/* ==========================================================
   W Importaciones Bío Bío — rediseño v4
   Base oscura de la marca + secciones "piedra" claras para la
   línea de porcelanato (se siente premium y distinta de usados).
   ========================================================== */
:root{
  --stone:#f4f1ea;
  --stone-2:#ebe5d9;
  --stone-line:#ddd5c6;
  --ink:#17140f;
  --ink-muted:#6d6558;
  --accent-ink:#c95400;           /* naranjo con contraste AA sobre piedra */
  --grad:linear-gradient(135deg,#ff9d2e,#ff6a00);
  --radius:18px;
  --maxw:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-head:"Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
html{ scroll-behavior:smooth; scroll-padding-top:84px; }
body{ -webkit-font-smoothing:antialiased; overflow-x:hidden; }
body.nav-open{ overflow:hidden; }
img{ max-width:100%; }
h1,h2,h3{ font-family:var(--font-head); letter-spacing:-.02em; }

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-head); font-weight:800; font-size:14px;
  padding:12px 20px; border-radius:999px; text-decoration:none;
  border:1.5px solid transparent; cursor:pointer;
  transition:transform .2s var(--ease), filter .2s, background .2s, color .2s, border-color .2s;
}
.btn:active{ transform:scale(.97); }
.btn-lg{ padding:15px 26px; font-size:15px; }
.btn-block{ width:100%; }
.btn-primary{ background:var(--grad); color:#1a0d00; box-shadow:0 8px 22px rgba(255,106,0,.28); }
.btn-primary:hover{ filter:brightness(1.06); transform:translateY(-1px); }
.btn-outline{ border-color:currentColor; color:inherit; background:transparent; }
.btn-outline:hover{ background:rgba(255,140,26,.12); border-color:var(--accent); }
.btn-ghost{ color:inherit; background:transparent; border-color:rgba(127,127,127,.35); }
.btn-ghost:hover{ border-color:var(--accent); }

.kicker{
  font-family:var(--font-head); font-size:12px; font-weight:800;
  letter-spacing:.18em; text-transform:uppercase; color:var(--accent);
  margin-bottom:10px;
}

/* ---------- Header ---------- */
.site-header{ transition:background .25s; }
.header-inner{ gap:24px; }
.brand{ flex:0 0 auto; }
.brand-logo{ height:36px; }
.main-nav{ display:flex; align-items:center; gap:4px; margin-left:auto; }
.main-nav a{
  position:relative;
  font-family:var(--font-head); font-weight:700; font-size:14px;
  color:var(--text-muted); text-decoration:none;
  padding:9px 12px; border-radius:10px;
  transition:color .15s, background .15s;
}
.main-nav a:hover{ color:#fff; background:rgba(255,255,255,.05); }
.main-nav a.current{ color:#fff; }
.main-nav a.current::after{
  content:""; position:absolute; left:12px; right:12px; bottom:3px; height:2px;
  border-radius:2px; background:var(--grad);
}
.nav-star span{
  font-size:9.5px; font-weight:900; letter-spacing:.06em; text-transform:uppercase;
  background:var(--grad); color:#1a0d00; padding:2px 6px; border-radius:999px;
  margin-left:4px; vertical-align:2px;
}
.btn-whatsapp-header{ font-family:var(--font-head); }
.nav-toggle{ display:none; }

