/* VENTIL — instalatérství & topenářství (ukázkový web webpj.cz) */
:root{--coal:#14181d;--steel:#1d242c;--paper:#f2f4f6;--card:#ffffff;--ink:#171d23;--dim:#5f6b76;--line:#dde3e8;--water:#2f9be0;--water-d:#1f7fbd;--flame:#ff6b2c;--flame-d:#e5551a;--yellow:#ffd23c}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,.disp{font-family:'Anton',sans-serif;font-weight:400;line-height:1.02;letter-spacing:.01em;text-transform:uppercase}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.ey{display:inline-block;font-weight:800;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--flame);margin-bottom:14px}
.ey.w{color:var(--water)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;font-size:15px;background:var(--flame);color:#fff;padding:15px 28px;transition:.2s;border:0;cursor:pointer;text-transform:uppercase;letter-spacing:.04em;clip-path:polygon(0 0,calc(100% - 12px) 0,100% 100%,12px 100%)}
.btn:hover{background:var(--flame-d)}
.btn.wa{background:var(--water)}
.btn.wa:hover{background:var(--water-d)}
.btn.dark{background:var(--coal)}
.btn.dark:hover{background:#2c343d}
.btn.yel{background:var(--yellow);color:var(--coal)}
.btn.yel:hover{background:#f0be16}
section{padding:74px 0}

/* demo strip (schová ji wpjbar) */
.demo{background:#0b0e11;color:#fff;text-align:center;font-size:13px;padding:9px 16px}
.demo a{color:#ffc59d;text-decoration:underline}

/* hazard stripe */
.hz{height:10px;background:repeating-linear-gradient(-45deg,var(--yellow) 0 16px,var(--coal) 16px 32px)}

/* nav */
header.nav{position:sticky;top:0;z-index:300;background:var(--coal);color:#fff}
.nav .row{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-family:'Anton',sans-serif;font-size:27px;letter-spacing:.02em;display:flex;align-items:center;gap:10px;text-transform:uppercase}
.logo .vt{color:var(--water)}
.logo .tp{color:var(--flame)}
.nav nav{display:flex;gap:30px;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.06em}
.nav nav a{color:#9aa7b2;transition:.2s}
.nav nav a:hover,.nav nav a.on{color:#fff}
.nav .tel{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px}
.nav .tel .b{background:var(--flame);padding:9px 16px;clip-path:polygon(0 0,calc(100% - 9px) 0,100% 100%,9px 100%)}
.burger{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:#fff}
.mm{display:none}

/* split hero */
.split{display:grid;grid-template-columns:1fr 1fr;min-height:520px}
.half{position:relative;display:flex;align-items:flex-end;overflow:hidden;padding:54px 48px;color:#fff}
.half::before{content:"";position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .6s}
.half:hover::before{transform:scale(1.05)}
.half.voda::before{background-image:linear-gradient(180deg,rgba(10,30,48,.25),rgba(8,24,38,.88)),url('img/voda.jpg')}
.half.topeni::before{background-image:linear-gradient(180deg,rgba(40,18,6,.25),rgba(30,13,4,.88)),url('img/topeni.jpg')}
.half .in{position:relative;max-width:430px}
.half .tag{display:inline-block;font-weight:800;font-size:12px;letter-spacing:.18em;text-transform:uppercase;padding:6px 13px;margin-bottom:14px}
.half.voda .tag{background:var(--water)}
.half.topeni .tag{background:var(--flame)}
.half h2{font-size:clamp(1.9rem,3.4vw,3rem);margin-bottom:10px;color:#fff}
.half p{color:#d8dfe5;font-size:15.5px;margin-bottom:20px}
.herohead{background:var(--coal);color:#fff;text-align:center;padding:58px 24px 46px}
.herohead h1{font-size:clamp(2.4rem,6vw,4.6rem);color:#fff;max-width:900px;margin:0 auto 14px}
.herohead h1 .vt{color:var(--water)}
.herohead h1 .tp{color:var(--flame)}
.herohead p{color:#9aa7b2;max-width:60ch;margin:0 auto;font-size:1.06rem}

