/* GB GALERIA — strona główna 2D */
:root{
  --bg:#0d0d0e; --bg2:#141416; --ink:#ece7dd; --mute:rgba(236,231,221,.62); --faint:rgba(236,231,221,.12);
  --gold:#c9a464; --gold-d:#b08d4f; --glass:rgba(13,13,14,.6);
  --serif:'Cormorant Garamond',Georgia,serif; --sans:'Montserrat',system-ui,sans-serif;
  --pad:clamp(16px,4vw,56px); --max:1320px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{background:var(--bg);color:var(--ink);font:400 15px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

.kicker{font:600 10px/1 var(--sans);letter-spacing:.38em;text-transform:uppercase;color:var(--gold)}
.btn{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--faint);border-radius:999px;padding:11px 18px;
  font:600 11px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;transition:background .25s,border-color .25s,color .25s,transform .2s;white-space:nowrap}
.btn svg{width:15px;height:15px;transition:transform .25s}
.btn:hover svg{transform:translateX(3px)}
.btn.gold{background:var(--gold-d);border-color:var(--gold-d);color:#141210}
.btn.gold:hover{background:var(--gold)}
.btn.ghost{background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.btn.ghost:hover{border-color:rgba(201,164,100,.6)}
.btn.big{padding:16px 24px;font-size:12px}
.btn:active{transform:scale(.97)}

/* nawigacja */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;gap:24px;padding:14px var(--pad);transition:background .35s,border-color .35s,padding .35s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(13,13,14,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--faint);padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand svg{width:22px;height:26px;color:var(--ink)}
.brand span{font:600 11px/1 var(--sans);letter-spacing:.28em;text-transform:uppercase}
.nav nav{display:flex;gap:26px}
.nav nav a{font:500 11px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--mute);transition:color .2s}
.nav nav a:hover{color:var(--ink)}
@media (max-width:760px){.nav nav{display:none}.brand span{display:none}}

/* hero */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden;display:flex;align-items:flex-end}
.slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.8s ease;transform:scale(1.06)}
.slides img.on{opacity:1;animation:kb 14s ease-out forwards}
@keyframes kb{from{transform:scale(1.12)}to{transform:scale(1.02)}}
.shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,14,.55) 0%,rgba(13,13,14,0) 26%,rgba(13,13,14,.15) 50%,rgba(13,13,14,.88) 88%,var(--bg) 100%)}
.hero-in{position:relative;z-index:2;width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad) clamp(64px,11vh,120px)}
.hero h1{font:500 clamp(54px,10vw,148px)/.9 var(--serif);letter-spacing:-.015em;margin:20px 0 22px}
.hero h1 em{color:var(--gold)}
.hero .lead{max-width:560px;color:rgba(236,231,221,.82);font-size:clamp(14px,1.4vw,17px);margin-bottom:32px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-cap{position:absolute;z-index:2;right:var(--pad);bottom:clamp(64px,11vh,120px);text-align:right;transition:opacity .6s}
.hero-cap b{display:block;font:italic 500 22px/1.1 var(--serif)}
.hero-cap span{font:500 9px/1 var(--sans);letter-spacing:.3em;text-transform:uppercase;color:var(--mute)}
@media (max-width:900px){.hero-cap{display:none}}
.scroll{position:absolute;z-index:2;left:50%;bottom:22px;width:22px;height:36px;border:1px solid var(--faint);border-radius:12px;transform:translateX(-50%)}
.scroll i{position:absolute;left:50%;top:7px;width:2px;height:7px;background:var(--ink);border-radius:2px;transform:translateX(-50%);animation:sc 1.8s infinite}
@keyframes sc{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,12px)}}

/* sekcje */
section{position:relative}
.exhibits,.about,.contact{max-width:var(--max);margin:0 auto;padding:clamp(80px,12vw,150px) var(--pad) 0}
.sec-h h2,.about h2,.contact h2,.enter3d h2{font:500 clamp(38px,5.4vw,72px)/1 var(--serif);margin:18px 0 0;letter-spacing:-.01em}
.toc{list-style:none;display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--faint)}
.toc a{display:inline-flex;gap:10px;align-items:baseline;font:italic 500 21px/1.3 var(--serif);color:var(--mute);transition:color .2s}
.toc a:hover{color:var(--ink)}
.toc i{font:600 10px/1 var(--sans);font-style:normal;letter-spacing:.14em;color:var(--gold)}

.room{padding-top:clamp(70px,9vw,120px)}
.room-h{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr) auto;gap:20px 48px;align-items:end;margin-bottom:28px}
.room-h h3{font:500 clamp(32px,4vw,54px)/1.02 var(--serif);margin-top:14px}
.room-h p{color:var(--mute);max-width:520px}
.link3d{display:inline-flex;align-items:center;gap:8px;font:600 10px/1 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--gold);padding:10px 0;border-bottom:1px solid rgba(201,164,100,.35);white-space:nowrap}
.link3d svg{width:14px;height:14px;transition:transform .25s}
.link3d:hover svg{transform:translateX(4px)}
@media (max-width:900px){.room-h{grid-template-columns:1fr}.link3d{justify-self:start}}

