/* ==========================================================
   NIKESTONE — STYLE.CSS
   Luxury aesthetic · Mobile-first · Pietra di Luserna
   ========================================================== */

/* ---------- 1. RESET ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img,svg,video{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ---------- 2. TOKENS ---------- */
:root{
  /* palette */
  --ink:#0c2135;
  --ink-2:#1A3A4A;
  --teal:#1A6B7C;
  --bone:#f5f1ea;
  --bone-2:#ede7dc;
  --paper:#fbfaf7;
  --stone:#8a8780;
  --stone-2:#6a6862;
  --line:#dcd6cb;
  --line-2:#c6bfb1;
  --accent:#c4a572;   /* warm bronze */
  --accent-2:#9d8350;
  --ok:#3a7d4a;
  --err:#a02828;

  /* type */
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif;

  /* spacing scale */
  --s-1:.5rem;
  --s-2:1rem;
  --s-3:1.5rem;
  --s-4:2rem;
  --s-5:3rem;
  --s-6:4.5rem;
  --s-7:6rem;
  --s-8:8rem;

  /* container */
  --cw:1280px;
  --gut:1.5rem;

  /* motion */
  --t-fast:.18s ease;
  --t-base:.32s cubic-bezier(.4,0,.2,1);
  --t-slow:.6s cubic-bezier(.22,.61,.36,1);
  --t-curtain:.9s cubic-bezier(.16,1,.3,1);

  /* shadow */
  --sh-soft:0 1px 2px rgba(12,33,53,.06),0 8px 24px rgba(12,33,53,.06);
  --sh-lift:0 4px 12px rgba(12,33,53,.1),0 24px 60px rgba(12,33,53,.12);
}

/* ---------- 3. BASE ---------- */
html,body{background:var(--paper);color:var(--ink)}
body{
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  font-weight:400;
  overflow-x:hidden;
}
@media(max-width:640px){body{font-size:16px}}

h1,h2,h3,h4{font-family:var(--serif);font-weight:400;letter-spacing:-.01em;line-height:1.1;color:var(--ink)}
h1{font-size:clamp(2.4rem,7vw,5.2rem);line-height:1.02;letter-spacing:-.025em}
h1 em{font-style:italic;font-weight:300;color:var(--accent)}
h2{font-size:clamp(2rem,4.5vw,3.6rem);margin-bottom:var(--s-4)}
h2 em{font-style:italic;font-weight:300;color:var(--teal)}
h3{font-size:1.35rem;font-weight:500;margin-bottom:var(--s-2)}
p{color:var(--stone-2);max-width:62ch}
.eyebrow{
  font-family:var(--sans);
  font-size:.78rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--teal);
  margin-bottom:var(--s-2);
}

.container{max-width:var(--cw);margin:0 auto;padding:0 var(--gut)}

/* a11y */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 4. REVEAL ANIMATION ---------- */
.rev{opacity:0;transform:translateY(28px);transition:opacity var(--t-curtain),transform var(--t-curtain)}
.rev.is-vis{opacity:1;transform:none}

