/* ===========================================================
   DELMAR S.r.l. — Direzione "Luce"
   =========================================================== */

:root{
  --bg:#f3f2ee;
  --panel:#fbfaf7;
  --soft:#e8e4db;
  --line:#dcd8cf;
  --ink:#1e211f;
  --ink-2:#3b403c;
  --mut:#6b6f6b;
  --ochre:#a8792a;
  --ochre-dk:#8a6220;
  --radius:14px;
  --maxw:1120px;
  --pad:clamp(1.25rem,4vw,3rem);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:Archivo,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{margin:0;letter-spacing:-.018em}

:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;border-radius:3px}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.label{
  font:500 .74rem/1 "IBM Plex Mono",ui-monospace,monospace;
  letter-spacing:.17em;text-transform:uppercase;color:var(--ochre);
}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:100;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:6px}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:40;
  background:rgba(243,242,238,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease;
}
.site-head.scrolled{border-bottom-color:var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:1.15rem}
.mark{
  font-family:Fraunces,Georgia,serif;font-weight:600;font-size:1.45rem;
  letter-spacing:.01em;text-decoration:none;line-height:1;
}
.mark span{color:var(--ochre)}
.site-nav{display:flex;align-items:center;gap:1.7rem}
.site-nav a{font-size:.94rem;text-decoration:none;color:var(--ink-2)}
.site-nav a:hover{color:var(--ochre)}
.site-nav a.btn-solid{color:var(--bg)}
.site-nav a.btn-solid:hover{color:#fff}
.btn{
  display:inline-block;text-decoration:none;border-radius:999px;
  padding:.72rem 1.4rem;font-size:.95rem;font-weight:500;line-height:1.2;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-solid{background:var(--ink);color:var(--bg);border:1px solid var(--ink)}
.btn-solid:hover{background:var(--ochre);border-color:var(--ochre);color:#fff}
.btn-ghost{border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:.5rem .8rem;
  font:500 .8rem/1 "IBM Plex Mono",monospace;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;color:var(--ink)}

/* ---------- hero ---------- */
.hero{padding-block:clamp(2.5rem,7vw,5.5rem) clamp(2.5rem,6vw,4.5rem)}
.hero .wrap{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);align-items:center}
.hero h1{
  font-family:Fraunces,Georgia,serif;font-weight:300;
  font-size:clamp(2.35rem,6vw,4.4rem);line-height:1.04;margin-top:1.5rem;
}
.hero h1 em{font-weight:600;font-style:italic;color:var(--ochre)}
.hero .lead{margin:1.6rem 0 0;max-width:46ch;color:var(--mut);font-size:1.08rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}

/* superficie in pietra — elemento firma */
.stone{
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 30px 70px -34px rgba(30,33,31,.5);
  background:var(--panel);
}
.stone svg{width:100%;height:100%}
.stone-tall{aspect-ratio:4/5}
.stone-wide{aspect-ratio:16/9}

/* ---------- strip ---------- */
.strip{border-block:1px solid var(--line);background:var(--panel)}
.strip .wrap{display:grid;gap:1.4rem clamp(1.5rem,4vw,3rem);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding-block:1.7rem}
.strip p{margin:.45rem 0 0;color:var(--mut);font-size:.97rem}

/* ---------- sezioni ---------- */
section{scroll-margin-top:5rem}
.sec{padding-block:clamp(3rem,8vw,6rem)}
.sec-head{max-width:52ch;margin-bottom:clamp(2rem,4vw,3rem)}
.sec-head h2{
  font-family:Fraunces,Georgia,serif;font-weight:300;
  font-size:clamp(1.9rem,4.2vw,3rem);line-height:1.1;margin-top:.9rem;
}
.sec-head h2 em{font-weight:600;font-style:italic;color:var(--ochre)}
.sec-head p{margin:1rem 0 0;color:var(--mut)}

.cards{display:grid;gap:clamp(1.1rem,2.5vw,1.8rem);grid-template-columns:repeat(auto-fit,minmax(258px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.card .swatch{height:150px}
.card .swatch svg{height:100%;width:100%}
.card .body{padding:1.5rem 1.5rem 1.7rem}
.card h3{font-family:Fraunces,Georgia,serif;font-weight:600;font-size:1.28rem;margin-bottom:.55rem}
.card p{margin:0;color:var(--mut);font-size:.97rem}

/* processo (vera sequenza) */
.steps{display:grid;gap:clamp(1.2rem,3vw,2rem);grid-template-columns:repeat(auto-fit,minmax(230px,1fr));counter-reset:s}
.step{padding-top:1.4rem;border-top:2px solid var(--ink)}
.step:nth-child(n+2){border-top-color:var(--line)}
.step .n{font:500 .78rem/1 "IBM Plex Mono",monospace;letter-spacing:.14em;color:var(--ochre)}
.step h3{font-family:Fraunces,Georgia,serif;font-weight:600;font-size:1.2rem;margin:.75rem 0 .5rem}
.step p{margin:0;color:var(--mut);font-size:.96rem}

/* distretto */
.split{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:center}
.split h2{font-family:Fraunces,Georgia,serif;font-weight:300;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.1;margin-top:.9rem}
.split h2 em{font-weight:600;font-style:italic;color:var(--ochre)}
.split p{color:var(--mut);margin:1.1rem 0 0}

/* mercati */
.h-serif{font-family:Fraunces,Georgia,serif;font-weight:300;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.1;margin-top:.9rem}
.h-serif em{font-weight:600;font-style:italic;color:var(--ochre)}
.markets-sec .intro{color:var(--mut);margin:0}
.markets{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.6rem 0 0;padding:0;list-style:none}
.markets li{list-style:none;background:var(--soft);border-radius:999px;padding:.55rem 1.15rem;font-size:.95rem;color:var(--ink-2)}
.markets-sec .wrap{display:grid;gap:clamp(1.5rem,4vw,3rem);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:start}

/* contatti */
.contact{background:var(--panel);border-top:1px solid var(--line)}
.contact .wrap{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  padding-block:clamp(3rem,7vw,5rem)}
.contact h2{font-family:Fraunces,Georgia,serif;font-weight:300;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.1;margin-top:.9rem}
.contact h2 em{font-weight:600;font-style:italic;color:var(--ochre)}
.contact .intro{color:var(--mut);margin:1.1rem 0 0;max-width:40ch}
.info{display:grid;gap:1.6rem;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.info b{display:block;font:500 .74rem/1 "IBM Plex Mono",monospace;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ochre);margin-bottom:.6rem;font-weight:500}
.info p{margin:0;line-height:1.72}
.info a{text-decoration:none;border-bottom:1px solid var(--line)}
.info a:hover{border-bottom-color:var(--ochre);color:var(--ochre-dk)}
.contact .actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}

/* footer */
.site-foot{border-top:1px solid var(--line);background:var(--bg)}
.site-foot .wrap{display:flex;flex-wrap:wrap;gap:.7rem 2rem;justify-content:space-between;
  padding-block:2rem;color:var(--mut);font-size:.9rem}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* responsive */
@media (max-width:900px){
  .hero .wrap,.split,.contact .wrap{grid-template-columns:1fr}
  .stone-tall{aspect-ratio:16/10}
  .split .stone{order:-1}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-bottom:1px solid var(--line);
    padding:.5rem var(--pad) 1.2rem;display:none;
  }
  .site-nav.open{display:flex}
  .site-nav a{padding:.85rem 0;border-bottom:1px solid var(--line);font-size:1.02rem}
  .site-nav .btn{margin-top:1rem;text-align:center;border-bottom:0}
  .site-head .wrap{position:relative}
}