/* ============================================================
   Atelier Bremstahler — ruhige Galerie-Optik
   Warmes Papier, edle Serifen-Headlines, viel Weißraum.
   Eigenständig – keine Abhängigkeit zu 39vibration.
   ============================================================ */
:root{
  --bg:      #f7f4ee;   /* warmes Papier / Galeriewand */
  --bg-2:    #ffffff;
  --bg-3:    #efeae1;
  --ink:     #1d1b17;   /* warmes Fast-Schwarz */
  --ink-2:   #57514a;   /* gedämpfter Fließtext */
  --ink-3:   #8c857b;   /* Hinweise */
  --line:    #e4ddd1;   /* Haarlinien */
  --accent:  #9c6b3f;   /* warmes Ocker/Terrakotta */
  --accent-d:#7d5430;
  --r:       3px;
  --serif:   Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --sans:    -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --wrap:    1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--ink);
  font-family:var(--sans); font-size:16px; line-height:1.7;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--wrap);margin:0 auto;padding:0 28px}

h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:.01em;line-height:1.15;color:var(--ink)}
h1{font-size:clamp(34px,6vw,64px)}
h2{font-size:clamp(26px,4vw,40px)}
h3{font-size:clamp(19px,2.4vw,24px)}
.eyebrow{font-family:var(--sans);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:600}
.lead{font-size:clamp(17px,2vw,20px);color:var(--ink-2);line-height:1.75;max-width:60ch}
p{color:var(--ink-2)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-size:14px;letter-spacing:.04em;
     padding:13px 26px;border:1px solid var(--ink);border-radius:var(--r);transition:all .25s;cursor:pointer;background:none;font-family:var(--sans)}
.btn-solid{background:var(--ink);color:var(--bg)}
.btn-solid:hover{background:var(--accent-d);border-color:var(--accent-d)}
.btn-ghost:hover{background:var(--ink);color:var(--bg)}

/* ---------- Nav ---------- */
.site-nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg) 88%,transparent);
          backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.nav-logo{font-family:var(--serif);font-size:20px;letter-spacing:.14em;text-transform:uppercase}
.nav-logo b{font-weight:400}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:34px;list-style:none}
.nav-links a{font-size:14px;letter-spacing:.06em;color:var(--ink-2);position:relative;padding:4px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .25s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-burger span{width:24px;height:2px;background:var(--ink);transition:.3s}
.nav-mobile{display:none;flex-direction:column;gap:2px;padding:14px 28px 22px;border-bottom:1px solid var(--line);background:var(--bg)}
.nav-mobile a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.nav-mobile.open{display:flex}

/* ---------- Hero ---------- */
.hero{padding:clamp(64px,12vw,140px) 0 clamp(48px,8vw,96px)}
.hero .eyebrow{display:block;margin-bottom:22px}
.hero h1{max-width:16ch;margin-bottom:26px}
.hero .lead{margin-bottom:38px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-rule{height:1px;background:var(--line);margin-top:clamp(48px,8vw,90px)}

/* ---------- Sections ---------- */
.section{padding:clamp(56px,9vw,104px) 0}
.section-head{max-width:64ch;margin-bottom:clamp(32px,5vw,56px)}
.section-head .eyebrow{display:block;margin-bottom:16px}
.section-head p{margin-top:16px}

/* ---------- Startseite: Disziplinen ---------- */
.disciplines{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.disc{background:var(--bg);padding:38px 32px;transition:background .3s}
.disc:hover{background:var(--bg-2)}
.disc .n{font-family:var(--serif);font-size:15px;color:var(--accent);margin-bottom:14px}
.disc h3{margin-bottom:10px}
.disc p{font-size:15px}

/* ---------- Galerie (Masonry-Spalten) ---------- */
.gallery-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,44px)}
.filter-btn{font-family:var(--sans);font-size:13px;letter-spacing:.05em;padding:9px 20px;border:1px solid var(--line);
            background:none;color:var(--ink-2);border-radius:100px;cursor:pointer;transition:all .22s}
.filter-btn:hover{border-color:var(--ink-3);color:var(--ink)}
.filter-btn.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.masonry{column-count:3;column-gap:22px}
.masonry-item{break-inside:avoid;margin-bottom:22px;position:relative;cursor:zoom-in;background:var(--bg-3)}
.masonry-item img{width:100%;transition:opacity .5s ease, transform .5s ease;opacity:0}
.masonry-item.in img{opacity:1}
.masonry-item:hover img{transform:scale(1.015)}
.mi-meta{position:absolute;left:0;right:0;bottom:0;padding:16px 16px 14px;
         background:linear-gradient(transparent,rgba(20,18,15,.72));color:#fff;opacity:0;transition:opacity .3s}
.masonry-item:hover .mi-meta{opacity:1}
.mi-meta .t{font-family:var(--serif);font-size:16px}
.mi-meta .p{font-size:12px;letter-spacing:.05em;color:#e8dcc9;margin-top:2px}
.gallery-empty{text-align:center;padding:80px 20px;color:var(--ink-3)}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(28,24,20,.94);display:none;align-items:center;justify-content:center;padding:36px}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:82vh;object-fit:contain;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:22px;right:28px;font-size:30px;color:#fff;cursor:pointer;line-height:1;opacity:.8}
.lb-close:hover{opacity:1}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);font-size:44px;color:#fff;cursor:pointer;opacity:.6;user-select:none;padding:10px 18px}
.lb-nav:hover{opacity:1}
.lb-prev{left:12px}.lb-next{right:12px}
.lb-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#eee;font-family:var(--serif)}
.lb-cap .p{display:block;font-family:var(--sans);font-size:13px;letter-spacing:.05em;color:var(--accent);margin-top:4px}

/* ---------- CTA-Band ---------- */
.cta{background:var(--ink);color:var(--bg);text-align:center;padding:clamp(56px,9vw,96px) 0}
.cta h2{color:var(--bg)}
.cta p{color:#cfc7bb;margin:16px auto 30px;max-width:52ch}
.cta .btn{border-color:var(--bg);color:var(--bg)}
.cta .btn:hover{background:var(--bg);color:var(--ink)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:56px 0 40px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-brand .nav-logo{font-size:18px}
.footer-brand p{font-size:14px;margin-top:14px;max-width:38ch}
.footer-col h4{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:var(--ink-2);padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}

/* ---------- Über / Text-Seiten ---------- */
.page-hero{padding:clamp(56px,9vw,110px) 0 clamp(20px,4vw,40px)}
.breadcrumb{font-size:13px;letter-spacing:.05em;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--ink-2)}
.prose{max-width:68ch}
.prose p{margin-bottom:18px}
.prose h2{margin:40px 0 16px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,64px);align-items:start}
.about-portrait{background:var(--bg-3);aspect-ratio:4/5;overflow:hidden}
.about-portrait img{width:100%;height:100%;object-fit:cover}

/* ---------- Kontakt ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px)}
.contact-info dt{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-top:22px;font-weight:600}
.contact-info dd{font-size:16px;color:var(--ink)}
.contact-info a{color:var(--accent)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;letter-spacing:.04em;color:var(--ink-2);margin-bottom:6px}
.field input,.field textarea{width:100%;font-family:var(--sans);font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2);color:var(--ink)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .disciplines{grid-template-columns:1fr}
  .masonry{column-count:2}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .masonry{column-count:1}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.reveal,.masonry-item img{opacity:1;transform:none}}