/* ---------- HERO porcelanato ---------- */
.hero-pc{
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(255,140,26,.10), transparent 60%),
    var(--stone);
  color:var(--ink);
  overflow:hidden;
}
.hero-pc-inner{
  max-width:var(--maxw); margin:0 auto;
  padding:64px 20px 72px;
  display:grid; grid-template-columns:1.05fr 1fr; gap:56px; align-items:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-head); font-weight:800; font-size:12.5px;
  letter-spacing:.14em; text-transform:uppercase; color:var(--accent-ink);
  background:#fff; border:1px solid var(--stone-line);
  padding:7px 14px; border-radius:999px; margin-bottom:22px;
}
.eyebrow .dot{ width:8px; height:8px; border-radius:50%; background:var(--grad); box-shadow:0 0 0 4px rgba(255,122,30,.18); }
.hero-copy h1{
  font-size:clamp(34px,5.2vw,62px); font-weight:900; line-height:1.02;
  margin-bottom:20px; text-wrap:balance;
}
.hero-copy h1 em{ font-style:normal; color:var(--accent-ink); white-space:nowrap; }
.lead{ font-size:18px; line-height:1.55; color:var(--ink-muted); max-width:540px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin:30px 0 26px; }
.hero-pc .btn-outline{ color:var(--ink); border-color:var(--ink); }
.hero-pc .btn-outline:hover{ background:var(--ink); color:var(--stone); }
.hero-points{ list-style:none; display:flex; flex-wrap:wrap; gap:8px 22px; color:var(--ink-muted); font-size:14px; font-weight:600; }
.hero-points li::before{ content:"✓"; color:var(--accent-ink); font-weight:900; margin-right:7px; }

.hero-visual{
  position:relative; display:grid;
  grid-template-columns:1.35fr 1fr; grid-template-rows:1fr 1fr; gap:14px;
  height:min(560px, 62vw);
}
.hero-visual figure{ margin:0; border-radius:22px; overflow:hidden; box-shadow:0 30px 60px -28px rgba(40,28,10,.45); }
.hero-visual img{ width:100%; height:100%; object-fit:cover; display:block; transition:transform 1.2s var(--ease); }
.hero-visual figure:hover img{ transform:scale(1.04); }
.hv-main{ grid-row:1 / span 2; }
.hv-a img{ object-position:60% 40%; }
.hv-b img{ object-position:50% 40%; }
.hv-tag{
  position:absolute; left:-18px; bottom:28px;
  background:var(--ink); color:#fff; border-radius:16px;
  padding:14px 18px; display:flex; flex-direction:column; line-height:1.1;
  box-shadow:0 18px 40px -12px rgba(0,0,0,.5);
}
.hv-tag strong{ font-family:var(--font-head); font-size:24px; font-weight:900; color:var(--accent); }
.hv-tag span{ font-size:12px; color:#cfc8bb; letter-spacing:.06em; text-transform:uppercase; }

/* Entrada suave del hero */
@media (prefers-reduced-motion:no-preference){
  .hero-copy > *{ animation:rise .8s var(--ease) both; }
  .hero-copy > *:nth-child(2){ animation-delay:.06s; }
  .hero-copy > *:nth-child(3){ animation-delay:.12s; }
  .hero-copy > *:nth-child(4){ animation-delay:.18s; }
  .hero-copy > *:nth-child(5){ animation-delay:.24s; }
  .hero-visual figure{ animation:rise 1s var(--ease) both; }
  .hv-a{ animation-delay:.15s !important; } .hv-b{ animation-delay:.28s !important; }
  .hv-tag{ animation:rise .9s .45s var(--ease) both; }
}
@keyframes rise{ from{ opacity:0; transform:translateY(18px); } to{ opacity:1; transform:none; } }

/* ---------- Franja de confianza ---------- */
.trust{ background:var(--ink); color:#fff; }
.trust-inner{
  max-width:var(--maxw); margin:0 auto; padding:22px 20px;
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
}
.trust-inner div{ display:flex; flex-direction:column; gap:3px; padding-left:16px; border-left:2px solid #ff7a1e; }
.trust-inner strong{ font-family:var(--font-head); font-size:15px; font-weight:800; }
.trust-inner span{ font-size:13px; color:#b9b2a5; }

/* ---------- Secciones ---------- */
.light-section{ background:var(--stone); color:var(--ink); padding:84px 20px; }
.dark-section{ padding:84px 20px 20px; }
.dark-section.used{ padding-top:56px; padding-bottom:40px; }
.section-head{ max-width:var(--maxw); margin:0 auto 38px; }
.section-head h2{ font-size:clamp(28px,3.6vw,42px); font-weight:900; line-height:1.08; margin-bottom:12px; text-wrap:balance; }
.section-head > p:not(.kicker){ font-size:17px; color:var(--text-muted); max-width:620px; line-height:1.55; }
.light-section .section-head > p:not(.kicker){ color:var(--ink-muted); }
.light-section .kicker{ color:var(--accent-ink); }
.section-head-row{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.section-head-row h2{ margin-bottom:0; }

