:root{
  /* === LADĚNÍ PRŮHLEDNOSTI (0 = průhledné, 1 = plné) === */
  --shade:.62;      /* ztmavení slideshow za webem */
  --sec-a:.55;      /* pozadí sekcí Ceník, E-shop, Objednávka */
  --card-a:.72;     /* karty a rozbalovací dotazy */
  --nav-a:.85;      /* horní lišta */

  --bg:#0f1115; --panel:#181b22; --alt:#14171d; --text:#e9ecf1; --muted:#98a0ae;
  --accent:#ff5a1f; --accent2:#ff7a3d; --line:#262b35;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent2)}
code{background:var(--panel);padding:1px 6px;border-radius:4px}

.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:14px 5vw;background:rgba(15,17,21,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.logo{font-weight:800;font-size:1.3rem;color:#fff;text-decoration:none;letter-spacing:.5px}
.logo span{color:var(--accent);margin-left:4px}
.nav nav{display:flex;gap:20px;margin-left:auto}
.nav nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.nav nav a:hover{color:#fff}

.btn{display:inline-block;background:var(--accent);color:#fff;border:0;padding:14px 28px;border-radius:8px;font-weight:700;text-decoration:none;cursor:pointer;font-size:1rem;transition:.15s}
.btn:hover{background:var(--accent2);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-outline{background:transparent;border:2px solid var(--accent);color:#fff}
.btn-outline:hover{background:var(--accent)}

.hero{min-height:88vh;display:flex;align-items:center;padding:0 5vw;
  background:linear-gradient(120deg,rgba(15,17,21,.95) 30%,rgba(15,17,21,.55)),
  radial-gradient(circle at 80% 30%,#ff5a1f55,transparent 55%),#0f1115}
.hero-inner{max-width:720px}
.eyebrow{color:var(--accent);text-transform:uppercase;letter-spacing:2px;font-size:.85rem;font-weight:700;margin:0 0 12px}
h1{font-size:clamp(2.2rem,6vw,4.2rem);line-height:1.08;margin:0 0 18px}
.lead{font-size:1.2rem;color:var(--muted);max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

.section{padding:80px 5vw;max-width:1200px;margin:0 auto}
.alt{background:var(--alt);max-width:none}
.alt>*{max-width:1100px;margin-left:auto;margin-right:auto}
h2{font-size:2rem;margin:0 0 28px}
h2::after{content:"";display:block;width:56px;height:4px;background:var(--accent);margin-top:10px;border-radius:2px}
h3{margin:0 0 8px}
.note{color:var(--muted);font-size:.9rem}
.lead-dark{font-size:1.1rem;color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px;transition:.2s}
.card:hover{border-color:var(--accent);transform:translateY(-3px)}
.card p{margin:0;color:var(--muted)}

.price{width:100%;border-collapse:collapse;margin-top:14px}
.price td{padding:14px 8px;border-bottom:1px solid var(--line)}
.price td:last-child{text-align:right;color:var(--accent2);font-weight:700;white-space:nowrap}

.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.ph{aspect-ratio:4/3;border-radius:12px;display:grid;place-items:center;color:var(--muted);background:linear-gradient(135deg,#1c2029,#12151b);border:1px dashed var(--line)}

details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted);margin:10px 0 0}

.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:var(--muted)}
.form .full{grid-column:1/-1}
input,select,textarea{background:var(--panel);border:1px solid var(--line);color:var(--text);padding:12px;border-radius:8px;font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);border-color:transparent}

.footer{text-align:center;padding:30px;color:var(--muted);border-top:1px solid var(--line)}

@media(max-width:760px){
  .nav nav{display:none}
  .nav .btn{margin-left:auto}
  .form{grid-template-columns:1fr}
  .section{padding:56px 5vw}
}

/* === slideshow za celým webem === */
.site-bg{position:fixed;inset:0;z-index:-1;background:var(--bg);overflow:hidden}
.site-bg .sl{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.05);animation:slideshow 35s infinite}
.site-bg .sl:nth-child(1){background-image:url(img/bg-1.jpg)}
.site-bg .sl:nth-child(2){background-image:url(img/bg-2.jpg);animation-delay:7s}
.site-bg .sl:nth-child(3){background-image:url(img/bg-3.jpg);animation-delay:14s}
.site-bg .sl:nth-child(4){background-image:url(img/bg-4.jpg);animation-delay:21s}
.site-bg .sl:nth-child(5){background-image:url(img/bg-5.jpg);animation-delay:28s}
.site-bg::after{content:"";position:absolute;inset:0;background:rgba(11,13,17,var(--shade))}
@keyframes slideshow{0%{opacity:0;transform:scale(1.05)}4%,20%{opacity:1}24%{opacity:0;transform:scale(1.13)}100%{opacity:0}}
.site-bg .sl:nth-child(1){opacity:1}
@media(prefers-reduced-motion:reduce){.site-bg .sl{animation:none}}

body{background:transparent}
html{background:var(--bg)}
.hero{background:radial-gradient(circle at 80% 30%,#ff5a1f33,transparent 55%)}
.alt{background:rgba(12,14,18,var(--sec-a));backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.nav{background:rgba(15,17,21,var(--nav-a))}
.card,details{background:rgba(24,27,34,var(--card-a));backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;border:1px solid var(--line);transition:.25s}
.gallery img:hover{transform:scale(1.03);border-color:var(--accent)}

/* ladicí panel (zobrazí se po přidání ?ladit do adresy) */
.tune{position:fixed;left:16px;bottom:16px;z-index:60;background:#000c;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:.85rem;width:250px;backdrop-filter:blur(8px)}
.tune label{display:block;margin-bottom:10px}
.tune input{width:100%;padding:0;accent-color:var(--accent)}
.tune output{float:right;color:var(--accent2)}
.tune pre{margin:8px 0 0;font-size:.75rem;color:var(--muted);white-space:pre-wrap}

/* přepínač jazyků */
.langs{display:flex;gap:8px}
.langs button{width:28px;height:28px;padding:0;border-radius:50%;overflow:hidden;border:2px solid transparent;background:none;cursor:pointer;opacity:.55;transition:.2s}
.langs button:hover{opacity:1}
.langs button.on{opacity:1;border-color:var(--accent)}
.langs svg{width:100%;height:100%;display:block}
@media(max-width:760px){.nav{gap:12px}}

/* kontakt: firemní údaje + majitelé v postranním panelu */
.contact{display:grid;grid-template-columns:2fr 1fr;gap:20px;align-items:start}
.contact-main{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card .sub{font-size:.85rem;margin-top:2px}
.card a.tel{font-size:1.25rem;font-weight:700;text-decoration:none}
.people h3{margin-bottom:12px}
.people:hover{transform:none}
.person{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 0;border-top:1px solid var(--line)}
.person .who{flex:1;min-width:120px;display:flex;flex-direction:column;line-height:1.3}
.person small{color:var(--muted)}
.person .btn{white-space:nowrap}
.av{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.95rem;color:#fff;background:linear-gradient(140deg,var(--accent),#e63e0a);flex:none}
@media(max-width:900px){.contact{grid-template-columns:1fr}}