:root{
  --noc:#0e1220; --noc2:#171d33; --zlut:#f7c61b; --zlut-t:#d9a900; --krem:#f4ecd8; --papir:#faf7ef;
  --vltava:#2f6fb5; --pismo:#e9e6dc; --pismo-tm:#1d2236; --nav:68px;
}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{font-family:'Outfit',system-ui,sans-serif;background:var(--noc);color:var(--pismo);font-size:1.075rem;line-height:1.7;overflow-x:hidden}
img{max-width:100%}
a{color:var(--zlut)}
h1,h2,h3{letter-spacing:-.01em;line-height:1.1}

/* navigace */
.koa-nav{position:fixed;top:0;left:0;right:0;height:var(--nav);z-index:50;display:flex;align-items:center;transition:background .3s,box-shadow .3s}
.koa-nav.scrolled{background:rgba(14,18,32,.94);backdrop-filter:blur(8px);box-shadow:0 2px 20px rgba(0,0,0,.35)}
.koa-brand img{height:44px;width:auto;opacity:0;transition:opacity .3s}
.koa-nav.scrolled .koa-brand img{opacity:1}
.koa-menu{list-style:none;display:flex;gap:1.6rem;margin:0;padding:0;align-items:center}
.koa-menu a{color:#fff;text-decoration:none;font-weight:500;font-size:.95rem;letter-spacing:.04em;text-transform:uppercase;padding:.3rem 0;border-bottom:2px solid transparent}
.koa-menu a:hover,.koa-menu a.active{border-color:var(--zlut)}
.koa-menu a.koa-menu-cta{background:var(--zlut);color:var(--noc);padding:.45rem 1rem;border-radius:2rem;border:0;font-weight:700}
.koa-menu a.koa-menu-cta:hover{background:#fff}
.koa-burger{display:none;background:none;border:0;color:#fff;font-size:2rem;line-height:1}

/* hero */
.koa-hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;justify-content:center;text-align:center;overflow:hidden;padding:calc(var(--nav) + 2rem) 0 5rem}
.koa-hero-bg{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,18,32,.55) 0%,rgba(14,18,32,.1) 30%,rgba(14,18,32,.35) 60%,rgba(14,18,32,.9) 100%),url(../img/hero.webp) center 55%/cover no-repeat;transform:scale(1.04);animation:koaZoom 18s ease-out forwards}
@keyframes koaZoom{to{transform:scale(1)}}
.koa-hero-in{position:relative;z-index:2}
.koa-hero-logo{width:min(380px,62vw);height:auto;filter:drop-shadow(0 4px 24px rgba(0,0,0,.6))}
.koa-hero-sezona{font-size:clamp(1.1rem,2.4vw,1.6rem);font-weight:600;letter-spacing:.18em;text-transform:uppercase;margin:1.2rem 0 1.8rem;text-shadow:0 2px 12px rgba(0,0,0,.7);color:#fff}
.koa-hero-btns{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.koa-btn{background:var(--zlut);color:var(--noc);font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:3rem;padding:.8rem 2rem;border:2px solid var(--zlut);transition:all .2s}
.koa-btn:hover,.koa-btn:focus{background:#fff;border-color:#fff;color:var(--noc)}
.koa-btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.koa-btn-ghost:hover{background:#fff;color:var(--noc)}
.koa-btn-tmavy{background:var(--noc);border-color:var(--noc);color:#fff}
.koa-btn-tmavy:hover{background:var(--zlut);border-color:var(--zlut);color:var(--noc)}
.koa-btn-mini{padding:.4rem 1.1rem;font-size:.82rem}
.koa-dalsi{display:inline-flex;align-items:center;gap:1rem;margin-top:2.4rem;padding:.8rem 1.3rem;border-radius:1rem;background:rgba(14,18,32,.72);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.18);color:#fff;text-decoration:none;text-align:left;max-width:min(560px,100%);transition:border-color .2s,transform .2s}
.koa-dalsi:hover{border-color:var(--zlut);transform:translateY(-2px);color:#fff}
.koa-dalsi-datum{display:flex;flex-direction:column;align-items:center;background:var(--zlut);color:var(--noc);border-radius:.7rem;padding:.35rem .8rem;line-height:1;min-width:3.8rem}
.koa-dalsi-datum b{font-size:1.9rem;font-weight:800}
.koa-dalsi-datum i{font-style:normal;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.koa-dalsi-text{display:flex;flex-direction:column;line-height:1.25}
.koa-dalsi-text small{text-transform:uppercase;letter-spacing:.12em;font-size:.72rem;opacity:.75}
.koa-dalsi-text strong{font-size:1.1rem}
.koa-dalsi>.bi{font-size:1.6rem;color:var(--zlut)}
.koa-scroll{position:absolute;bottom:1.2rem;left:50%;transform:translateX(-50%);color:#fff;font-size:1.8rem;z-index:2;animation:koaBounce 2s infinite}
@keyframes koaBounce{50%{transform:translate(-50%,6px)}}

