/* Variante 1 – minimal, schwarz/weiß, Raleway + Lato wie auf t-kaya.de */
:root{--bg:#000;--bg2:#0a0a0a;--fg:#fff;--mute:#8d8d8d;--faint:#5c5c5c;--line:rgba(255,255,255,.14);
  --h:"Raleway",system-ui,sans-serif;--b:"Lato",system-ui,sans-serif;--w:1180px;--gx:clamp(20px,5vw,60px)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--fg);font:300 16px/1.7 var(--b);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-family:var(--h);font-weight:300}
p{margin:0}
.wrap{max-width:var(--w);margin-inline:auto;padding-inline:var(--gx)}
.cap{font-family:var(--h);font-size:.68rem;font-weight:500;letter-spacing:.3em;text-transform:uppercase;color:var(--mute)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.demo{background:#111;color:#8a8a8a;font-size:.7rem;letter-spacing:.06em;text-align:center;padding:7px var(--gx)}
.demo b{color:#c9c9c9;font-weight:400}

/* header */
.hd{position:sticky;top:0;z-index:50;background:#000;border-bottom:1px solid transparent;transition:border-color .3s}
.hd.stuck{border-bottom-color:var(--line)}
.hd .wrap{display:flex;align-items:center;height:76px;gap:28px}
.logo{margin-right:auto;display:block}
.logo img{height:15px;width:auto}
.nav{display:flex;gap:34px}
.nav a{font-family:var(--h);font-size:.7rem;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--mute);padding:8px 0;position:relative;transition:color .25s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:#fff;transform:scaleX(0);transition:transform .3s}
.nav a:hover{color:#fff}.nav a:hover::after{transform:scaleX(1)}
.lang{display:flex;gap:2px;font-family:var(--h);font-size:.62rem;letter-spacing:.2em}
.lang button{background:none;border:0;color:var(--faint);cursor:pointer;padding:6px 5px;font:inherit;letter-spacing:inherit}
.lang button[aria-pressed="true"]{color:#fff}
.lang i{color:var(--faint);font-style:normal;align-self:center}
.burger{display:none;background:none;border:0;width:36px;height:36px;padding:8px;cursor:pointer;margin-right:-8px}
.burger i{display:block;height:1px;background:#fff;margin:6px 0;transition:.3s}
.open .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.open .burger i:nth-child(2){opacity:0}
.open .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:820px){
  .burger{display:block}
  .nav{position:fixed;left:0;right:0;top:0;padding:110px var(--gx) 40px;flex-direction:column;gap:4px;background:#000;border-bottom:1px solid var(--line);transform:translateY(-105%);transition:transform .45s cubic-bezier(.22,.61,.36,1)}
  .nav a{font-size:1.1rem;letter-spacing:.18em;padding:12px 0}
  .open .nav{transform:none}
  .hd .wrap{position:relative;z-index:2}
}

/* hero – wie bisher: Name, Zeile, drei hohe Kacheln */
.hero{padding:clamp(70px,10vw,120px) 0 clamp(40px,6vw,70px);text-align:center}
.hero h1{font-size:clamp(2.2rem,6.5vw,4.4rem);font-weight:200;letter-spacing:.16em;text-transform:uppercase;line-height:1.1}
.hero .cap{display:block;margin-top:22px;color:var(--mute)}
.hero .cap span{white-space:nowrap}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:clamp(48px,7vw,84px)}
.tile{position:relative;aspect-ratio:1/2;overflow:hidden;background:#111;display:block}
.tile img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05);transition:filter .7s,transform 1.4s cubic-bezier(.22,.61,.36,1)}
.tile:hover img{filter:grayscale(0);transform:scale(1.04)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.78))}
.tile span{position:absolute;left:0;right:0;bottom:26px;z-index:2;font-family:var(--h);font-size:.72rem;font-weight:500;letter-spacing:.32em;text-transform:uppercase;color:#fff;text-align:center}
@media(max-width:700px){.tiles{grid-template-columns:1fr 1fr}.tile:nth-child(3){grid-column:1/-1;aspect-ratio:2/1}}

/* sections */
.sec{padding:clamp(72px,10vw,130px) 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:clamp(30px,4vw,48px)}
.sec-head h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:300;letter-spacing:.14em;text-transform:uppercase}
.sec-head .cap{color:var(--faint)}

