/* =====================================================================
   VIAGGIO · Sistema de diseño compartido (páginas de producto)
   Usado por roma.html, firenze.html, bari.html
   ===================================================================== */
:root{
  --ink:#0E0E10; --ink-soft:#1a1a1d;
  --paper:#ffffff; --paper-2:#f6f5f3; --paper-3:#ecebe7;
  --gold:#C8A24B; --gold-soft:#d9be83;
  --muted:#6f6e6b; --line:rgba(14,14,16,.12); --line-2:rgba(255,255,255,.16);
  --maxw:1240px; --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,.display{font-family:'Montserrat',sans-serif;font-weight:600;line-height:1.05;letter-spacing:-.02em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font-family:'Montserrat',sans-serif;font-weight:500;font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;color:var(--gold)}
.muted{color:var(--muted)}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:.6em;font-family:'Montserrat',sans-serif;font-weight:500;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;padding:16px 30px;border:1px solid transparent;cursor:pointer;transition:all .4s var(--ease);background:none;border-radius:2px}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:var(--gold);color:var(--ink)}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-gold:hover{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.btn-line{border-color:var(--line);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}

/* Nav (sólida desde el inicio en páginas de producto) */
header.nav{position:fixed;top:0;left:0;right:0;z-index:80;display:flex;align-items:center;justify-content:space-between;padding:16px 28px;transition:all .5s var(--ease);background:rgba(255,255,255,.94);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
header.nav .brand{display:inline-flex;align-items:center;font-family:'Montserrat',sans-serif;font-weight:600;font-size:1.25rem;letter-spacing:.3em;color:var(--ink)}
header.nav .brand img{height:30px;width:auto;display:block}
header.nav .links{display:flex;gap:30px;align-items:center}
header.nav .links a{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);transition:color .3s}
header.nav .links a:hover{color:var(--gold)}
header.nav .nav-cta{font-family:'Montserrat',sans-serif;font-weight:500;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--ink);padding:10px 22px;border-radius:2px;color:var(--ink);transition:all .35s}
header.nav .nav-cta:hover{background:var(--ink);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);display:block;transition:.3s}

/* Reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

/* Secciones */
section{position:relative}
.section-pad{padding:clamp(64px,9vw,120px) 0}
.section-head{max-width:660px;margin-bottom:56px}
.section-head h2{font-size:clamp(1.8rem,3.4vw,2.8rem);margin:.4em 0 .5em}
.section-head p{color:var(--muted);font-size:1.04rem;font-weight:300}

/* Breadcrumb */
.crumbs{font-family:'Montserrat',sans-serif;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:30px}
.crumbs a:hover{color:var(--gold)}
.crumbs .sep{margin:0 .6em;color:var(--line)}

/* Producto + compra (image-swap por color) */
.product{background:var(--paper)}
.product.first{padding-top:clamp(120px,15vh,168px)}
.product-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:stretch}
.pcard{position:relative;background:linear-gradient(160deg,#f7f6f4,#eceae6);border:1px solid var(--line);border-radius:8px;overflow:hidden;min-height:520px}
.pcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:6%;opacity:0;transition:opacity .55s var(--ease)}
.pcard img.show{opacity:1}
.pcard .pbadge{position:absolute;top:18px;left:18px;z-index:3;font-family:'Montserrat',sans-serif;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.product-info{display:flex;flex-direction:column;justify-content:center}
.product-name{font-family:'Montserrat',sans-serif;font-size:2.1rem;font-weight:600;letter-spacing:-.02em;margin-bottom:6px}
.product-sub{color:var(--muted);font-weight:300;margin-bottom:16px}
.product-lead{font-weight:300;color:#3a3a3c;line-height:1.6;margin-bottom:24px;font-size:1rem}
.price{font-family:'Montserrat',sans-serif;font-size:1.85rem;font-weight:600;margin-bottom:4px}
.price small{font-size:.8rem;color:var(--muted);font-weight:400;letter-spacing:.05em}
.price-note{font-size:.82rem;color:#9a7b29;margin-bottom:28px}
.swatches{display:flex;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.swatch{width:40px;height:40px;border-radius:50%;cursor:pointer;border:2px solid #fff;outline:1px solid var(--line);outline-offset:2px;transition:.3s;box-shadow:0 1px 4px rgba(0,0,0,.12)}
.swatch[aria-pressed="true"]{outline-color:var(--gold);outline-width:2px;transform:scale(1.06)}
.swatch-label{font-size:.9rem;color:var(--muted);margin-bottom:22px}
.swatch-label b{color:var(--ink);font-weight:600}
.size-label{font-family:'Montserrat',sans-serif;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.sizes{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.size{font-family:'Montserrat',sans-serif;font-size:.82rem;font-weight:500;padding:11px 16px;border:1px solid var(--line);border-radius:3px;background:#fff;cursor:pointer;transition:.25s;color:var(--ink);letter-spacing:.02em}
.size:hover{border-color:var(--ink)}
.size[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.size.set{border-color:var(--gold);color:#9a7b29}
.size.set[aria-pressed="true"]{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.set-note{font-size:.82rem;color:#9a7b29;margin-bottom:22px;display:none}
.set-note.show{display:block}
.size-static{font-size:.9rem;color:var(--muted);margin-bottom:24px}
.size-static b{color:var(--ink);font-weight:600}
.pays{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.pay{font-family:'Montserrat',sans-serif;font-size:.82rem;font-weight:500;padding:11px 16px;border:1px solid var(--line);border-radius:3px;background:#fff;cursor:pointer;transition:.25s;color:var(--ink);letter-spacing:.02em}
.pay:hover{border-color:var(--ink)}
.pay[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.pay b{color:var(--gold);font-weight:700}
.pay[aria-pressed="true"] b{color:var(--gold)}
.pay-note{font-size:.82rem;color:#9a7b29;margin-bottom:22px;display:none;line-height:1.5}
.pay-note.show{display:block}
.dim-note{font-size:.88rem;color:#3a3a3c;margin:0 0 20px;display:none}
.dim-note.show{display:block}
.dim-note b{color:var(--ink);font-weight:600}
.dim-sub{color:var(--muted);font-size:.8rem}
.specs{list-style:none;margin:0 0 30px;border-top:1px solid var(--line)}
.specs li{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line);font-size:.94rem;color:#3a3a3c}
.specs li .dot{color:var(--gold);font-size:1.1rem;line-height:1.2}
.specs li b{color:var(--ink);font-weight:600}
.qty-row{display:flex;align-items:center;gap:18px;margin-bottom:22px}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:2px}
.qty button{background:none;border:0;color:var(--ink);width:42px;height:46px;font-size:1.2rem;cursor:pointer;transition:.2s}
.qty button:hover{color:var(--gold)}
.qty span{min-width:36px;text-align:center;font-family:'Montserrat',sans-serif}
.buy-row{display:flex;flex-direction:column;gap:12px}
.buy-row .btn-line{justify-content:center}