/* sekce */
.koa-sekce{padding:clamp(3.5rem,8vw,6.5rem) 0}
.koa-svetla{background:var(--papir);color:var(--pismo-tm)}
.koa-svetla a:not(.btn){color:#8a6a00}
.koa-tmava{background:var(--noc2)}
.koa-titul{text-align:center;margin-bottom:2.6rem}
.koa-titul-l{text-align:left;margin-bottom:1.6rem}
.koa-titul span{display:block;font-weight:600;font-size:.85rem;letter-spacing:.22em;text-transform:uppercase;color:var(--zlut-t);margin-bottom:.5rem}
.koa-tmava .koa-titul span,.koa-zahrada .koa-titul span,.koa-partneri .koa-titul span{color:var(--zlut)}
.koa-titul h2{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:800;margin:0}
.koa-oznameni{background:var(--zlut);border:0;color:var(--noc);font-weight:600;text-align:center}
.koa-prazdno{text-align:center;padding:2rem 0}

/* karty koncertů */
.koa-karta{background:#fff;border-radius:1rem;overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:0 6px 24px rgba(14,18,32,.12);transition:transform .25s,box-shadow .25s}
.koa-karta:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(14,18,32,.22)}
.koa-karta-img{position:relative;display:block;aspect-ratio:1/1;background:var(--noc2);overflow:hidden}
.koa-karta-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.koa-karta:hover .koa-karta-img img{transform:scale(1.04)}
.koa-karta-img img.koa-nahrada{opacity:.55}
.koa-stitek{position:absolute;top:1rem;left:1rem;background:#c1272d;color:#fff;font-weight:700;text-transform:uppercase;font-size:.78rem;letter-spacing:.1em;padding:.3rem .8rem;border-radius:2rem}
.koa-karta-tel{padding:1.3rem 1.4rem 1.2rem;display:flex;flex-direction:column;flex:1}
.koa-karta-datum{color:#8a6a00;font-weight:600;font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;margin:0 0 .3rem}
.koa-karta h3{font-size:1.45rem;font-weight:700;margin:0 0 .6rem}
.koa-karta h3 a{color:var(--pismo-tm)!important;text-decoration:none}
.koa-karta h3 a:hover{color:#8a6a00!important}
.koa-karta-popis{font-size:.95rem;color:#4b5068;margin:0 0 1rem}
.koa-karta-pata{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:.6rem;font-size:.9rem;color:#4b5068}
.koa-vyp{font-weight:700;color:#c1272d;text-transform:uppercase;font-size:.85rem}

