/* VRTY BUREŠ — vrtané studny a čerpací technika. Ukázkový web pro webpj.cz.
   Kostra (22., odlišná od ostatních dem): hero má vpravo geologický řez —
   svislou vizualizaci vrstev země s hloubkovou osou a vrtem, který zajede dolů.
   Hlavní interaktivní prvek: kalkulace studny podle hloubky a vystrojení. */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --modra:#2563a8;
  --modra2:#1c4c84;
  --okr:#c08b3e;
  --tma:#212b33;
  --tma2:#18212a;
  --krem:#f5f2ec;
  --krem2:#e8e2d7;
  --bila:#fff;
  --seda:#63707b;
  --seda2:#98a5b0;
  --linka:#ded7ca;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--tma);background:var(--bila);font-size:16.6px;line-height:1.66;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:'Chivo','Inter',sans-serif;font-weight:900;line-height:1.1;letter-spacing:-.024em}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px}

.demo{background:var(--tma2);color:#8e9aa4;font-size:13.4px;text-align:center;padding:11px 18px}
.demo a{color:#6fb0e8;font-weight:700}

.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--linka)}
.nav .row{display:flex;align-items:center;gap:26px;height:76px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none}
.logo .zn{width:38px;height:38px;background:var(--modra);display:grid;place-items:center;color:#fff;flex:0 0 auto;border-radius:8px}
.logo b{display:block;font-family:'Chivo',sans-serif;font-size:20px;font-weight:900;line-height:1.1;text-transform:uppercase;letter-spacing:-.01em}
.logo small{display:block;font-size:10.2px;letter-spacing:.15em;text-transform:uppercase;color:var(--seda)}
.nav nav{margin-left:auto;display:flex;gap:25px}
.nav nav a{text-decoration:none;font-size:15px;font-weight:500;color:var(--seda);padding:6px 0;border-bottom:2px solid transparent}
.nav nav a:hover,.nav nav a.on{color:var(--tma);border-color:var(--modra)}
.navtel{display:inline-flex;align-items:center;gap:8px;background:var(--modra);color:#fff;text-decoration:none;font-weight:700;font-size:14.6px;padding:12px 20px;border-radius:8px}
.burger{display:none;margin-left:auto;background:none;border:0;font-size:24px;cursor:pointer;color:var(--tma)}
.mm{display:none;border-top:1px solid var(--linka);background:#fff}
.mm.open{display:block}
.mm a{display:block;padding:14px 24px;text-decoration:none;border-bottom:1px solid var(--linka);font-weight:500}
@media(max-width:1080px){.nav nav,.navtel{display:none}.burger{display:block}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:53px;padding:0 27px;border-radius:8px;text-decoration:none;font-weight:600;font-size:15.4px;border:0;cursor:pointer;font-family:inherit;transition:background .16s,color .16s,box-shadow .16s}
.btn--mo{background:var(--modra);color:#fff}
.btn--mo:hover{background:var(--modra2)}
.btn--ok{background:var(--okr);color:var(--tma)}
.btn--ok:hover{background:#a8762f}
.btn--lin{background:transparent;color:var(--tma);box-shadow:inset 0 0 0 2px var(--linka)}
.btn--lin:hover{box-shadow:inset 0 0 0 2px var(--tma)}
.btn--sv{background:#fff;color:var(--tma)}
.tl{display:flex;gap:12px;flex-wrap:wrap}

/* hero s geologickým řezem */
.hero{background:var(--krem);padding:54px 0 60px;overflow:hidden}
.hero .in{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero .oko{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--modra);margin-bottom:18px}
.hero h1{font-size:clamp(32px,4.3vw,52px);margin-bottom:16px;max-width:16ch}
.hero .lead{font-size:17.2px;color:var(--seda);max-width:52ch;margin-bottom:26px}
.hero .cis{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px;padding-top:24px;border-top:1px solid var(--linka)}
.hero .cis b{display:block;font-family:'Chivo',sans-serif;font-size:27px;font-weight:900;line-height:1;color:var(--modra2)}
.hero .cis span{font-size:12.6px;color:var(--seda);display:block;margin-top:5px;line-height:1.32}