/* Galería (lineup) */
.gallery{background:var(--paper-2)}
.gallery-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.gallery-grid.cols3{grid-template-columns:repeat(3,1fr)}
.gallery-grid.cols4{grid-template-columns:repeat(4,1fr)}
.gallery-grid.cols2{grid-template-columns:repeat(2,1fr)}
.gallery-grid.cols2 .gcell{aspect-ratio:4/3}
.gcell{position:relative;overflow:hidden;border-radius:6px;background:#fff;aspect-ratio:4/5;margin:0;border:1px solid var(--line)}
.gcell img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.gcell:hover img{transform:scale(1.05)}
.gcell .cap{position:absolute;left:0;right:0;bottom:0;padding:28px 14px 13px;background:linear-gradient(0deg,rgba(0,0,0,.62),transparent);color:#fff;font-family:'Montserrat',sans-serif;font-size:.74rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;text-align:center}

/* Confianza */
.trust{background:var(--ink);color:#fff}
.trust .eyebrow{color:var(--gold-soft)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.trust-cell{padding:40px 26px;border-right:1px solid var(--line-2);text-align:center}
.trust-cell:last-child{border-right:0}
.trust-cell .ic{color:var(--gold);margin-bottom:16px;display:flex;justify-content:center}
.trust-cell .ic svg{width:30px;height:30px}
.trust-cell h4{font-family:'Montserrat',sans-serif;font-size:1rem;font-weight:600;margin-bottom:8px}
.trust-cell p{font-size:.85rem;color:rgba(255,255,255,.6);font-weight:300}

/* Footer */
footer.ft{background:var(--ink);color:rgba(255,255,255,.6);padding:60px 0 40px}
footer.ft .row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
footer.ft .brand{display:inline-flex;align-items:center;font-family:'Montserrat',sans-serif;font-weight:600;letter-spacing:.3em;color:#fff;font-size:1.1rem}
footer.ft .brand img{height:26px;width:auto;display:block;filter:brightness(0) invert(1)}
footer.ft .flinks{display:flex;gap:26px;font-size:.82rem;flex-wrap:wrap}
footer.ft .flinks a:hover{color:var(--gold)}
footer.ft .legal{margin-top:40px;font-size:.74rem;color:rgba(255,255,255,.35)}

/* Toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(120%);background:var(--ink);color:#fff;padding:15px 26px;border-radius:40px;font-size:.9rem;z-index:200;transition:transform .5s var(--ease);box-shadow:0 10px 40px rgba(0,0,0,.3)}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast b{color:var(--gold-soft)}

@media(max-width:900px){
  .product-grid{grid-template-columns:1fr;gap:36px}
  .pcard{min-height:420px}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  header.nav .links{display:none}
  .nav-toggle{display:flex}
  header.nav .links.mobile-open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:rgba(255,255,255,.98);padding:24px 28px;gap:20px}
}
@media(max-width:760px){
  .gallery-grid,.gallery-grid.cols4{grid-template-columns:repeat(2,1fr)}
  .gallery-grid.cols3{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-cell:nth-child(2){border-right:0}
  .trust-cell{border-bottom:1px solid var(--line-2)}
}
@media(max-width:480px){
  .wrap{padding:0 20px}
  .product.first{padding-top:96px}
  .buy-row .btn{width:100%}
  .section-head{margin-bottom:40px}
}
@media(prefers-reduced-motion:reduce){.reveal{transition:none;opacity:1;transform:none}}