/* o akci, zahrada */
.koa-foto-velka{width:100%;border-radius:1rem;box-shadow:0 16px 40px rgba(0,0,0,.45);aspect-ratio:4/3;object-fit:cover}
.koa-citat{border-left:4px solid var(--zlut);padding:.4rem 0 .4rem 1.3rem;margin:2rem 0 0}
.koa-citat p{font-size:1.2rem;font-style:italic;margin:0 0 .3rem}
.koa-citat cite{color:var(--zlut);font-style:normal;font-weight:600;font-size:.95rem}
.koa-zahrada{position:relative;background:linear-gradient(rgba(14,18,32,.86),rgba(14,18,32,.9)),url(../img/foto/koa-01.webp) center/cover fixed}
.koa-zahrada p{font-size:1.15rem}

/* galerie */
.koa-galerie{display:grid;grid-template-columns:repeat(4,1fr);gap:.6rem;grid-auto-flow:dense}
.koa-foto{display:block;overflow:hidden;border-radius:.6rem;aspect-ratio:3/2;background:var(--noc2)}
.koa-foto img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.koa-foto:hover img{transform:scale(1.06)}
.koa-foto-prvni{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}
.koa-skryta{display:none}
.koa-galerie.vse .koa-skryta{display:block}

/* kontakt */
.koa-kontakt-h{font-size:1.5rem;font-weight:700;margin-bottom:1.2rem}
.koa-kontakt{list-style:none;padding:0;margin:0}
.koa-kontakt li{display:flex;gap:.9rem;align-items:center;margin-bottom:.9rem;font-size:1.15rem}
.koa-kontakt .bi{color:var(--zlut);font-size:1.3rem}
.koa-kontakt a{color:#fff;text-decoration:none}
.koa-kontakt a:hover{color:var(--zlut)}
.koa-mapa{height:100%;min-height:320px;border-radius:1rem;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.koa-mapa iframe{width:100%;height:100%;min-height:320px;border:0;display:block}

/* partneři */
.koa-partneri{background:var(--noc)}
.koa-partneri-rada{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:1.4rem}
.koa-partner{display:flex;align-items:center;justify-content:center;background:#fff;border-radius:.8rem;padding:1rem 1.4rem;height:110px;min-width:170px}
.koa-partner-tmavy{background:#000}
.koa-partner img{max-height:80px;max-width:190px;width:auto;height:auto;object-fit:contain}
a.koa-partner .koa-partner-txt,.koa-partner-txt{font-weight:800;font-size:1.7rem;letter-spacing:-.02em;color:#fff}
.koa-partner-txt::first-letter{color:var(--zlut)}
a.koa-partner{transition:transform .2s}
a.koa-partner:hover{transform:translateY(-3px)}

.koa-pata{background:#080b15;padding:1.4rem 0;font-size:.9rem;color:#9aa0b8}
.koa-pata a{color:#cfd3e4}

/* odhalení */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .koa-hero-bg{animation:none;transform:none}.koa-scroll{animation:none}
}

@media (max-width:991.98px){
  .koa-burger{display:block}
  .koa-brand img{opacity:1}
  .koa-menu{position:fixed;top:var(--nav);left:0;right:0;background:rgba(14,18,32,.98);flex-direction:column;align-items:stretch;gap:0;padding:.5rem 1rem 1.2rem;display:none}
  .koa-menu.open{display:flex}
  .koa-menu li a{display:block;padding:.9rem 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .koa-menu a.koa-menu-cta{text-align:center;margin-top:.8rem;border-radius:2rem}
  .koa-galerie{grid-template-columns:repeat(3,1fr)}
  .koa-zahrada{background-attachment:scroll}
}
@media (max-width:575.98px){
  body{font-size:1rem}
  .container,.container-xl{padding-left:16px;padding-right:16px}
  .koa-galerie{grid-template-columns:repeat(2,1fr);gap:.4rem}
  .koa-hero{padding-bottom:4.5rem}
  .koa-hero-btns .btn{width:100%}
  .koa-dalsi{padding:.7rem 1rem;gap:.7rem}
  .koa-dalsi-text strong{font-size:1rem}
  .koa-partner{min-width:140px;height:90px}
}