/* ---------- Tarjetas de porcelanato ---------- */
.pc-grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.pc-card{
  background:#fff; border:1px solid var(--stone-line); border-radius:22px; overflow:hidden;
  display:flex; flex-direction:column;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.pc-card:hover{ transform:translateY(-6px); box-shadow:0 30px 50px -30px rgba(40,28,10,.45); }
.pc-media{ position:relative; display:block; aspect-ratio:4/5; overflow:hidden; background:var(--stone-2); }
.pc-media img{ width:100%; height:100%; object-fit:cover; display:block; transition:transform .9s var(--ease); }
.pc-card:hover .pc-media img{ transform:scale(1.05); }
.pc-badge{
  position:absolute; top:14px; left:14px;
  background:rgba(255,255,255,.92); color:var(--ink);
  font-family:var(--font-head); font-weight:800; font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  padding:6px 12px; border-radius:999px; backdrop-filter:blur(4px);
}
.pc-body{ padding:22px 22px 24px; display:flex; flex-direction:column; gap:8px; flex:1; }
.pc-code{ font-size:12px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-muted); }
.pc-body h3{ font-size:24px; font-weight:900; line-height:1.1; }
.pc-tag{ color:var(--ink-muted); font-size:14.5px; }
.pc-chips{ list-style:none; display:flex; flex-wrap:wrap; gap:6px; margin:6px 0 4px; }
.pc-chips li{ font-size:12px; font-weight:700; color:var(--ink); background:var(--stone); border:1px solid var(--stone-line); padding:5px 10px; border-radius:999px; }
.pc-price{ font-family:var(--font-head); font-weight:900; font-size:22px; color:var(--accent-ink); margin-top:auto; padding-top:8px; }
.pc-price span{ display:block; font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-muted); font-weight:700; }
.pc-price small{ font-size:13px; color:var(--ink-muted); }
.pc-actions{ display:grid; grid-template-columns:1.2fr 1fr; gap:10px; margin-top:10px; }
.pc-card .btn-ghost, .pd .btn-ghost{ color:var(--ink); border-color:var(--stone-line); }
.pc-card .btn-ghost:hover, .pd .btn-ghost:hover{ border-color:var(--ink); }