/* pohotovost band */
.sos{background:var(--yellow);color:var(--coal)}
.sos .in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;flex-wrap:wrap}
.sos .l{display:flex;align-items:center;gap:16px;font-weight:700;font-size:15.5px}
.sos .l .ic{font-size:30px}
.sos .l b{display:block;font-family:'Anton';font-size:1.35rem;text-transform:uppercase;letter-spacing:.02em;font-weight:400}
.sos .tel{font-family:'Anton',sans-serif;font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:.03em;background:var(--coal);color:var(--yellow);padding:10px 24px;white-space:nowrap}

/* section head */
.sh{max-width:720px;margin:0 auto 42px;text-align:center}
.sh h2{font-size:clamp(1.9rem,4vw,3rem);margin-bottom:12px}
.sh p{color:var(--dim);font-size:1.03rem}
.sh.left{text-align:left;margin:0 0 36px}

/* numbered services */
.ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--coal);background:var(--card)}
.ns{padding:34px 30px;border-right:2px solid var(--coal);border-bottom:2px solid var(--coal);position:relative;transition:.2s;background:var(--card)}
.ns:nth-child(3n){border-right:0}
.ns:nth-last-child(-n+3){border-bottom:0}
.ns:hover{background:var(--coal);color:#fff}
.ns:hover p{color:#b6c1cb}
.ns .no{font-family:'Anton';font-size:.95rem;color:var(--flame);letter-spacing:.1em}
.ns.w .no{color:var(--water)}
.ns h3{font-size:1.35rem;margin:10px 0 10px}
.ns p{color:var(--dim);font-size:14.5px;transition:.2s}

/* steps zásahu */
.zas{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.z{background:var(--coal);color:#fff;padding:28px 24px;position:relative}
.z .n{font-family:'Anton';font-size:2.4rem;color:var(--yellow)}
.z h3{font-size:1.05rem;margin:10px 0 8px;color:#fff}
.z p{font-size:13.5px;color:#9aa7b2}

/* ceník table */
.ctab{width:100%;border-collapse:collapse;background:var(--card);border:2px solid var(--coal)}
.ctab th{font-family:'Anton';font-weight:400;text-transform:uppercase;letter-spacing:.05em;text-align:left;background:var(--coal);color:#fff;padding:15px 20px;font-size:15px}
.ctab td{padding:15px 20px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
.ctab tr:last-child td{border-bottom:0}
.ctab .p{font-weight:800;white-space:nowrap;text-align:right}
.ctab .note{color:var(--dim);font-size:13px;display:block;margin-top:2px}
.ctab tbody tr:hover{background:#f7fafc}
.legend{display:flex;gap:20px;flex-wrap:wrap;margin:18px 0 0;font-size:13.5px;color:var(--dim)}

/* dual band voda/topeni cta */
.dualcta{display:grid;grid-template-columns:1fr 1fr}
.dc{padding:clamp(40px,5vw,64px) 48px;color:#fff}
.dc.voda{background:linear-gradient(135deg,#0d3a57,var(--water-d))}
.dc.topeni{background:linear-gradient(135deg,#4a1c05,var(--flame-d))}
.dc h2{font-size:clamp(1.7rem,3vw,2.4rem);color:#fff;margin-bottom:10px}
.dc p{color:rgba(255,255,255,.82);margin-bottom:22px;max-width:44ch;font-size:15px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:2px solid var(--coal)}
.stat{background:var(--card);padding:30px 24px;text-align:center;border-right:2px solid var(--coal)}
.stat:last-child{border-right:0}
.stat b{font-family:'Anton';font-size:2.4rem;display:block;color:var(--flame)}
.stat:nth-child(odd) b{color:var(--water)}
.stat span{font-size:13.5px;color:var(--dim);font-weight:600}

/* kontakt */
.kgrid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.ib{background:var(--card);border:2px solid var(--coal);padding:26px}
.ib+.ib{margin-top:16px}
.ib .l{font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.14em;color:var(--flame);margin-bottom:6px}
.ib .v{font-family:'Anton';font-size:1.4rem;text-transform:uppercase;letter-spacing:.02em}
.ib .v.lc{font-family:'Inter';font-weight:700;font-size:1.1rem;text-transform:none}
.ib p{font-size:14px;color:var(--dim);margin-top:5px}