/* ---------- 5. BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:1rem 1.8rem;
  font-family:var(--sans);
  font-size:.92rem;
  font-weight:600;
  letter-spacing:.04em;
  text-transform:uppercase;
  border-radius:0;
  transition:background var(--t-base),color var(--t-base),border-color var(--t-base),transform var(--t-fast),box-shadow var(--t-base);
  position:relative;
  border:1px solid transparent;
  white-space:nowrap;
  min-height:48px;       /* mobile-friendly thumb target */
  cursor:pointer;
}
.btn-small{padding:.65rem 1.2rem;font-size:.78rem;min-height:40px}
.btn-solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-solid:hover{background:var(--teal);border-color:var(--teal);transform:translateY(-2px);box-shadow:var(--sh-lift)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-on-dark{background:transparent;color:var(--paper);border-color:rgba(255,255,255,.35)}
.btn-on-dark:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn .arrow{transition:transform var(--t-base)}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- 6. NAVIGATION ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:50;
  background:rgba(251,250,247,.6);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:background var(--t-base),border-color var(--t-base),box-shadow var(--t-base),padding var(--t-base);
}
.nav[data-state="scrolled"]{
  background:rgba(251,250,247,.94);
  border-bottom-color:var(--line);
  box-shadow:0 2px 16px rgba(12,33,53,.06);
}
.nav-inner{
  max-width:var(--cw);margin:0 auto;padding:.85rem var(--gut);
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);
}
.brand img{height:46px;width:auto;display:block;transition:height var(--t-base)}
.nav[data-state="scrolled"] .brand img{height:40px}
.primary{display:flex;gap:1.8rem}
.primary a{
  font-size:.86rem;font-weight:500;letter-spacing:.04em;color:var(--ink);
  position:relative;padding:.4rem 0;transition:color var(--t-base);
}
.primary a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t-base);
}
.primary a:hover{color:var(--teal)}
.primary a:hover::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:1rem}
.lang{display:flex;align-items:center;gap:.4rem;font-size:.76rem;font-weight:600;letter-spacing:.08em}
.lang button{padding:.3rem .15rem;color:var(--stone);transition:color var(--t-base)}
.lang button.active{color:var(--ink)}
.lang button:hover{color:var(--accent-2)}
.lang span{color:var(--line-2)}
.ham{display:none;width:42px;height:42px;flex-direction:column;justify-content:center;gap:5px;padding:0 8px}
.ham span{width:100%;height:1.5px;background:var(--ink);transition:transform var(--t-base),opacity var(--t-base)}
.ham.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.ham.is-open span:nth-child(2){opacity:0}
.ham.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 7. MOBILE MENU ---------- */
.mob-menu{
  position:fixed;inset:0;z-index:49;
  background:var(--paper);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:1.4rem;
  padding:6rem var(--gut) var(--gut);
  opacity:0;visibility:hidden;
  transform:translateY(-20px);
  transition:opacity var(--t-base),visibility var(--t-base),transform var(--t-base);
}
.mob-menu.is-open{opacity:1;visibility:visible;transform:none}
.mob-lnk{font-family:var(--serif);font-size:1.9rem;color:var(--ink);letter-spacing:-.01em}
.mob-lang{display:flex;gap:1rem;margin-top:var(--s-3);padding-top:var(--s-3);border-top:1px solid var(--line)}
.mob-lang button{font-size:.85rem;letter-spacing:.08em;color:var(--stone);text-transform:uppercase;padding:.5rem .8rem}
.mob-lang button.active{color:var(--ink);font-weight:600}
.mob-ig{margin-top:var(--s-2);font-size:.9rem;color:var(--teal);font-weight:600;letter-spacing:.04em}

/* ---------- 8. HERO ---------- */
.hero{
  position:relative;min-height:100vh;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:8rem var(--gut) 6rem;
  overflow:hidden;color:var(--paper);
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(135deg,rgba(12,33,53,.45) 0%,rgba(12,33,53,.25) 50%,rgba(26,107,124,.35) 100%),
    url("images/hero-castello-cachard.jpg") center/cover no-repeat;
  background-color:#0c2135;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .6  0 0 0 0 .6  0 0 0 0 .6  0 0 0 .12 0'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  opacity:.4;mix-blend-mode:overlay;
}
.hero-veil{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(12,33,53,.15) 0%,rgba(12,33,53,.55) 60%,rgba(12,33,53,.85) 100%)}
.hero-inner{max-width:var(--cw);margin:0 auto;width:100%}
.hero-eyebrow{
  font-family:var(--sans);font-size:.78rem;letter-spacing:.3em;text-transform:uppercase;
  font-weight:500;color:var(--accent);margin-bottom:var(--s-3);
}
.hero h1{color:var(--paper);max-width:18ch;margin-bottom:var(--s-3)}
.hero h1 em{display:block;color:var(--accent);font-style:italic;font-weight:300}
.hero-sub{color:rgba(255,255,255,.78);font-size:clamp(1rem,1.5vw,1.2rem);max-width:48ch;margin-bottom:var(--s-4)}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem}
.hero-meta{
  position:absolute;right:var(--gut);bottom:1.5rem;
  font-family:var(--sans);font-size:.74rem;color:rgba(255,255,255,.65);
  letter-spacing:.15em;text-align:right;line-height:1.6;
}
.hero-meta strong{display:block;color:var(--accent);font-weight:500;letter-spacing:.22em;text-transform:uppercase;font-size:.7rem;margin-bottom:.15rem}
.scroll-cue{
  position:absolute;left:50%;bottom:1.8rem;transform:translateX(-50%);
  width:24px;height:38px;border:1.5px solid rgba(255,255,255,.4);border-radius:14px;
}
.scroll-cue span{
  position:absolute;left:50%;top:8px;width:2px;height:6px;background:var(--paper);
  border-radius:2px;transform:translateX(-50%);
  animation:cue 1.8s ease-in-out infinite;
}
@keyframes cue{0%,100%{opacity:0;top:8px}50%{opacity:1;top:18px}}

