/* Architektonické styly do detailu — Design system */
:root{
  --white:#ffffff;
  --paper:#faf8f4;
  --beige:#efe7d8;
  --sand:#d9c9ad;
  --warm-gray:#b3a99a;
  --charcoal:#1f1d1a;
  --ink:#2a2723;
  --muted:#6e675d;
  --olive:#7a7a4c;
  --terracotta:#b9613f;
  --line:rgba(31,29,26,.12);
  --shadow-sm:0 2px 10px rgba(31,29,26,.06);
  --shadow-md:0 10px 30px rgba(31,29,26,.10);
  --shadow-lg:0 20px 60px rgba(31,29,26,.16);
  --radius:18px;
  --radius-lg:26px;
  --container:1200px;
  --font-serif:"Cormorant Garamond","Playfair Display",Georgia,"Times New Roman",serif;
  --font-sans:"Inter","Helvetica Neue",Arial,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--terracotta)}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:500;color:var(--charcoal);line-height:1.15;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5.5vw,4.4rem);font-weight:500}
h2{font-size:clamp(1.8rem,3.5vw,2.8rem);margin-bottom:.6em}
h3{font-size:clamp(1.2rem,2vw,1.5rem);margin-bottom:.4em}
p{margin-bottom:1em;color:var(--ink)}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--terracotta);font-weight:600;margin-bottom:14px}
.lead{font-size:1.15rem;color:var(--muted);max-width:680px;line-height:1.7}
.center{text-align:center}
.center .lead{margin:0 auto}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:999px;font-weight:600;font-size:.95rem;
  transition:all .3s cubic-bezier(.4,0,.2,1);cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--charcoal);color:var(--paper)}
.btn-primary:hover{background:var(--terracotta);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--charcoal);border-color:var(--charcoal)}
.btn-outline:hover{background:var(--charcoal);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--charcoal)}
.btn-light:hover{background:var(--terracotta);color:#fff}
.btn .arrow{transition:transform .3s ease}
.btn:hover .arrow{transform:translateX(4px)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(250,248,244,.85);
  backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:1.35rem;font-weight:600;color:var(--charcoal)}
.brand-mark{width:34px;height:34px;border-radius:8px;background:var(--charcoal);color:var(--paper);display:grid;place-items:center;font-family:var(--font-serif);font-size:1.1rem}
.nav-links{display:flex;gap:32px;list-style:none;align-items:center}
.nav-links a{font-size:.94rem;font-weight:500;color:var(--ink);position:relative;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--terracotta);transition:width .3s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{margin-left:8px}
.burger{display:none;background:none;border:0;cursor:pointer;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:22px;height:2px;background:var(--charcoal);transition:transform .3s,opacity .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:900px){
  .nav-links{
    position:fixed;top:73px;right:0;left:0;background:var(--paper);
    flex-direction:column;gap:0;padding:16px 24px 32px;
    border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .35s ease;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%;border-bottom:1px solid var(--line)}
  .nav-links li:last-child{border-bottom:0}
  .nav-links a{display:block;padding:16px 0;font-size:1.05rem}
  .nav-cta{margin:12px 0 0 0}
  .burger{display:flex}
}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,29,26,.55) 0%,rgba(31,29,26,.35) 45%,rgba(31,29,26,.75) 100%)}
.hero-inner{position:relative;z-index:1;color:var(--paper);padding:120px 0}
.hero h1{color:#fff;max-width:14ch}
.hero .eyebrow{color:#e7c9b8}
.hero .lead{color:rgba(255,255,255,.85);max-width:620px;margin-top:20px;font-size:1.2rem}
.hero-actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.18);margin-top:80px;padding-top:32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;color:#fff}
.stat .num{font-family:var(--font-serif);font-size:2.6rem;line-height:1;color:#fff}
.stat .lbl{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.7);margin-top:8px;display:block}
@media (max-width:700px){.hero-stats{grid-template-columns:repeat(2,1fr);gap:24px 16px}}

/* Page hero (interior pages) */
.page-hero{position:relative;padding:140px 0 90px;background:var(--beige);overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-100px;top:-80px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,var(--sand),transparent 70%);opacity:.6}
.page-hero .container{position:relative;z-index:1}
.page-hero .lead{margin-top:18px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:16px}
.crumbs a:hover{color:var(--terracotta)}