/* ---------- Calculadora ---------- */
.calc-section{ background:linear-gradient(var(--stone) 0 50%, var(--bg) 50% 100%); padding:0 20px; }
.page-light .calc-section{ background:var(--stone); padding:20px 20px 84px; }
.calc-wrap{
  max-width:var(--maxw); margin:0 auto;
  background:var(--ink); color:#fff; border-radius:28px;
  padding:48px; display:grid; grid-template-columns:1fr 1.1fr; gap:48px; align-items:center;
  box-shadow:0 40px 80px -40px rgba(0,0,0,.6);
  background-image:radial-gradient(600px 300px at 0% 0%, rgba(255,122,30,.18), transparent 60%);
}
.calc-intro h2{ font-size:clamp(26px,3vw,38px); font-weight:900; line-height:1.1; margin-bottom:14px; }
.calc-intro p:not(.kicker){ color:#bdb6a9; font-size:16px; line-height:1.55; }
.calc{ background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.1); border-radius:20px; padding:24px; display:flex; flex-direction:column; gap:14px; }
.field{ display:flex; flex-direction:column; gap:6px; font-size:12.5px; font-weight:700; color:#bdb6a9; letter-spacing:.04em; flex:1; }
.field input, .field select{
  font:inherit; font-size:16px; font-weight:600; color:#fff; letter-spacing:0;
  background:#0f0d0a; border:1px solid rgba(255,255,255,.14); border-radius:12px;
  padding:12px 14px; outline:none; transition:border-color .15s, box-shadow .15s;
}
.field select{ appearance:none; background-image:linear-gradient(45deg,transparent 50%,#bdb6a9 50%),linear-gradient(135deg,#bdb6a9 50%,transparent 50%); background-position:calc(100% - 20px) 52%, calc(100% - 14px) 52%; background-size:6px 6px; background-repeat:no-repeat; padding-right:36px; }
.field input:focus, .field select:focus{ border-color:#ff8c1a; box-shadow:0 0 0 3px rgba(255,140,26,.2); }
.field-row{ display:flex; gap:12px; }
.field-row[hidden]{ display:none; }
.calc-mode{ display:grid; grid-template-columns:1fr 1fr; background:#0f0d0a; border-radius:12px; padding:4px; border:1px solid rgba(255,255,255,.1); }
.calc-mode button{ font:inherit; font-size:13.5px; font-weight:700; color:#bdb6a9; background:none; border:0; padding:9px; border-radius:9px; cursor:pointer; transition:background .2s, color .2s; }
.calc-mode button.active{ background:#2a241c; color:#fff; }
.check{ display:flex; align-items:center; gap:8px; font-size:13.5px; color:#bdb6a9; cursor:pointer; }
.check input{ accent-color:#ff7a1e; width:16px; height:16px; }
.calc-result{ min-height:92px; }
.calc-empty{ color:#8f887b; font-size:14px; padding:18px; text-align:center; border:1px dashed rgba(255,255,255,.14); border-radius:14px; }
.calc-figures{ display:grid; grid-template-columns:repeat(auto-fit,minmax(110px,1fr)); gap:10px; }
.calc-figures div{ background:#0f0d0a; border-radius:14px; padding:12px; display:flex; flex-direction:column; gap:2px; }
.calc-figures span{ font-size:11px; color:#8f887b; text-transform:uppercase; letter-spacing:.08em; font-weight:700; }
.calc-figures strong{ font-family:var(--font-head); font-size:22px; font-weight:900; color:#ff9d2e; font-variant-numeric:tabular-nums; }
.calc-note{ font-size:12.5px; color:#8f887b; margin-top:8px; }

/* ---------- Departamentos ---------- */
.dept-grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.dept{
  position:relative; display:flex; flex-direction:column; text-decoration:none; color:#fff;
  border-radius:var(--radius); overflow:hidden; border:1px solid var(--border); background:var(--card-bg);
  transition:transform .3s var(--ease), border-color .3s;
}
.dept:hover{ transform:translateY(-5px); border-color:var(--accent); }
.dept-media{ aspect-ratio:16/10; overflow:hidden; background:#000; }
.dept-media img{ width:100%; height:100%; object-fit:cover; object-position:top; display:block; transform-origin:80% 62%; transform:scale(1.85); transition:transform .8s var(--ease); }
.dept:hover .dept-media img{ transform:scale(1.95); }
.dept-body{ padding:20px 22px 24px; display:flex; flex-direction:column; gap:8px; }
.dept-count{ font-size:12px; font-weight:800; color:var(--accent); letter-spacing:.08em; text-transform:uppercase; }
.dept-body h3{ font-size:21px; font-weight:900; line-height:1.15; }
.dept-body p{ color:var(--text-muted); font-size:14.5px; line-height:1.5; }
.dept-link{ font-family:var(--font-head); font-weight:800; font-size:14px; color:#fff; margin-top:4px; }
.dept:hover .dept-link{ color:var(--accent); }

.used-grid{ padding:0 0 20px; grid-template-columns:repeat(3,1fr); }

/* ---------- Contacto y footer ---------- */
.contact{ padding:40px 20px 80px; }
.contact-inner{
  max-width:var(--maxw); margin:0 auto; border-radius:28px; padding:48px;
  background:var(--bg-alt); border:1px solid var(--border);
  display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center;
}
.contact h2{ font-size:clamp(26px,3vw,38px); font-weight:900; margin-bottom:10px; }
.contact-inner > div > p:not(.kicker){ color:var(--text-muted); margin-bottom:24px; font-size:16px; line-height:1.55; }
.contact-list{ list-style:none; display:flex; flex-direction:column; }
.contact-list li{ display:flex; flex-direction:column; gap:2px; padding:14px 0; border-bottom:1px solid var(--border); }
.contact-list li:last-child{ border-bottom:0; }
.contact-list span{ font-size:11.5px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--text-muted); }
.contact-list a{ color:#fff; text-decoration:none; font-weight:700; font-size:16px; }
.contact-list a:hover{ color:var(--accent); }
.site-footer{ gap:14px; align-items:center; }
.footer-logo{ height:30px; opacity:.9; }
.footer-nav{ display:flex; flex-wrap:wrap; justify-content:center; gap:6px 20px; }
.footer-nav a{ color:var(--text-muted); text-decoration:none; font-weight:600; }
.footer-nav a:hover{ color:#fff; }