/* ---------- 9. STATS ---------- */
.stats{padding:var(--s-6) 0;background:var(--bone)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s-4)}
.stat{text-align:left;padding-left:var(--s-3);border-left:1px solid var(--line-2)}
.stat strong{
  display:block;font-family:var(--serif);font-size:clamp(2.4rem,4vw,3.4rem);
  font-weight:400;line-height:1;color:var(--ink);margin-bottom:.4rem;letter-spacing:-.02em;
}
.stat span{font-size:.82rem;color:var(--stone-2);letter-spacing:.04em;display:block}

/* ---------- 10. ABOUT ---------- */
.about{padding:var(--s-8) 0;background:var(--paper)}
.two-col{display:grid;grid-template-columns:1.1fr 1fr;gap:var(--s-7);align-items:center}
.col-txt p{margin-bottom:var(--s-2)}
.about-sign{font-family:var(--serif);font-style:italic;font-size:1.15rem;color:var(--ink);margin-top:var(--s-3)}
.col-img figure{position:relative;overflow:hidden}
.col-img img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
  transition:transform 1.2s cubic-bezier(.16,1,.3,1);
}
.col-img figure:hover img{transform:scale(1.04)}
.col-img figcaption{
  position:absolute;bottom:1rem;left:1rem;
  background:rgba(12,33,53,.85);color:var(--paper);
  padding:.5rem .9rem;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;
}

/* ---------- 11. LUSERNA ---------- */
.luserna{padding:var(--s-8) 0;background:var(--bone)}
.luserna-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s-3);margin-top:var(--s-5)}
.lcard{
  background:var(--paper);padding:var(--s-4) var(--s-3);
  border:1px solid var(--line);
  transition:transform var(--t-base),box-shadow var(--t-base),border-color var(--t-base);
}
.lcard:hover{transform:translateY(-4px);box-shadow:var(--sh-lift);border-color:var(--accent)}
.lcard h3{color:var(--teal);font-family:var(--serif);font-size:1.4rem;margin-bottom:var(--s-2);font-style:italic}
.lcard p{font-size:.94rem;color:var(--stone-2)}

/* ---------- 12. PORTFOLIO ---------- */
.portfolio{padding:var(--s-8) 0;background:var(--paper)}
.gallery{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-3);margin-top:var(--s-5);
}
.gitem{
  position:relative;overflow:hidden;background:var(--bone);
  aspect-ratio:4/5;
}
.gitem img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s cubic-bezier(.16,1,.3,1)}
.gitem:hover img{transform:scale(1.06)}
.gitem figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:1.2rem 1rem .9rem;
  background:linear-gradient(0deg,rgba(12,33,53,.92) 0%,rgba(12,33,53,0) 100%);
  color:var(--paper);font-size:.84rem;letter-spacing:.08em;text-transform:uppercase;
  transform:translateY(8px);opacity:.95;transition:transform var(--t-base),opacity var(--t-base);
}
.gitem:hover figcaption{transform:none;opacity:1}
.cat-title{
  font-family:var(--serif);font-weight:300;font-style:italic;
  font-size:clamp(1.5rem,2.4vw,2rem);color:var(--ink);
  margin:var(--s-6) 0 var(--s-2);padding-bottom:.6rem;
  border-bottom:1px solid var(--line);
  display:flex;align-items:baseline;gap:1rem;
}
.cat-title:first-of-type{margin-top:var(--s-5)}
.cat-title span{
  font-family:var(--sans);font-style:normal;font-weight:500;
  font-size:.72rem;letter-spacing:.3em;color:var(--accent);
  border:1px solid var(--accent);padding:.25rem .55rem;border-radius:2px;
}
.portfolio .gallery{margin-top:var(--s-3);margin-bottom:var(--s-4)}