/* siatka „justified” — flex jako zapas, JS dopasowuje rzędy */
.jgrid{display:flex;flex-wrap:wrap;gap:12px}
.jgrid .ph{flex-grow:calc(var(--a) * 100);flex-basis:calc(var(--a) * 300px);max-width:100%}
.jgrid.js .ph{flex:none}
.ph{position:relative;display:block;overflow:hidden;background:var(--bg2);border-radius:2px;cursor:zoom-in}
.ph img{display:block;width:100%;height:100%;object-fit:cover;transition:transform 1.1s cubic-bezier(.2,.8,.2,1),filter .6s}
.ph:hover img{transform:scale(1.035)}
.ph .cap{position:absolute;left:0;right:0;bottom:0;padding:40px 18px 16px;background:linear-gradient(transparent,rgba(0,0,0,.72));display:flex;flex-direction:column;gap:4px;
  opacity:0;transform:translateY(8px);transition:opacity .35s,transform .35s}
.ph:hover .cap,.ph:focus-visible .cap{opacity:1;transform:none}
.ph .cap b{font:500 24px/1.1 var(--serif)}
.ph .cap i{font:600 9px/1 var(--sans);font-style:normal;letter-spacing:.26em;text-transform:uppercase;color:rgba(236,231,221,.75)}
@media (hover:none){.ph .cap{opacity:1;transform:none;padding-top:28px}.ph .cap b{font-size:20px}}
.ph:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* zaproszenie do 3D */
.enter3d{margin:clamp(90px,12vw,160px) 0 0;min-height:70vh;display:flex;align-items:center;overflow:hidden}
.enter3d>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32;filter:saturate(.8)}
.enter3d:before{content:'';position:absolute;inset:0;z-index:1;background:radial-gradient(70% 90% at 30% 50%,rgba(13,13,14,.3),var(--bg) 92%)}
.enter3d .in{position:relative;z-index:2;max-width:var(--max);margin:0 auto;padding:0 var(--pad);width:100%}
.enter3d p{max-width:500px;color:var(--mute);margin:20px 0 32px}

/* o mnie */
.about{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px 80px}
.about p{color:rgba(236,231,221,.8);font-size:clamp(15px,1.3vw,18px);max-width:640px;margin-top:22px}
.about h2{margin-bottom:6px}
.about aside{border-left:1px solid var(--faint);padding-left:36px;align-self:end}
.about ul{list-style:none;margin-top:20px}
.about li{font:italic 500 22px/1.35 var(--serif);padding:14px 0;border-bottom:1px solid var(--faint)}
@media (max-width:900px){.about{grid-template-columns:1fr}.about aside{border-left:0;padding-left:0}}

/* kontakt */
.contact{padding-bottom:clamp(80px,10vw,130px)}
.contact .links{display:flex;flex-direction:column;gap:6px;margin:32px 0 26px}
.contact .big{font:500 clamp(26px,3.6vw,46px)/1.15 var(--serif);width:fit-content;background:linear-gradient(var(--gold),var(--gold)) 0 100%/0 1px no-repeat;transition:background-size .4s}
.contact .big:hover{background-size:100% 1px}
.soc{display:flex;gap:8px;flex-wrap:wrap}
.soc a{font:600 10px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;padding:12px 16px;border:1px solid var(--faint);border-radius:999px;transition:border-color .2s}
.soc a:hover{border-color:var(--gold)}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;max-width:var(--max);margin:0 auto;padding:26px var(--pad) max(26px,env(safe-area-inset-bottom));border-top:1px solid var(--faint);
  font:500 10px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.foot a:hover{color:var(--ink)}

/* pojawianie się */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* lightbox */
.lb{position:fixed;inset:0;z-index:50;background:rgba(8,8,9,.96);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .35s}
.lb.on{opacity:1}
.lb[hidden]{display:none}
.lb figure{display:flex;flex-direction:column;align-items:center;max-width:100%;max-height:100%;padding:64px 80px 24px}
.lb img{max-width:min(100%,1800px);max-height:calc(100svh - 230px);object-fit:contain;transition:opacity .35s;box-shadow:0 30px 90px rgba(0,0,0,.6)}
.lb figcaption{text-align:center;margin-top:22px;max-width:640px}
.lb .r{display:block;font:600 9px/1 var(--sans);letter-spacing:.32em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.lb b{display:block;font:500 30px/1.05 var(--serif)}
.lb #lbS{display:block;font:600 9px/1 var(--sans);letter-spacing:.26em;text-transform:uppercase;color:var(--mute);margin-top:8px}
.lb p{color:var(--mute);font-size:13px;margin-top:10px}
.lb .row{display:flex;gap:18px;justify-content:center;align-items:center;margin-top:14px;font:600 10px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--mute)}
.lb .row a{color:var(--gold)}
.lb button{position:absolute;width:48px;height:48px;border-radius:50%;border:1px solid var(--faint);background:var(--glass);color:var(--ink);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .2s}
.lb button:hover{border-color:var(--gold)}
.lb button svg{width:18px;height:18px}
.lb-x{top:max(16px,env(safe-area-inset-top));right:16px}
.lb-nav.prev{left:18px;top:50%;transform:translateY(-50%)}
.lb-nav.next{right:18px;top:50%;transform:translateY(-50%)}
@media (max-width:700px){.lb figure{padding:60px 10px 20px}.lb-nav{top:auto!important;bottom:18px;transform:none!important}.lb-nav.prev{left:16px}.lb-nav.next{right:16px}.lb img{max-height:calc(100svh - 280px)}}
.hero .kicker,.hero h1,.hero .lead{text-shadow:0 2px 24px rgba(0,0,0,.45)}
.hero .kicker{color:#e3c58c}