.wa-float{
  position:fixed; right:18px; bottom:18px; z-index:30;
  width:58px; height:58px; border-radius:50%;
  background:#25d366; color:#fff; display:none; align-items:center; justify-content:center;
  box-shadow:0 12px 28px rgba(0,0,0,.4);
}
.wa-float svg{ width:28px; height:28px; }

/* ---------- Página Porcelanatos ---------- */
.page-light{ background:var(--stone); }
.page-hero-light{ max-width:var(--maxw); margin:0 auto; padding:56px 20px 34px; color:var(--ink); }
.page-hero-light .kicker{ color:var(--accent-ink); }
.page-hero-light h1{ font-size:clamp(36px,5.4vw,64px); font-weight:900; line-height:1.02; margin-bottom:16px; }
.crumbs{ font-size:13px; color:var(--ink-muted); margin-bottom:18px; }
.crumbs a{ color:inherit; }
.cat-hero .crumbs, .cat-hero .crumbs a{ color:var(--text-muted); }
.pd-jump{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.pd-jump a{ text-decoration:none; color:var(--ink); font-weight:700; font-size:14px; background:#fff; border:1px solid var(--stone-line); padding:9px 16px; border-radius:999px; transition:border-color .15s, background .15s; }
.pd-jump a:hover{ border-color:var(--ink); }
.pd-jump .pd-jump-calc{ background:var(--ink); color:#fff; border-color:var(--ink); }
.pd-list{ color:var(--ink); max-width:var(--maxw); margin:0 auto; padding:0 20px 40px; display:flex; flex-direction:column; gap:28px; }
.pd{ background:#fff; border:1px solid var(--stone-line); border-radius:28px; padding:22px; display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; scroll-margin-top:90px; }
.pd-flip .pd-media{ order:2; }
.pd-media{ position:relative; }
.pd-main{ display:block; width:100%; border:0; padding:0; cursor:zoom-in; border-radius:20px; overflow:hidden; aspect-ratio:4/5; background:var(--stone-2); }
.pd-main img{ width:100%; height:100%; object-fit:cover; display:block; transition:transform .9s var(--ease); }
.pd-main:hover img{ transform:scale(1.04); }
.pd-thumb{ position:absolute; right:16px; bottom:16px; width:92px; border:3px solid #fff; border-radius:14px; overflow:hidden; padding:0; cursor:zoom-in; background:#fff; box-shadow:0 12px 30px rgba(0,0,0,.25); }
.pd-thumb img{ display:block; width:100%; aspect-ratio:1/2; object-fit:cover; }
.pd-thumb span{ position:absolute; left:0; right:0; bottom:0; font-size:10px; font-weight:800; text-transform:uppercase; letter-spacing:.06em; color:#fff; background:rgba(0,0,0,.55); padding:4px 0; text-align:center; }
.pd-info{ padding:10px 18px 10px 0; }
.pd-flip .pd-info{ padding:10px 0 10px 18px; }
.pd-info h2{ font-size:clamp(30px,3.6vw,44px); font-weight:900; line-height:1.05; margin:6px 0 6px; }
.pd-tag{ font-weight:700; color:var(--accent-ink); margin-bottom:14px; }
.pd-blurb{ color:var(--ink-muted); line-height:1.6; margin-bottom:20px; }
.pd-specs{ display:grid; grid-template-columns:1fr 1fr; gap:0 24px; margin-bottom:22px; }
.pd-specs div{ padding:10px 0; border-bottom:1px solid var(--stone-line); }
.pd-specs dt{ font-size:11px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-muted); }
.pd-specs dd{ font-size:14.5px; font-weight:600; }
.pd-buy{ display:flex; flex-wrap:wrap; align-items:center; gap:12px; }
.pd-buy .pc-price{ margin:0 12px 0 0; padding:0; }
.why{ padding-top:40px; }
.why-grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.why-grid div{ background:#fff; border:1px solid var(--stone-line); border-radius:20px; padding:22px; }
.why-grid strong{ font-family:var(--font-head); font-size:17px; font-weight:900; display:block; margin-bottom:6px; }
.why-grid p{ color:var(--ink-muted); font-size:14.5px; line-height:1.5; }
.page-light .contact{ background:var(--bg); padding-top:80px; }
.page-light .site-footer{ background:var(--bg); }