/* ---------- 13. PROCESS ---------- */
.process{padding:var(--s-8) 0;background:var(--ink);color:var(--paper)}
.process h2,.process .eyebrow{color:var(--paper)}
.process .eyebrow{color:var(--accent)}
.process h2 em{color:var(--accent)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s-3);margin-top:var(--s-5);counter-reset:s}
.steps li{padding:var(--s-3);border-top:1px solid rgba(255,255,255,.18);position:relative}
.steps .n{
  display:block;font-family:var(--serif);font-size:2.4rem;color:var(--accent);
  font-weight:300;margin-bottom:var(--s-2);font-style:italic;
}
.steps h3{color:var(--paper);font-family:var(--serif);font-size:1.3rem;margin-bottom:.5rem}
.steps p{color:rgba(255,255,255,.7);font-size:.92rem}

/* ---------- 14. SERVICES ---------- */
.services{padding:var(--s-8) 0;background:var(--bone-2)}
.svc-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-3);
  margin-top:var(--s-5);
}
.svc{
  background:var(--paper);padding:var(--s-4) var(--s-3);
  border:1px solid var(--line);position:relative;
  transition:transform var(--t-base),box-shadow var(--t-base),border-color var(--t-base);
}
.svc:hover{transform:translateY(-4px);box-shadow:var(--sh-lift);border-color:var(--accent)}
.svc-n{
  position:absolute;top:1.4rem;right:1.4rem;
  font-family:var(--serif);font-size:.95rem;font-style:italic;color:var(--accent);letter-spacing:.06em;
}
.svc h3{color:var(--ink);font-family:var(--serif);font-size:1.3rem;margin-bottom:var(--s-2);padding-right:2.5rem}
.svc p{font-size:.94rem;color:var(--stone-2);margin-bottom:var(--s-2)}
.svc-tags{display:flex;flex-wrap:wrap;gap:.4rem}
.svc-tags li{
  font-size:.72rem;color:var(--teal);background:var(--bone);
  padding:.3rem .7rem;border:1px solid var(--line);
  letter-spacing:.05em;
}

/* ---------- 15. CATALOGHI ---------- */
.cataloghi{padding:var(--s-8) 0;background:var(--paper)}
.cataloghi .lead{margin-bottom:var(--s-5);max-width:60ch;font-size:1.05rem}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-3)}
.cat-card{
  display:flex;flex-direction:column;justify-content:space-between;
  padding:var(--s-4) var(--s-3);min-height:280px;
  background:var(--ink);color:var(--paper);
  position:relative;overflow:hidden;
  transition:transform var(--t-base),box-shadow var(--t-base);
}
.cat-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(196,165,114,.18),transparent 50%);
  opacity:0;transition:opacity var(--t-base);
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lift)}
.cat-card:hover::before{opacity:1}
.cat-tag{
  font-size:.72rem;color:var(--accent);letter-spacing:.18em;text-transform:uppercase;
  margin-bottom:var(--s-3);font-weight:600;
}
.cat-card h3{
  font-family:var(--serif);font-size:2rem;color:var(--paper);
  letter-spacing:.18em;margin-bottom:var(--s-2);position:relative;
}
.cat-card p{color:rgba(255,255,255,.72);font-size:.94rem;margin-bottom:var(--s-3);position:relative}
.cat-cta{
  font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  color:var(--accent);position:relative;transition:transform var(--t-base);
}
.cat-card:hover .cat-cta{transform:translateX(6px)}

/* ---------- 16. CONTATTI ---------- */
.contact{padding:var(--s-8) 0;background:var(--bone)}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:var(--s-5);align-items:start}
.contact-info{position:sticky;top:7rem}
.contact-info h2{margin-bottom:var(--s-3)}
.contact-info h2 em{color:var(--teal)}
.contact-lead{font-size:.98rem;margin-bottom:var(--s-4)}