/* Cards */
.grid{display:grid;gap:28px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:#fff;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .4s ease,box-shadow .4s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--beige)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.card-tag{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--terracotta);font-weight:600;margin-bottom:10px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.97rem}
.card-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:.85rem;color:var(--muted)}
.card-meta a{color:var(--charcoal);font-weight:600}
.card-meta a:hover{color:var(--terracotta)}

/* Section headings */
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin:0 auto 48px}

/* Feature grid */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
@media (max-width:900px){.features{grid-template-columns:1fr}}
.feature{background:#fff;padding:36px 30px;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.feature .icon{width:52px;height:52px;border-radius:14px;background:var(--beige);color:var(--terracotta);display:grid;place-items:center;margin-bottom:20px}
.feature h3{font-size:1.25rem}

/* Timeline */
.timeline{display:grid;gap:26px}
.timeline-item{
  display:grid;grid-template-columns:180px 1fr;gap:32px;
  padding:32px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
  border-left:4px solid var(--terracotta);
  transition:transform .3s;
}
.timeline-item:hover{transform:translateX(6px)}
.timeline-era{font-family:var(--font-serif);font-size:1.4rem;color:var(--terracotta)}
.timeline-era small{display:block;font-family:var(--font-sans);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:6px}
@media (max-width:700px){.timeline-item{grid-template-columns:1fr;gap:12px;padding:24px}}

/* Style feature card (large) */
.style-block{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:36px;
}
.style-block.alt{grid-template-columns:1fr 1.1fr}
.style-block.alt .style-media{order:2}
.style-media{aspect-ratio:4/3;overflow:hidden}
.style-media img{width:100%;height:100%;object-fit:cover}
.style-body{padding:44px}
.style-body ul{list-style:none;margin-top:14px}
.style-body li{padding:8px 0;padding-left:22px;position:relative;color:var(--muted);font-size:.95rem}
.style-body li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:1px;background:var(--terracotta)}
@media (max-width:820px){.style-block,.style-block.alt{grid-template-columns:1fr}.style-block.alt .style-media{order:0}.style-body{padding:30px}}

/* Testimonials */
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:900px){.testimonials{grid-template-columns:1fr}}
.quote-card{background:var(--beige);padding:36px;border-radius:var(--radius-lg);position:relative}
.quote-card::before{content:"\201C";position:absolute;top:-10px;left:22px;font-family:var(--font-serif);font-size:5rem;color:var(--terracotta);line-height:1}
.quote-card p{font-family:var(--font-serif);font-size:1.2rem;line-height:1.5;color:var(--charcoal)}
.quote-card cite{display:block;margin-top:16px;font-style:normal;font-weight:600;color:var(--charcoal)}
.quote-card cite span{display:block;color:var(--muted);font-size:.85rem;font-weight:400;margin-top:2px}

/* Big quote */
.big-quote{background:var(--charcoal);color:var(--paper);padding:96px 0;text-align:center}
.big-quote p{font-family:var(--font-serif);font-size:clamp(1.6rem,3.6vw,2.6rem);line-height:1.35;max-width:960px;margin:0 auto 20px;color:#fff}
.big-quote cite{font-style:normal;letter-spacing:.2em;text-transform:uppercase;font-size:.78rem;color:rgba(255,255,255,.6)}

/* CTA banner */
.cta-banner{background:linear-gradient(135deg,var(--terracotta),#8a4327);color:#fff;border-radius:var(--radius-lg);padding:64px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow-lg)}
.cta-banner h2{color:#fff;margin-bottom:8px;max-width:640px}
.cta-banner p{color:rgba(255,255,255,.85);margin-bottom:0;max-width:520px}
.cta-banner .btn{background:#fff;color:var(--charcoal)}
.cta-banner .btn:hover{background:var(--charcoal);color:#fff}
@media (max-width:700px){.cta-banner{padding:40px 28px}}