/* projekte */
.filters{display:flex;flex-wrap:wrap;gap:6px 26px;margin-bottom:26px}
.filters button{background:none;border:0;padding:6px 0;cursor:pointer;font-family:var(--h);font-size:.68rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--faint);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.filters button:hover{color:var(--mute)}
.filters button.on{color:#fff;border-bottom-color:#fff}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
@media(max-width:960px){.pgrid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.pgrid{grid-template-columns:repeat(2,1fr)}}
.pi{position:relative;aspect-ratio:4/3;overflow:hidden;background:#0d0d0d;cursor:zoom-in;display:block;border:0;padding:0}
.pi img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);opacity:0;transition:opacity .6s,filter .5s,transform 1s cubic-bezier(.22,.61,.36,1)}
.pi img.ld{opacity:1}
.pi:hover img{filter:grayscale(0);transform:scale(1.04)}
.pi.contain img{object-fit:contain;background:#f4f4f4;padding:8%}
.pi figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));font-size:.72rem;letter-spacing:.06em;color:#ddd;opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s;pointer-events:none}
.pi figcaption small{display:block;font-family:var(--h);font-size:.58rem;letter-spacing:.24em;text-transform:uppercase;color:#8a8a8a;margin-top:2px}
.pi:hover figcaption{opacity:1;transform:none}
.pi.hide{display:none}
.more{display:flex;justify-content:center;margin-top:34px}
.btn{display:inline-block;padding:14px 34px;border:1px solid var(--line);font-family:var(--h);font-size:.66rem;font-weight:500;letter-spacing:.28em;text-transform:uppercase;color:#fff;background:none;cursor:pointer;transition:border-color .25s,background .25s,color .25s}
.btn:hover{border-color:#fff}
.btn.solid{background:#fff;color:#000;border-color:#fff}.btn.solid:hover{background:#e6e6e6}
.hint{margin-top:22px;font-size:.78rem;color:var(--faint);text-align:center}

/* lightbox */
.lb{position:fixed;inset:0;z-index:400;background:rgba(0,0,0,.96);display:none;align-items:center;justify-content:center;flex-direction:column;padding:24px}
.lb.on{display:flex}
.lb img{max-width:min(92vw,1100px);max-height:78vh;object-fit:contain;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb p{margin-top:18px;font-size:.8rem;letter-spacing:.06em;color:#bbb;text-align:center}
.lb p small{display:block;font-family:var(--h);font-size:.58rem;letter-spacing:.24em;text-transform:uppercase;color:#777;margin-top:4px}
.lb button{position:absolute;background:none;border:0;color:#fff;cursor:pointer;font-family:var(--h);font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;padding:14px;opacity:.7}
.lb button:hover{opacity:1}
.lb .x{top:14px;right:14px}.lb .pv{left:8px;top:50%;transform:translateY(-50%)}.lb .nx{right:8px;top:50%;transform:translateY(-50%)}

/* büro */
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,90px);align-items:start}
@media(max-width:800px){.two{grid-template-columns:1fr}}
.lead{font-size:clamp(1.05rem,1.5vw,1.3rem);line-height:1.7;color:#d6d6d6;font-weight:300}
.list{list-style:none;margin:28px 0 0;padding:0;columns:2;column-gap:32px;font-size:.92rem;color:#bdbdbd}
.list li{padding:6px 0;border-bottom:1px solid var(--line);break-inside:avoid}
@media(max-width:520px){.list{columns:1}}
.facts{border-top:1px solid var(--line)}
.facts div{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.facts div b{font-family:var(--h);font-weight:500;font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;color:var(--faint);padding-top:4px}
.facts a:hover{text-decoration:underline}
@media(max-width:520px){.facts div{grid-template-columns:1fr;gap:4px}}

/* kontakt */
form{display:grid;gap:26px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(max-width:560px){.f2{grid-template-columns:1fr}}
label{display:block;font-family:var(--h);font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
input,textarea,select{width:100%;background:none;border:0;border-bottom:1px solid var(--line);color:#fff;padding:10px 0;font:300 .98rem var(--b);border-radius:0;transition:border-color .25s}
select{appearance:none;-webkit-appearance:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23888'/%3E%3C/svg%3E") no-repeat right center;cursor:pointer}
select option{background:#111}
input:focus,textarea:focus,select:focus{outline:0;border-bottom-color:#fff}
textarea{resize:vertical;min-height:110px}
.fnote{font-size:.76rem;color:var(--faint)}

/* footer – Aufbau wie bisher */
.ft{border-top:1px solid var(--line);padding:56px 0 30px;font-size:.86rem;color:#bdbdbd}
.ft .cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px}
@media(max-width:700px){.ft .cols{grid-template-columns:1fr}}
.ft h4{margin:0 0 12px;font-family:var(--h);font-weight:500;font-size:.6rem;letter-spacing:.26em;text-transform:uppercase;color:var(--faint)}
.ft a:hover{text-decoration:underline}
.ft .bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:.74rem;color:var(--faint)}
.ft .bot nav{display:flex;gap:22px}

.rv{opacity:0;transform:translateY(18px);transition:opacity .9s,transform .9s cubic-bezier(.22,.61,.36,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}