.ci-list{display:flex;flex-direction:column;gap:var(--s-2);margin-bottom:var(--s-4)}
.ci-list li{display:grid;grid-template-columns:90px 1fr;gap:var(--s-2);padding-bottom:var(--s-2);border-bottom:1px solid var(--line)}
.ci-list li:last-child{border-bottom:0}
.ci-l{font-size:.72rem;color:var(--stone);letter-spacing:.16em;text-transform:uppercase;padding-top:.35rem}
.ci-v{font-size:.95rem;color:var(--ink);line-height:1.6}
.ci-v a{color:var(--teal);border-bottom:1px solid transparent;transition:border-color var(--t-base)}
.ci-v a:hover{border-bottom-color:var(--teal)}
.ci-flag{
  font-size:.62rem;letter-spacing:.12em;color:var(--stone);
  margin-left:.5rem;padding:.1rem .35rem;border:1px solid var(--line-2);border-radius:2px;
  vertical-align:middle;
}

.contact-map{
  height:280px;background:var(--bone-2);border:1px solid var(--line);
  margin-top:var(--s-3);position:relative;overflow:hidden;
}

/* ---------- 17. FORM ---------- */
.contact-form{
  background:var(--paper);padding:var(--s-5) var(--s-4);
  border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.form-progress{
  display:flex;align-items:center;gap:.6rem;margin-bottom:var(--s-5);
  padding-bottom:var(--s-3);border-bottom:1px solid var(--line);
}
.fp-step{display:flex;align-items:center;gap:.5rem;color:var(--stone)}
.fp-step span{
  width:30px;height:30px;border-radius:50%;
  background:var(--bone-2);color:var(--stone);
  display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:600;
  transition:background var(--t-base),color var(--t-base);
}
.fp-step em{font-style:normal;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.fp-step.active span{background:var(--ink);color:var(--paper)}
.fp-step.active{color:var(--ink)}
.fp-step.done span{background:var(--teal);color:var(--paper)}
.fp-bar{flex:1;height:1px;background:var(--line);position:relative;overflow:hidden}
.fp-fill{position:absolute;left:0;top:0;height:100%;background:var(--teal);transition:width var(--t-slow)}

.fstep{display:none;border:0;padding:0}
.fstep.is-active{display:block;animation:fIn .4s ease forwards}
@keyframes fIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.fstep-h{font-family:var(--serif);font-size:1.6rem;color:var(--ink);margin-bottom:.4rem}
.fstep-p{color:var(--stone-2);margin-bottom:var(--s-4);font-size:.95rem}

.row{display:grid;grid-template-columns:1fr 1fr;gap:var(--s-2);margin-bottom:var(--s-2)}
.field{display:block;margin-bottom:var(--s-2)}
.field>span{
  display:block;font-size:.78rem;color:var(--stone-2);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:.4rem;font-weight:600;
}
.field>span em{color:var(--stone);font-style:normal;text-transform:none;font-weight:400;letter-spacing:0}
.field input,.field textarea{
  width:100%;background:var(--paper);
  border:1px solid var(--line-2);
  padding:.85rem 1rem;font-size:.96rem;color:var(--ink);
  transition:border-color var(--t-base),box-shadow var(--t-base);
  min-height:48px;border-radius:0;
}
.field textarea{min-height:120px;resize:vertical;font-family:inherit}
.field input:focus,.field textarea:focus{
  outline:0;border-color:var(--teal);box-shadow:0 0 0 3px rgba(26,107,124,.12);
}
.field.file input[type=file]{display:none}
.file-display{
  display:block;padding:.85rem 1rem;background:var(--bone);
  border:1px dashed var(--line-2);font-size:.88rem;color:var(--stone-2);
  cursor:pointer;transition:border-color var(--t-base),background var(--t-base);
}
.file-display:hover{border-color:var(--teal);background:var(--paper)}

.choice{border:0;margin-bottom:var(--s-3);padding:0}
.choice legend{
  font-size:.78rem;color:var(--stone-2);letter-spacing:.08em;text-transform:uppercase;
  font-weight:600;margin-bottom:var(--s-2);
}
.choice legend em{color:var(--stone);font-style:normal;text-transform:none;font-weight:400;letter-spacing:0;margin-left:.4rem}

