/* Air-Klim s.r.o. – brand: blue snowflake + orange sun; clean white, ink text, one blue accent, orange as warm highlight.
   Layout idea: straight, calm sections with a blue/orange stripe motif taken from the business cards and protocols. */
@font-face{font-family:"Poppins";src:url("fonts/Poppins-Regular.ttf") format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"Poppins";src:url("fonts/Poppins-Medium.ttf") format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:"Poppins";src:url("fonts/Poppins-Bold.ttf") format("truetype");font-weight:700;font-display:swap}

:root{
  --blue:#0071BA;
  --blue-dark:#005A94;
  --orange:#F69220;
  --ink:#1E2630;
  --muted:#4F5B68;
  --line:#DCE4EC;
  --tint:#EEF5FB;
  --paper:#FFFFFF;
  --font:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --wrap:1160px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-dark)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:4px}
h1,h2,h3{line-height:1.2;text-wrap:balance;margin:0}
h1{font-size:clamp(30px,4.6vw,50px);font-weight:700;letter-spacing:-.5px}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.3px}
h3{font-size:19px;font-weight:600}
p{margin:0;text-wrap:pretty}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.eyebrow{font-size:13px;font-weight:500;letter-spacing:1.6px;text-transform:uppercase;color:var(--blue)}
.lead{font-size:18px;color:var(--muted);max-width:62ch}
.stripe{height:6px;display:flex}
.stripe span:first-child{flex:72;background:var(--blue)}
.stripe span:last-child{flex:28;background:var(--orange)}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:78px}
.brand img{height:54px;width:auto}
.menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:10px 14px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:500;font-size:15px}
.menu a:hover{background:var(--tint);color:var(--blue)}
.menu a[aria-current="page"]{color:var(--blue);background:var(--tint)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:46px;height:46px;align-items:center;justify-content:center;cursor:pointer;color:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:10px;font-weight:600;font-size:15px;text-decoration:none;border:2px solid transparent;transition:background .15s,color .15s,border-color .15s}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);color:#fff}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-orange{background:var(--orange);color:var(--ink)}
.btn-orange:hover{background:#E07F10;color:var(--ink)}
.menu .btn{margin-left:8px;padding:10px 16px}
.menu .btn-primary,.menu .btn-primary:hover{color:#fff}

/* hero */
.hero{background:linear-gradient(180deg,var(--tint) 0,#fff 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:48px;align-items:center;padding-top:72px;padding-bottom:64px}
.hero h1 .accent{color:var(--blue)}
.hero .lead{margin-top:18px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-mark{justify-self:center;position:relative;width:min(340px,100%);aspect-ratio:1}
.hero-mark::before{content:"";position:absolute;inset:6%;border-radius:50%;background:#fff;box-shadow:0 20px 60px rgba(0,113,186,.14)}
.hero-mark img{position:relative;width:62%;margin:19% auto 0}
.facts{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;padding:0;list-style:none;color:var(--muted);font-size:14.5px}
.facts li{display:flex;align-items:center;gap:8px}
.facts svg{width:18px;height:18px;color:var(--blue);flex:none}
.page-hero{background:var(--tint);padding:56px 0 48px}
.page-hero .lead{margin-top:14px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted)}

/* sections */
section.block{padding:76px 0}
section.block.alt{background:#F7FAFC;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.head{display:flex;flex-direction:column;gap:10px;margin-bottom:36px;max-width:720px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:12px}
.card p{color:var(--muted)}
.card .more{margin-top:auto;padding-top:8px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.card .more:hover{gap:10px}
.ico{width:52px;height:52px;border-radius:12px;background:var(--tint);display:flex;align-items:center;justify-content:center;color:var(--blue)}
.ico.warm{background:#FEF1E2;color:#C46A05}
.ico svg{width:26px;height:26px}
.service-card{border-top:4px solid var(--blue)}
.service-card.warm{border-top-color:var(--orange)}

.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;list-style:none;margin:0;padding:0}
.steps li{position:relative;padding-top:58px}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;top:0;left:0;width:42px;height:42px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center}
.steps li::after{content:"";position:absolute;top:21px;left:52px;right:-12px;height:2px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps h3{margin-bottom:8px}
.steps p{color:var(--muted);font-size:15px}

.checks{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks svg{width:22px;height:22px;flex:none;color:var(--blue);margin-top:2px}
.cols-2{columns:2;column-gap:40px}
.cols-2 li{break-inside:avoid;margin-bottom:12px}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.prose{display:flex;flex-direction:column;gap:16px;max-width:65ch}
.prose p{color:var(--muted)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
.tag-list li{padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14.5px;font-weight:500}

.callout{background:var(--ink);color:#fff;border-radius:18px;padding:40px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;position:relative;overflow:hidden}
.callout h2{color:#fff}
.callout p{color:#C9D3DD;margin-top:10px}
.callout .actions{margin-top:0}
.callout .btn-ghost{background:transparent;color:#fff;border-color:#4A5868}
.callout .btn-ghost:hover{border-color:#fff;color:#fff}

.review{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 32px}
.stars{display:flex;gap:3px;color:var(--orange)}
.stars svg{width:22px;height:22px}

/* contact */
.contact-list{display:grid;gap:14px;list-style:none;margin:0;padding:0}
.contact-list li{display:flex;gap:14px;align-items:center;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff}
.contact-list .k{display:block;font-size:13px;color:var(--muted)}
.contact-list .v{font-weight:600;font-size:17px;color:var(--ink);text-decoration:none}
a.v:hover{color:var(--blue)}
.billing{font-size:15px;color:var(--muted)}
.billing dt{font-weight:600;color:var(--ink)}
.billing dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:0}
.billing dd{margin:0}

/* footer */
.site-footer{background:var(--ink);color:#C9D3DD;font-size:14.5px}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding:56px 0 40px}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:12px}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{color:var(--orange)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.foot-name{font-size:20px;font-weight:700;color:#fff}
.foot-bottom{border-top:1px solid #33404D;padding:18px 0;font-size:13px;color:#9AA7B4;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}

/* responsive */
@media (max-width:980px){
  .grid-4,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps li::after{display:none}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .menu-toggle{display:inline-flex}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 16px 18px;gap:2px}
  .menu.open{display:flex}
  .menu .btn{margin:8px 0 0;justify-content:center}
  .nav{position:relative}
  .hero-grid,.split{grid-template-columns:1fr}
  .hero-mark{display:none}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .callout,.review{grid-template-columns:1fr}
  .cols-2{columns:1}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .grid-4,.steps{grid-template-columns:1fr}
  section.block{padding:56px 0}
  .hero-grid{padding-top:48px;padding-bottom:48px}
  .foot{grid-template-columns:1fr}
  .callout{padding:28px}
  .brand img{height:46px}
  .btn{width:100%;justify-content:center}
}
.skip{position:absolute;left:-9999px;top:8px;z-index:50;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}
.skip:focus{left:12px;color:#fff}