/* Newsletter */
.newsletter{background:var(--beige);border-radius:var(--radius-lg);padding:56px;text-align:center}
.newsletter h2{margin-bottom:8px}
.newsletter form{display:flex;gap:10px;max-width:520px;margin:22px auto 8px}
.newsletter input{flex:1;padding:14px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font-family:inherit;font-size:.95rem}
.newsletter input:focus{outline:2px solid var(--terracotta);outline-offset:2px}
.newsletter small{color:var(--muted);font-size:.8rem}
@media (max-width:600px){.newsletter form{flex-direction:column}}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:14px;box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:22px 26px;font-size:1.05rem;font-weight:600;color:var(--charcoal);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .plus{width:22px;height:22px;position:relative;flex-shrink:0}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--terracotta);left:50%;top:50%;transition:transform .3s}
.faq-q .plus::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-q .plus::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 26px;color:var(--muted)}
.faq-item.open .faq-a{max-height:400px;padding:0 26px 22px}

/* Materials comparison */
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.compare{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.compare{grid-template-columns:1fr}}
.compare .item{background:#fff;padding:26px;border-radius:var(--radius);border:1px solid var(--line);transition:all .3s}
.compare .item:hover{border-color:var(--terracotta);transform:translateY(-4px)}
.compare .item h3{font-size:1.15rem;color:var(--terracotta);font-family:var(--font-sans);font-weight:600;letter-spacing:.02em}
.compare .item p{font-size:.9rem;color:var(--muted);margin:0}

/* Contact form */
.contact-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;gap:40px}}
.contact-form{background:#fff;padding:44px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;font-weight:600;color:var(--charcoal);margin-bottom:6px;letter-spacing:.02em}
.field input,.field textarea{
  width:100%;padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:var(--paper);
  font-family:inherit;font-size:.98rem;color:var(--ink);transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--terracotta);box-shadow:0 0 0 3px rgba(185,97,63,.15);background:#fff}
.field textarea{resize:vertical;min-height:130px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted);margin:10px 0 20px}
.consent input{width:18px;height:18px;margin-top:3px;accent-color:var(--terracotta);flex-shrink:0}
.contact-aside .trust{display:grid;gap:14px;margin-top:26px}
.trust-item{display:flex;gap:14px;align-items:flex-start;background:#fff;padding:20px;border-radius:var(--radius);border:1px solid var(--line)}
.trust-item .ic{width:42px;height:42px;border-radius:12px;background:var(--beige);color:var(--terracotta);display:grid;place-items:center;flex-shrink:0}
.trust-item h4{font-family:var(--font-sans);font-size:.98rem;font-weight:600;margin-bottom:2px;color:var(--charcoal)}
.trust-item p{font-size:.88rem;color:var(--muted);margin:0}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;grid-auto-rows:180px}
.gallery a{border-radius:14px;overflow:hidden;display:block;position:relative}
.gallery a:nth-child(1){grid-column:span 2;grid-row:span 2}
.gallery a:nth-child(6){grid-column:span 2}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.gallery a:hover img{transform:scale(1.06)}
@media (max-width:800px){.gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}.gallery a:nth-child(1),.gallery a:nth-child(6){grid-column:span 2}}

/* Footer */
.site-footer{background:var(--charcoal);color:rgba(255,255,255,.7);padding:72px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr}.footer-grid > div:first-child{grid-column:span 2}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}.footer-grid > div:first-child{grid-column:span 1}}
.site-footer h4{color:#fff;font-family:var(--font-sans);font-size:.85rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:18px;font-weight:600}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer a{color:rgba(255,255,255,.65);font-size:.93rem}
.site-footer a:hover{color:var(--terracotta)}
.site-footer .brand{color:#fff}
.site-footer .brand-mark{background:var(--terracotta)}
.footer-tag{margin-top:14px;font-size:.93rem;color:rgba(255,255,255,.6);max-width:320px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem;color:rgba(255,255,255,.5)}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

/* Utilities */
.mt-md{margin-top:32px}
.mt-lg{margin-top:56px}
.divider{height:1px;background:var(--line);margin:80px 0}
.pill{display:inline-block;padding:5px 12px;border-radius:999px;background:var(--beige);color:var(--charcoal);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600}