/* ===== LIVESTORM s.r.o. — styles ===== */
:root{
  --ink:#0e1726;        /* hluboká ocelová modř */
  --ink-2:#172538;
  --steel:#33485f;
  --slate:#5b6b7d;
  --mist:#e7ecf1;
  --paper:#f4f6f8;
  --white:#ffffff;
  --accent:#ff6a13;     /* industriální oranžová */
  --accent-dk:#e25500;
  --line:rgba(14,23,38,.12);
  --line-light:rgba(255,255,255,.16);
  --shadow:0 18px 50px -20px rgba(14,23,38,.35);
  --maxw:1180px;
  --r:4px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Archivo',system-ui,sans-serif;
  color:var(--ink);background:var(--paper);
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.08;letter-spacing:-.02em;font-weight:800}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* eyebrow / labels */
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;
}
.eyebrow.light{color:var(--accent)}

/* ===== HEADER ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(244,246,248,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  display:grid;place-items:center;width:42px;height:42px;border-radius:var(--r);
  background:var(--ink);color:#fff;font-family:'Archivo Narrow';font-weight:700;
  font-size:1.05rem;letter-spacing:.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-weight:900;font-size:1.18rem;letter-spacing:.02em}
.brand-tag{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--slate)}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-weight:600;font-size:.94rem;color:var(--steel);transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav .nav-cta{
  background:var(--ink);color:#fff;padding:9px 20px;border-radius:var(--r);transition:background .2s;
}
.nav .nav-cta:hover{background:var(--accent)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45}
.hero-overlay{position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(14,23,38,.95) 0%,rgba(14,23,38,.78) 42%,rgba(14,23,38,.35) 100%);}
.hero-inner{position:relative;padding:96px 24px 60px;max-width:var(--maxw)}
.hero h1{font-size:clamp(2.4rem,6vw,4.6rem);font-weight:900}
.hero h1 span{color:#fff;font-weight:500;letter-spacing:-.025em}
.hero h1 span{display:inline-block;border-left:4px solid var(--accent);padding-left:18px;margin-top:6px}
.hero-lead{max-width:620px;margin:30px 0 36px;font-size:1.12rem;color:#c4cedb}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-strip{position:relative;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-light);margin-top:40px}
.strip-item{padding:26px 8px;border-right:1px solid var(--line-light)}
.strip-item:last-child{border-right:0}
.strip-item .num{display:block;font-family:'Archivo Narrow';font-weight:700;font-size:1.7rem;color:var(--accent)}
.strip-item .lbl{font-size:.82rem;color:#9fb0c2}

/* ===== BUTTONS ===== */
.btn{display:inline-block;padding:14px 28px;border-radius:var(--r);font-weight:700;
  font-size:.96rem;transition:.22s;cursor:pointer;border:0}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dk);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid var(--line-light)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-full{width:100%;text-align:center}

/* ===== SECTIONS ===== */
.section{padding:96px 0}
.section-head{max-width:680px;margin-bottom:54px}
.section-head h2{font-size:clamp(1.9rem,4vw,2.9rem)}
.section-sub{margin-top:18px;font-size:1.08rem;color:var(--slate)}
.section-sub.light{color:#aebccb}
.section-dark{background:var(--ink);color:#fff}
.section-dark h2{color:#fff}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .25s}
.card:hover{transform:translateY(-6px)}
.card-media{aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:30px 28px 34px;position:relative}
.card-no{font-family:'IBM Plex Mono',monospace;font-size:.8rem;color:var(--accent);font-weight:600}
.card-body h3{font-size:1.45rem;margin:8px 0 14px}
.card-body p{color:var(--slate);font-size:.98rem}
.card-list{list-style:none;margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.card-list li{position:relative;padding-left:22px;font-size:.9rem;color:var(--steel);margin-bottom:8px}
.card-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--accent);border-radius:1px}