/* radio/check options */
.opt,.mopt{
  display:flex;align-items:center;gap:.7rem;
  padding:.85rem 1rem;border:1px solid var(--line-2);background:var(--paper);
  margin-bottom:.4rem;cursor:pointer;
  transition:border-color var(--t-base),background var(--t-base);
  min-height:48px;
}
.opt:hover,.mopt:hover{border-color:var(--teal);background:#fafaf6}
.opt input,.mopt input{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;border:1.5px solid var(--line-2);
  background:var(--paper);position:relative;flex:none;
  transition:border-color var(--t-base);
}
.opt input{border-radius:50%}
.opt input:checked{border-color:var(--teal)}
.opt input:checked::after{
  content:"";position:absolute;inset:3px;background:var(--teal);border-radius:50%;
}
.mopt input:checked{border-color:var(--teal);background:var(--teal)}
.mopt input:checked::after{
  content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;
  border:solid var(--paper);border-width:0 2px 2px 0;transform:rotate(45deg);
}
.opt:has(input:checked),.mopt:has(input:checked){border-color:var(--teal);background:#fafaf6}
.opt span,.mopt span{font-size:.92rem;color:var(--ink)}

/* visual options (immobile type) */
.vopt{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:1.3rem 1rem;border:1px solid var(--line-2);background:var(--paper);
  cursor:pointer;transition:border-color var(--t-base),background var(--t-base),transform var(--t-base);
}
.choice:has(.vopt){display:grid;grid-template-columns:repeat(2,1fr);gap:.6rem}
.choice:has(.vopt) legend{grid-column:1/-1}
.vopt input{
  appearance:none;width:0;height:0;position:absolute;
}
.vopt .vi{
  font-size:1.8rem;color:var(--teal);margin-bottom:.6rem;font-family:var(--serif);
  transition:transform var(--t-base);
}
.vopt strong{font-weight:500;font-size:.88rem;color:var(--ink);line-height:1.3}
.vopt:hover{border-color:var(--teal);background:#fafaf6;transform:translateY(-2px)}
.vopt:has(input:checked){border-color:var(--teal);background:#fafaf6;box-shadow:0 0 0 2px var(--teal) inset}
.vopt:has(input:checked) .vi{transform:scale(1.1)}

.check{display:flex;align-items:flex-start;gap:.7rem;margin-bottom:var(--s-3);font-size:.88rem;color:var(--stone-2);cursor:pointer;line-height:1.5}
.check input{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;border:1.5px solid var(--line-2);
  background:var(--paper);position:relative;flex:none;margin-top:2px;
}
.check input:checked{border-color:var(--teal);background:var(--teal)}
.check input:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:9px;
  border:solid var(--paper);border-width:0 2px 2px 0;transform:rotate(45deg);
}
.check a{color:var(--teal);text-decoration:underline}

.fstep-nav{display:flex;justify-content:space-between;align-items:center;margin-top:var(--s-3);gap:var(--s-2)}

.form-msg{
  padding:1rem;margin-bottom:var(--s-2);
  font-size:.9rem;border-left:3px solid var(--line-2);
  background:var(--bone);display:none;
}
.form-msg.ok{display:block;border-color:var(--ok);color:var(--ok);background:#f1f6ed}
.form-msg.err{display:block;border-color:var(--err);color:var(--err);background:#faeded}

/* ---------- 18. FOOTER ---------- */
.footer{background:var(--ink);color:var(--paper);padding:var(--s-7) 0 var(--s-3)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--s-5);padding-bottom:var(--s-5);border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand img{height:64px;width:auto;margin-bottom:var(--s-3);filter:brightness(0) invert(1);opacity:.92}
.foot-tag{font-size:.74rem;letter-spacing:.16em;color:var(--accent);font-weight:600;margin-bottom:var(--s-2)}
.foot-addr{font-size:.86rem;color:rgba(255,255,255,.6);line-height:1.6}
.foot-col h4{font-family:var(--sans);font-size:.78rem;color:var(--accent);letter-spacing:.16em;text-transform:uppercase;font-weight:600;margin-bottom:var(--s-2)}
.foot-col ul{display:flex;flex-direction:column;gap:.55rem}
.foot-col li{font-size:.9rem;color:rgba(255,255,255,.7)}
.foot-col a{color:rgba(255,255,255,.7);transition:color var(--t-base)}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:var(--s-3);font-size:.78rem;color:rgba(255,255,255,.5);
  letter-spacing:.04em;flex-wrap:wrap;gap:var(--s-2);
}
.foot-bottom a{color:rgba(255,255,255,.6)}
.foot-bottom a:hover{color:var(--accent)}