/* geologický řez */
.rez{background:#fff;border-radius:14px;padding:24px;box-shadow:0 24px 52px -30px rgba(33,43,51,.45)}
.rez h3{font-size:17px;margin-bottom:3px}
.rez .pd{font-size:13.2px;color:var(--seda);margin-bottom:18px}
.rez .telo{position:relative;display:grid;grid-template-columns:44px 1fr;gap:12px}
.rez .osa{display:flex;flex-direction:column;justify-content:space-between;font-size:11.6px;color:var(--seda);text-align:right;padding:2px 0}
.rez .vrstvy{position:relative;border-radius:8px;overflow:hidden}
.rez .v{position:relative;display:flex;align-items:center;padding:0 14px;font-size:12.8px;color:rgba(255,255,255,.94);font-weight:500;letter-spacing:.01em;text-shadow:0 1px 3px rgba(0,0,0,.28)}
.rez .v.tmavy{color:rgba(255,255,255,.94)}
.rez .v.svetly{color:rgba(33,43,51,.86);text-shadow:none}
.rez .trubka{position:absolute;left:50%;transform:translateX(-50%);top:0;width:15px;background:linear-gradient(90deg,#8b939b,#cfd6dc 38%,#8b939b);border-radius:0 0 3px 3px;height:0;transition:height 1.8s cubic-bezier(.3,.6,.3,1);box-shadow:0 0 0 2px rgba(0,0,0,.14)}
.rez .voda{position:absolute;left:50%;transform:translateX(-50%);width:15px;background:linear-gradient(180deg,rgba(58,143,220,.4),#3a8fdc);opacity:0;transition:opacity .7s .9s}
.rez .voda.zobraz{opacity:1}
.rez .stitek{position:absolute;right:8px;background:var(--modra);color:#fff;font-size:11.4px;font-weight:700;padding:4px 9px;border-radius:5px;white-space:nowrap;opacity:0;transform:translateY(4px);transition:opacity .5s 1.3s,transform .5s 1.3s}
.rez .stitek.zobraz{opacity:1;transform:translateY(0)}
.rez .pata{margin-top:16px;padding-top:14px;border-top:1px solid var(--linka);display:flex;justify-content:space-between;gap:14px;align-items:baseline}
.rez .pata span{font-size:13.2px;color:var(--seda)}
.rez .pata b{font-family:'Chivo',sans-serif;font-size:21px;font-weight:900;color:var(--modra)}
@media(max-width:980px){.hero .in{grid-template-columns:1fr;gap:34px}}
@media(max-width:520px){.hero .cis{grid-template-columns:1fr;gap:12px}}

section{padding:84px 0}
.kr{background:var(--krem)}
.tm{background:var(--tma);color:var(--seda2)}
.tm h2,.tm h3{color:#fff}
.hl{max-width:700px;margin-bottom:38px}
.hl h2{font-size:clamp(28px,3.9vw,44px);margin-bottom:12px}
.hl p{color:var(--seda);font-size:17px}
.tm .hl p{color:var(--seda2)}
.hlr{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:38px}
.hlr .hl{margin-bottom:0}