/* obory grid */
.obor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-light);
  border:1px solid var(--line-light)}
.obor-item{background:var(--ink);padding:34px 28px}
.obor-item:hover{background:var(--ink-2)}
.obor-key{display:inline-block;font-family:'Archivo Narrow';font-weight:700;font-size:1.5rem;
  color:var(--accent);margin-bottom:12px;letter-spacing:.02em}
.obor-item p{color:#aebccb;font-size:.95rem}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:26px;border-top:3px solid var(--ink)}
.step-no{font-family:'IBM Plex Mono',monospace;font-size:.85rem;font-weight:600;color:var(--accent)}
.step h3{font-size:1.22rem;margin:10px 0 12px}
.step p{color:var(--slate);font-size:.95rem}

/* split */
.section-split{background:#fff}
.split{display:grid;grid-template-columns:0.9fr 1.1fr;gap:56px;align-items:center}
.split-media{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4}
.split-text h2{font-size:clamp(1.9rem,4vw,2.9rem)}
.split-text>p{color:var(--slate);font-size:1.08rem;margin:18px 0 30px}
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.benefit h4{font-size:1.05rem;margin-bottom:6px}
.benefit h4::before{content:"—";color:var(--accent);margin-right:8px;font-weight:900}
.benefit p{color:var(--slate);font-size:.92rem}

/* contact */
.section-contact{background:var(--ink);color:#fff}
.section-contact h2{color:#fff}
.contact-grid{display:grid;grid-template-columns:0.8fr 1.2fr;gap:48px}
.contact-info{display:flex;flex-direction:column;gap:30px}
.ci-block .ci-label{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);display:block;margin-bottom:8px}
.ci-block p{color:#d4dde6;font-size:1.05rem}
.ci-block a:hover{color:var(--accent)}
.contact-form{background:var(--ink-2);padding:34px;border-radius:var(--r);border:1px solid var(--line-light)}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:.86rem;font-weight:600;margin-bottom:7px;color:#c4cedb}
.field input,.field textarea{width:100%;padding:13px 15px;background:var(--ink);
  border:1px solid var(--line-light);border-radius:var(--r);color:#fff;font-family:inherit;font-size:.96rem}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field textarea{resize:vertical}
.form-note{font-size:.78rem;color:#8194a6;margin-top:14px;text-align:center}

/* footer */
.site-footer{background:#0a111c;color:#fff;padding:56px 0 28px}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;
  padding-bottom:34px;border-bottom:1px solid var(--line-light);flex-wrap:wrap}
.footer-brand{display:flex;gap:14px;align-items:center}
.footer-brand strong{font-size:1.1rem}
.footer-brand p{color:#8194a6;font-size:.9rem}
.footer-links{display:flex;gap:26px;flex-wrap:wrap}
.footer-links a{color:#aebccb;font-size:.92rem}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding-top:24px;flex-wrap:wrap}
.footer-bottom p{color:#6c7d8f;font-size:.82rem}
.workai-credit{display:flex;align-items:center;gap:9px;color:#8194a6;font-size:.8rem}
.workai-credit img{border-radius:50%}
.workai-credit:hover{color:var(--accent)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== RESPONSIVE ===== */
@media(max-width:920px){
  .cards{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .obor-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{max-width:420px}
  .contact-grid{grid-template-columns:1fr}
  .hero-strip{grid-template-columns:1fr 1fr}
  .strip-item:nth-child(2){border-right:0}
  .strip-item{border-bottom:1px solid var(--line-light)}
}
@media(max-width:640px){
  .nav{position:fixed;inset:70px 0 auto 0;flex-direction:column;background:var(--ink);
    padding:24px;gap:18px;transform:translateY(-130%);transition:transform .35s;z-index:55}
  .nav.open{transform:none}
  .nav a{color:#fff;font-size:1.05rem}
  .nav .nav-cta{text-align:center}
  .burger{display:flex}
  .section{padding:64px 0}
  .obor-grid,.steps,.benefits,.field-row{grid-template-columns:1fr}
  .hero-strip{grid-template-columns:1fr}
  .strip-item{border-right:0}
  .footer-inner{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto}
  .reveal{transition:none;opacity:1;transform:none}
}