/* ==========================================================
   19. FORM SELECTION FIX — guaranteed-visible checked state
   (class-based, independent of :has() / input ::after support)
   ========================================================== */
.opt.is-checked,.mopt.is-checked{border-color:var(--teal);background:#fafaf6}
.opt.is-checked input{border-color:var(--teal)}
.opt.is-checked input::after{content:"";position:absolute;inset:3px;background:var(--teal);border-radius:50%}
.mopt.is-checked input{border-color:var(--teal);background:var(--teal)}
.mopt.is-checked input::after{content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;border:solid var(--paper);border-width:0 2px 2px 0;transform:rotate(45deg)}
.vopt.is-checked{border-color:var(--teal);background:#fafaf6;box-shadow:0 0 0 2px var(--teal) inset}
.vopt.is-checked .vi{transform:scale(1.1)}
.check.is-checked input{border-color:var(--teal);background:var(--teal)}
.check.is-checked input::after{content:"";position:absolute;left:5px;top:1px;width:5px;height:9px;border:solid var(--paper);border-width:0 2px 2px 0;transform:rotate(45deg)}
.opt input:focus-visible,.mopt input:focus-visible,.vopt input:focus-visible,.check input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.choice.is-bad{outline:1px solid var(--err);outline-offset:6px;border-radius:2px}

/* ==========================================================
   20. PORTFOLIO FILTERS + LIGHTBOX
   ========================================================== */
.pf-filters{display:flex;flex-wrap:wrap;gap:.5rem;margin:var(--s-4) 0 var(--s-3)}
.pf-chip{
  font-family:var(--sans);font-size:.78rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--stone-2);
  padding:.55rem 1.05rem;border:1px solid var(--line-2);background:var(--paper);
  border-radius:40px;transition:color var(--t-base),background var(--t-base),border-color var(--t-base),transform var(--t-fast);
}
.pf-chip:hover{border-color:var(--accent);color:var(--ink);transform:translateY(-1px)}
.pf-chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.cat-title[hidden],.gallery[hidden]{display:none!important}
.gitem{cursor:zoom-in}
.gitem::after{
  content:"⤢";position:absolute;top:.7rem;right:.7rem;z-index:2;
  width:34px;height:34px;display:grid;place-items:center;
  background:rgba(12,33,53,.55);color:var(--paper);font-size:.9rem;
  backdrop-filter:blur(4px);opacity:0;transform:scale(.85);
  transition:opacity var(--t-base),transform var(--t-base);
}
.gitem:hover::after{opacity:1;transform:scale(1)}
/* portfolio filtered animation */
.gitem.pf-in{animation:pfIn .5s cubic-bezier(.16,1,.3,1) both}
@keyframes pfIn{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}

.lightbox{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;
  background:rgba(8,20,33,.94);backdrop-filter:blur(8px);
  padding:clamp(1rem,5vw,4rem);
}
.lightbox.is-open{display:flex;animation:lbFade .3s ease}
@keyframes lbFade{from{opacity:0}to{opacity:1}}
.lb-stage{position:relative;max-width:min(92vw,1400px);max-height:88vh;display:flex;flex-direction:column;align-items:center}
.lb-stage img{max-width:100%;max-height:84vh;width:auto;height:auto;object-fit:contain;box-shadow:0 30px 80px rgba(0,0,0,.5);border:1px solid rgba(196,165,114,.25)}
.lb-count{margin-top:.9rem;color:rgba(255,255,255,.6);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase}
.lb-close{position:absolute;top:1.2rem;right:1.4rem;color:var(--paper);font-size:2.4rem;line-height:1;width:48px;height:48px;background:none;opacity:.8;transition:opacity var(--t-base),transform var(--t-base)}
.lb-close:hover{opacity:1;transform:rotate(90deg)}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;font-size:2rem;line-height:1;
  color:var(--paper);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  transition:background var(--t-base),border-color var(--t-base),transform var(--t-fast);
}
.lb-nav:hover{background:rgba(196,165,114,.25);border-color:var(--accent)}
.lb-prev{left:clamp(.6rem,3vw,2.5rem)}
.lb-next{right:clamp(.6rem,3vw,2.5rem)}