/* form */
.form{background:var(--card);border:2px solid var(--coal);padding:34px;box-shadow:10px 10px 0 var(--yellow)}
.form h3{font-size:1.6rem;margin-bottom:18px}
.fg{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.fd{display:flex;flex-direction:column;gap:6px}
.fd.full{grid-column:1/-1}
.fd label{font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--dim)}
.fd{min-width:0}
.fd input,.fd select,.fd textarea{width:100%;min-width:0;padding:13px 15px;border:2px solid var(--line);background:#fbfcfd;font-family:inherit;font-size:15px;color:var(--ink)}
.ib{overflow-wrap:anywhere}
.fd input:focus,.fd select:focus,.fd textarea:focus{outline:none;border-color:var(--water)}
.fd textarea{min-height:110px;resize:vertical}
.fnote{font-size:12.5px;color:var(--dim);margin-top:12px}
.done{display:none;text-align:center;padding:32px 20px}
.done h3{font-size:1.6rem;margin-bottom:8px}
.done p{color:var(--dim)}

/* footer */
.foot{background:var(--coal);color:#9aa7b2;padding:58px 0 30px;font-size:14.5px}
.foot .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:38px;margin-bottom:36px}
.foot .logo{margin-bottom:12px}
.foot h4{color:#fff;font-size:12.5px;text-transform:uppercase;letter-spacing:.14em;margin-bottom:14px}
.foot ul{list-style:none;display:grid;gap:9px}
.foot a:hover{color:#fff}
.foot .copy{border-top:1px solid #2a323b;padding-top:22px;font-size:13px;color:#6f7d89}
.foot .copy a{color:var(--yellow);text-decoration:underline}

/* pagehead */
.phead{background:var(--coal);color:#fff;padding:56px 0 46px;text-align:center}
.phead h1{font-size:clamp(2.3rem,5vw,3.8rem);color:#fff;margin-bottom:12px}
.phead h1 .vt{color:var(--water)}
.phead h1 .tp{color:var(--flame)}
.phead p{color:#9aa7b2;max-width:58ch;margin:0 auto;font-size:1.04rem}

/* mobile call fab */
.callfab{display:none;position:fixed;right:16px;bottom:86px;z-index:400;background:var(--flame);color:#fff;width:58px;height:58px;border-radius:50%;place-items:center;font-size:24px;box-shadow:0 14px 30px rgba(0,0,0,.35)}

@media(max-width:960px){
 .nav nav,.nav .tel .lbl{display:none}
 .burger{display:block}
 .nav .tel .b{padding:8px 12px;font-size:14px}
 .mm.open{display:flex;flex-direction:column;position:fixed;top:72px;left:0;right:0;background:var(--coal);padding:8px 24px 18px;z-index:310;border-bottom:4px solid var(--yellow)}
 .mm.open a{padding:14px 0;border-bottom:1px solid #2a323b;color:#dfe6ec;font-weight:700;text-transform:uppercase;font-size:14.5px;letter-spacing:.06em}
 .split{grid-template-columns:1fr}
 .half{min-height:340px;padding:40px 28px}
 .ngrid{grid-template-columns:1fr 1fr}
 .ns:nth-child(3n){border-right:2px solid var(--coal)}
 .ns:nth-child(2n){border-right:0}
 .ns:nth-last-child(-n+3){border-bottom:2px solid var(--coal)}
 .ns:nth-last-child(-n+2){border-bottom:0}
 .zas{grid-template-columns:1fr 1fr}
 .stats{grid-template-columns:1fr 1fr}
 .stat:nth-child(2){border-right:0}
 .stat:nth-child(-n+2){border-bottom:2px solid var(--coal)}
 .dualcta{grid-template-columns:1fr}
 .kgrid{grid-template-columns:1fr}
 .foot .cols{grid-template-columns:1fr;gap:26px}
 section{padding:54px 0}
 .callfab{display:grid}
}
@media(max-width:620px){
 .ngrid{grid-template-columns:1fr}
 .ns{border-right:0!important;border-bottom:2px solid var(--coal)!important}
 .ns:last-child{border-bottom:0!important}
 .zas{grid-template-columns:1fr}
 .fg{grid-template-columns:1fr}
 .sos .in{justify-content:center;text-align:center}
 .ctab th,.ctab td{padding:12px 12px}
 .ctab .note{font-size:12px}
}