var(--accent)}
.hero-marks i:nth-child(2){opacity:.55}
.hero-marks i:nth-child(3){opacity:.28}

/* ---------- Section heading ---------- */
.sec{padding-block:clamp(64px,9vw,120px)}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:14px}
.sec-kicker{font-size:14px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft)}
.sec h2{font-size:clamp(30px,4.4vw,52px)}
.sec-intro{color:var(--ink-soft);max-width:54ch;margin-top:18px;font-size:19px}

/* ---------- Services ---------- */
.svc-list{margin-top:54px;border-top:1px solid var(--line)}
.svc{display:grid;grid-template-columns:90px 1fr auto;gap:28px;align-items:start;
  padding:34px 8px;border-bottom:1px solid var(--line);transition:.25s;position:relative;cursor:pointer}
.svc .num{font-family:"Space Grotesk";font-size:17px;font-weight:600;color:var(--primary);padding-top:6px}
.svc-body{min-width:0;position:relative;z-index:1}
.svc .num,.svc .plus{position:relative;z-index:1}
.svc h3{font-size:clamp(22px,2.6vw,30px);transition:transform .25s}
.svc p{margin:8px 0 0;color:var(--ink-soft);font-size:17px;max-width:60ch}
.svc-long{margin-top:16px !important;font-size:16px;line-height:1.65;max-width:64ch;
  padding-top:16px;border-top:1px solid var(--line)}
.svc .plus{font-size:30px;color:var(--ink-soft);transition:.25s;font-family:"Space Grotesk";line-height:.9;padding-top:2px}
.svc::before{content:"";position:absolute;left:0;top:0;height:100%;width:0;background:var(--primary);opacity:.05;transition:width .3s}
.svc:hover::before,.svc.open::before{width:100%}
.svc:hover h3{transform:translateX(10px)}
.svc.open h3{transform:translateX(10px);color:var(--primary)}
.svc:hover .plus{color:var(--primary)}
.svc.open .plus{color:var(--primary)}

/* ---------- Featured project ---------- */
.feature{background:var(--ink);color:var(--bg);border-radius:4px;overflow:hidden;
  display:grid;grid-template-columns:1.1fr .9fr;gap:0;margin-top:10px}
.feature-txt{padding:clamp(34px,5vw,64px)}
.feature .tag{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#e0ad9c;font-weight:600;margin-bottom:22px}
.feature h3{font-size:clamp(28px,4vw,46px);color:#fff}
.feature p{color:#bdb9b1;margin-top:20px;font-size:18px;max-width:46ch}
.feature .flist{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.feature .flist li{font-size:13px;border:1px solid #4a4845;border-radius:999px;padding:6px 14px;color:#d7d3cb;white-space:nowrap}
.feature-vis{position:relative;display:flex;align-items:center;justify-content:center;padding:40px;
  background:radial-gradient(circle at 50% 30%, #3a3936, var(--ink))}
.phone{width:236px;aspect-ratio:9/19;background:#0d0d0d;border-radius:30px;padding:9px;
  box-shadow:0 30px 60px rgba(0,0,0,.5);border:1px solid #333}
.phone-screen{width:100%;height:100%;border-radius:22px;overflow:hidden;position:relative;background:var(--bg)}
.phone-img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}

/* ---------- About ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:center}
.about-card{background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:clamp(30px,4vw,48px)}
.about-card .who{display:flex;align-items:center;gap:18px;margin-bottom:26px}
.avatar{width:64px;height:64px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-family:"Space Grotesk";font-weight:700;font-size:24px;flex:none}
.about-card .who b{font-family:"Space Grotesk";font-size:20px;display:block}
.about-card .who span{color:var(--ink-soft);font-size:15px}
.about p{color:var(--ink-soft);font-size:19px}
.about p strong{color:var(--ink);font-weight:600}
.stack{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.stack span{font-size:14px;font-weight:600;font-family:"Space Grotesk";background:var(--bg);
  border:1px solid var(--line);border-radius:2px;padding:8px 14px}
.metrics{display:flex;gap:40px;margin-top:36px}
.metrics .m b{font-family:"Space Grotesk";font-size:clamp(30px,4vw,44px);color:var(--primary);display:block;line-height:1}
.metrics .m span{font-size:14px;color:var(--ink-soft)}