/* kalkulace */
.kal{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start}
.kbox{background:#fff;border:1px solid var(--linka);border-radius:14px;padding:30px}
.kr2{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--linka)}
.kr2:last-child{margin-bottom:0;padding-bottom:0;border-bottom:0}
.klb{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--seda);margin-bottom:13px}
.khod{font-family:'Chivo',sans-serif;font-size:30px;font-weight:900;line-height:1;margin-bottom:9px}
.khod small{font-size:16px;color:var(--seda);font-weight:400;font-family:'Inter',sans-serif}
input[type=range]{width:100%;accent-color:var(--modra);height:26px}
.vb{display:grid;gap:9px;grid-template-columns:1fr 1fr}
.vb--3{grid-template-columns:repeat(3,1fr)}
.vb button{background:#fff;border:1.8px solid var(--linka);padding:13px 15px;font-family:inherit;font-size:15px;cursor:pointer;color:var(--tma);text-align:left;border-radius:8px}
.vb button:hover{border-color:var(--modra)}
.vb button.akt{border-color:var(--modra);background:#eef4fb;font-weight:600}
.vb button span{display:block;font-size:12.8px;color:var(--seda);font-weight:400;margin-top:2px}
.pk{display:flex;align-items:flex-start;gap:11px;cursor:pointer;font-size:15px;padding:12px 14px;border:1.8px solid var(--linka);border-radius:8px;margin-bottom:9px}
.pk:hover{border-color:var(--modra)}
.pk input{margin-top:3px;width:17px;height:17px;accent-color:var(--modra);flex:0 0 auto}
.pk i{display:block;font-style:normal;font-size:12.8px;color:var(--seda)}
.pk .c{margin-left:auto;white-space:nowrap;font-weight:700;font-size:14.4px}
.souh{background:var(--tma);color:#fff;border-radius:14px;overflow:hidden;position:sticky;top:94px}
.souh .hd{padding:26px 28px 20px}
.souh h3{font-size:20px;margin-bottom:4px}
.souh .pd{font-size:13.6px;color:var(--seda2);margin-bottom:18px}
.souh .rd{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14.6px;color:var(--seda2)}
.souh .rd b{color:#fff;font-weight:600;text-align:right;white-space:nowrap}
.souh .celkem{background:var(--modra);padding:20px 28px;display:flex;justify-content:space-between;align-items:baseline}
.souh .celkem span{font-size:14.4px;color:rgba(255,255,255,.9)}
.souh .celkem b{font-family:'Chivo',sans-serif;font-size:30px;font-weight:900}
.souh .pat{padding:20px 28px 26px}
.souh .poz{font-size:12.6px;color:#7a8791;line-height:1.55;margin-bottom:16px}
.souh .mini{border-top:1px solid rgba(255,255,255,.12);padding-top:18px}
.souh .vyzva{font-size:14.4px;color:#fff;margin-bottom:14px;line-height:1.5}
.souh .mini input,.souh .mini textarea{width:100%;min-height:44px;margin-bottom:9px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);color:#fff;font-size:15px;padding:11px 13px;font-family:inherit;border-radius:8px}
.souh .mini textarea{min-height:72px;resize:vertical}
.souh .mini input::placeholder,.souh .mini textarea::placeholder{color:rgba(255,255,255,.5)}
.souh .mini input:focus,.souh .mini textarea:focus{outline:0;border-color:var(--okr);background:rgba(255,255,255,.11)}
.souh .mini .dva{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.souh .mp{font-size:12.2px;color:#7a8791;text-align:center;margin-top:11px}
.souh .miniok{border-top:1px solid rgba(255,255,255,.12);padding-top:18px}
.souh .miniok b{display:block;font-family:'Chivo',sans-serif;font-size:19px;font-weight:900;color:#fff;margin-bottom:6px}
.souh .miniok p{font-size:13.8px;color:var(--seda2);line-height:1.55}
@media(max-width:980px){.kal{grid-template-columns:1fr;gap:22px}.souh{position:static}.vb--3{grid-template-columns:1fr}}
@media(max-width:560px){.vb{grid-template-columns:1fr}.souh .mini .dva{grid-template-columns:1fr}}

/* karty */
.karty{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ka{background:#fff;border:1px solid var(--linka);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.ka .f{aspect-ratio:16/10;overflow:hidden;background:var(--krem2)}
.ka .f img{width:100%;height:100%;object-fit:cover}
.ka .t{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.ka h3{font-size:20px;margin-bottom:6px}
.ka .cn{font-family:'Chivo',sans-serif;font-size:19px;font-weight:900;color:var(--modra);margin-bottom:11px}
.ka p{font-size:14.8px;color:var(--seda);margin-bottom:12px;flex:1}
.ka ul{list-style:none;font-size:14.4px;border-top:1px solid var(--linka);padding-top:11px}
.ka li{padding:7px 0 7px 22px;position:relative;color:var(--seda)}
.ka li::before{content:'';position:absolute;left:2px;top:15px;width:9px;height:9px;border-radius:50%;background:var(--modra)}
@media(max-width:1000px){.karty{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.karty{grid-template-columns:1fr}}