/* ==========================================================
   21. CATALOGHI — single / coming-soon
   ========================================================== */
.cat-grid-single{grid-template-columns:minmax(0,520px)!important;justify-content:start}
.cat-card-soon{
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 70%,var(--teal) 140%);
  cursor:default;border:1px solid rgba(196,165,114,.25);
}
.cat-card-soon::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(45deg,rgba(196,165,114,.05) 0 12px,transparent 12px 24px);
  pointer-events:none;
}
.cat-cta-soon{
  display:inline-flex;align-items:center;gap:.5rem;color:var(--accent);
}
.cat-cta-soon::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);animation:soonPulse 1.8s ease-in-out infinite}
@keyframes soonPulse{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}

/* ==========================================================
   22. MAP LINK
   ========================================================== */
.map-link{
  display:inline-flex;align-items:center;gap:.55rem;margin-top:.9rem;
  font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--teal);border:1px solid var(--line-2);padding:.7rem 1.1rem;
  transition:color var(--t-base),border-color var(--t-base),background var(--t-base),transform var(--t-fast);
}
.map-link:hover{color:var(--ink);border-color:var(--accent);background:#fafaf6;transform:translateY(-1px)}
.map-link .map-pin{color:var(--accent);font-size:1rem}

/* ==========================================================
   23. LUXURY MOTION — scroll progress, hero ken-burns, magnetic
   ========================================================== */
.scroll-prog{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;background:linear-gradient(90deg,var(--teal),var(--accent));transition:width .1s linear}
.hero-bg{animation:kenburns 26s ease-in-out infinite alternate}
@keyframes kenburns{from{transform:scale(1)}to{transform:scale(1.08)}}
.btn{will-change:transform}
.primary a.is-current{color:var(--teal)}
.primary a.is-current::after{transform:scaleX(1)}
.gallery{transition:opacity var(--t-base)}


@media(max-width:1024px){
  .primary{display:none}
  .ham{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--s-3)}
  .luserna-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr;gap:var(--s-4)}
  .contact-grid{grid-template-columns:1fr;gap:var(--s-4)}
  .contact-info{position:static}
  .hero-meta{display:none}
}

/* ==========================================================
   RESPONSIVE — MOBILE
   ========================================================== */
@media(max-width:640px){
  :root{--s-6:3rem;--s-7:4rem;--s-8:5rem;--gut:1.2rem}
  .nav-inner{padding:.7rem var(--gut)}
  .brand img{height:38px}
  .nav[data-state="scrolled"] .brand img{height:34px}
  .lang{display:none}
  .nav-right .btn-small{display:none}
  .hero{padding:7rem 1.2rem 4.5rem;min-height:88svh}
  .hero h1{font-size:clamp(2.3rem,9vw,3.4rem)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .stats-grid{grid-template-columns:1fr 1fr;gap:var(--s-2)}
  .stat{padding-left:var(--s-2)}
  .luserna-grid,.svc-grid,.cat-grid,.gallery,.steps{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .choice:has(.vopt){grid-template-columns:1fr}
  .contact-form{padding:var(--s-3) var(--s-2)}
  .fstep-nav{flex-direction:column-reverse;gap:.6rem;align-items:stretch}
  .fstep-nav .btn{justify-content:center;width:100%}
  .form-progress{flex-wrap:wrap;gap:.4rem;font-size:.7rem}
  .fp-step em{display:none}
  .foot-grid{grid-template-columns:1fr;gap:var(--s-3)}
  .foot-bottom{flex-direction:column;text-align:center;gap:.6rem}
  .ci-list li{grid-template-columns:1fr;gap:.2rem}
  .ci-l{padding-top:0}
  .pf-filters{gap:.4rem}
  .pf-chip{font-size:.72rem;padding:.5rem .85rem}
  .cat-grid-single{grid-template-columns:1fr!important}
  .lb-nav{width:48px;height:48px;font-size:1.6rem}
  .lb-stage img{max-height:74vh}
}

/* ==========================================================
   REDUCED MOTION
   ========================================================== */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rev{opacity:1;transform:none}
}