/* ---------- Contact ---------- */
.contact{background:var(--surface);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:.85fr 1fr;gap:clamp(40px,6vw,80px)}
.cinfo h2{font-size:clamp(30px,4.4vw,52px)}
.cinfo p{color:var(--ink-soft);margin-top:18px;font-size:19px}
.cdetails{margin-top:40px;display:flex;flex-direction:column;gap:4px}
.cdetail{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);align-items:flex-start}
.cdetail:last-child{border-bottom:1px solid var(--line)}
.cdetail .lbl{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);min-width:90px;padding-top:3px}
.cdetail .val{font-size:18px;font-weight:500}
.cdetail a.val:hover{color:var(--primary)}

form{display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;letter-spacing:.02em}
.field input,.field textarea{
  font-family:inherit;font-size:17px;padding:14px 16px;border:1px solid var(--line);
  border-radius:2px;background:var(--bg);color:var(--ink);transition:.18s;resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(181,68,42,.12)}
.field.err input,.field.err textarea{border-color:var(--accent);box-shadow:0 0 0 3px rgba(194,56,29,.12)}
.field .msg{font-size:13px;color:var(--accent);min-height:0;display:none}
.field.err .msg{display:block}
.form-ok{background:var(--ink);color:var(--bg);padding:36px;border-radius:4px;text-align:center}
.form-ok b{font-family:"Space Grotesk";font-size:24px;display:block;margin-bottom:8px}
.form-ok p{color:#bdb9b1;margin:0}

/* ---------- Footer ---------- */
.ftr{background:var(--ink);color:var(--bg);padding-block:64px 36px}
.ftr-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap}
.ftr-logo{height:42px;width:auto}
.ftr-links{display:flex;gap:30px;flex-wrap:wrap}
.ftr-links button{background:none;border:none;color:#bdb9b1;font-size:15px;font-family:inherit;transition:.18s;padding:0}
.ftr-links button:hover{color:#fff}
.ftr-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid #3a3936;color:#8a8782;font-size:13px}

/* ---------- Modal ---------- */
.overlay{position:fixed;inset:0;z-index:100;background:rgba(20,20,20,.55);backdrop-filter:blur(3px);
  display:flex;align-items:flex-start;justify-content:center;padding:5vh 20px;overflow-y:auto;
  opacity:0;pointer-events:none;transition:opacity .25s}
.overlay.show{opacity:1;pointer-events:auto}
.modal{background:var(--bg);max-width:760px;width:100%;border-radius:4px;padding:clamp(30px,5vw,56px);
  position:relative;transform:translateY(16px);transition:transform .28s;box-shadow:0 40px 80px rgba(0,0,0,.3)}
.overlay.show .modal{transform:translateY(0)}
.modal h2{font-size:clamp(26px,4vw,40px);margin-bottom:8px}
.modal .modal-x{position:absolute;top:22px;right:22px;width:40px;height:40px;border:1px solid var(--line);
  background:transparent;border-radius:50%;font-size:20px;color:var(--ink);transition:.18s}
.modal .modal-x:hover{background:var(--ink);color:var(--bg)}
.modal h3{font-family:"Space Grotesk";font-size:18px;margin-top:30px;margin-bottom:6px}
.modal p{color:var(--ink-soft);font-size:16px;margin:6px 0}
.modal .lead{margin-top:18px}
.modal address{font-style:normal;line-height:1.8;font-size:17px;color:var(--ink)}

/* ---------- Reveal: content visible at rest (no time-based hiding) ---------- */
.reveal{ opacity: 1; }

/* ---------- Mobile ---------- */
@media (max-width:860px){
  .feature,.about,.contact-grid{grid-template-columns:1fr}
  .feature-vis{padding:40px 40px 0}
  .about-card{order:-1}
  .nav,.hdr .btn{display:none}
  .burger{display:block}
  .nav.open{display:flex;position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);padding:10px var(--pad) 24px}
  .nav.open a{padding:16px 0;border-bottom:1px solid var(--line);font-size:18px}
  .nav.open a::after{display:none}
}
@media (max-width:560px){
  .svc{grid-template-columns:46px 1fr;gap:16px}
  .svc .plus{display:none}
  .metrics{gap:26px}
  .hero-marks{display:none}
}