/* kroky povoleni */
.pov{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.po{display:grid;grid-template-columns:48px 1fr;gap:18px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);align-items:start}
.po .cn{font-family:'Chivo',sans-serif;font-size:22px;font-weight:900;color:var(--okr);line-height:1}
.po h3{font-size:18.5px;margin-bottom:6px}
.po p{font-size:14.8px;color:var(--seda2)}
.po .kdo{display:inline-block;font-size:11.6px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--tma);background:var(--okr);padding:3px 9px;border-radius:4px;margin-top:8px}
@media(max-width:840px){.pov{grid-template-columns:1fr}}

.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--linka);border-radius:12px;overflow:hidden}
.tbl th{background:var(--krem2);text-align:left;font-size:11.8px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--seda);padding:14px 18px}
.tbl td{padding:14px 18px;border-top:1px solid var(--linka);font-size:15.4px}
.tbl td.c{white-space:nowrap;font-weight:700;color:var(--modra);text-align:right}
@media(max-width:640px){
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block;width:100%}
  .tbl thead{display:none}
  .tbl tr{border-top:1px solid var(--linka);padding:8px 0}
  .tbl td{border:0;padding:5px 16px}
  .tbl td.c{text-align:left}
  .tbl td[data-l]:not(:first-child)::before{content:attr(data-l) ": ";color:var(--seda);font-weight:700}
}

.faq{max-width:860px}
.fq{border-top:1px solid var(--linka);padding:20px 0}
.fq:last-child{border-bottom:1px solid var(--linka)}
.fq h3{font-size:19.5px;margin-bottom:7px}
.fq p{color:var(--seda);font-size:15.4px}

.form{background:#fff;border:1px solid var(--linka);border-radius:14px;padding:30px}
label{display:block;font-size:12.4px;font-weight:700;margin-bottom:7px}
.pole{margin-bottom:15px}
.rada{display:grid;grid-template-columns:1fr 1fr;gap:13px}
input,select,textarea{width:100%;min-height:48px;border:1.6px solid var(--linka);padding:12px 14px;font-size:15.6px;font-family:inherit;background:#fff;color:var(--tma);border-radius:8px}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--modra);box-shadow:0 0 0 3px rgba(37,99,168,.16)}
textarea{min-height:104px;resize:vertical}
.pozn{font-size:12.8px;color:var(--seda);margin-top:10px;line-height:1.5}
.hotovo{background:var(--krem);border-left:4px solid var(--modra);padding:26px;border-radius:0 12px 12px 0}
.tm .hotovo{background:rgba(255,255,255,.05)}
.hotovo b{display:block;font-family:'Chivo',sans-serif;font-size:20px;font-weight:900;margin-bottom:5px}
.tm .hotovo b{color:#fff}
.kont{display:grid;grid-template-columns:.88fr 1.12fr;gap:42px;align-items:start}
.udaj{margin-bottom:17px}
.udaj b{display:block;font-size:11.8px;color:var(--seda);text-transform:uppercase;letter-spacing:.09em;margin-bottom:3px;font-weight:700}
@media(max-width:900px){.kont{grid-template-columns:1fr;gap:26px}.rada{grid-template-columns:1fr}}

footer{background:var(--tma2);color:var(--seda2);padding:52px 0 0}
footer h4{color:#fff;font-family:'Chivo',sans-serif;font-size:17px;font-weight:900;margin-bottom:13px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-bottom:30px}
footer p{font-size:14.6px;max-width:36ch}
footer ul{list-style:none;font-size:14.6px}
footer li{margin-bottom:8px}
footer a{color:var(--seda2);text-decoration:none}
footer a:hover{color:#fff}
footer .logo{margin-bottom:14px}
footer .logo b{color:#fff}
footer .logo small{color:#6fb0e8}
footer .copy{border-top:1px solid rgba(255,255,255,.1);padding:17px 0;font-size:13px;color:#6e7b85;text-align:center}
footer .copy a{color:#6fb0e8}
@media(max-width:900px){footer .cols{grid-template-columns:1fr;gap:24px}}

.telfab{position:fixed;right:16px;bottom:78px;z-index:70;width:54px;height:54px;border-radius:50%;background:var(--modra);color:#fff;display:none;place-items:center;text-decoration:none}
@media(max-width:1080px){.telfab{display:grid}}