/* ---------- Catálogo ---------- */
.cat-hero{ max-width:var(--maxw); margin:0 auto; padding:44px 20px 22px; }
.cat-hero h1{ font-size:clamp(30px,4.4vw,50px); font-weight:900; line-height:1.05; margin-bottom:10px; }
.cat-hero > p:not(.crumbs){ color:var(--text-muted); font-size:16.5px; max-width:640px; }
.dept-tabs{ display:flex; gap:6px; margin-top:26px; border-bottom:1px solid var(--border); overflow-x:auto; scrollbar-width:none; }
.dept-tabs::-webkit-scrollbar{ display:none; }
.dept-tabs a{ font-family:var(--font-head); font-weight:800; font-size:14.5px; color:var(--text-muted); text-decoration:none; padding:12px 16px; border-bottom:2px solid transparent; white-space:nowrap; margin-bottom:-1px; }
.dept-tabs a:hover{ color:#fff; }
.dept-tabs a.active{ color:#fff; border-color:#ff7a1e; }
.cat-tools{ max-width:var(--maxw); margin:0 auto; padding:10px 20px 16px; display:flex; align-items:center; gap:16px; }
.search{ flex:1; max-width:520px; display:flex; align-items:center; gap:10px; background:var(--bg-alt); border:1px solid var(--border); border-radius:14px; padding:0 14px; color:var(--text-muted); transition:border-color .15s; }
.search:focus-within{ border-color:var(--accent); }
.search input{ flex:1; font:inherit; font-size:16px; color:#fff; background:none; border:0; outline:none; padding:13px 0; }
.result-count{ color:var(--text-muted); font-size:14px; font-weight:600; white-space:nowrap; }
.filters{ justify-content:flex-start; padding-bottom:28px; }
.filter-btn em{ font-style:normal; font-size:12px; opacity:.65; margin-left:4px; }
.empty{ grid-column:1 / -1; text-align:center; color:var(--text-muted); padding:48px 20px; border:1px dashed var(--border); border-radius:16px; }
.empty a{ color:var(--accent); font-weight:700; }

/* ---------- Revelado al hacer scroll ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); transition-delay:var(--d,0ms); }
.reveal.in{ opacity:1; transform:none; }

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .main-nav a{ padding:9px 8px; font-size:13.5px; }
  .pc-grid{ gap:18px; }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:920px){
  .nav-toggle{
    display:flex; flex-direction:column; justify-content:center; gap:5px;
    width:44px; height:44px; border-radius:12px; background:var(--bg-alt); border:1px solid var(--border); cursor:pointer; padding:0 11px; flex:0 0 auto;
  }
  .nav-toggle span{ display:block; height:2px; background:#fff; border-radius:2px; transition:transform .25s var(--ease), opacity .2s; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
  .main-nav{
    position:absolute; left:0; right:0; top:100%; height:calc(100dvh - 100%); z-index:19;
    background:#0c0e12; overflow-y:auto; flex-direction:column; align-items:stretch; gap:2px;
    padding:18px 16px; margin:0;
    opacity:0; pointer-events:none; transform:translateY(-8px); transition:opacity .2s, transform .25s var(--ease);
  }
  .main-nav.open{ opacity:1; pointer-events:auto; transform:none; }
  .main-nav a{ font-size:19px; padding:15px 14px; border-bottom:1px solid var(--border); border-radius:0; }
  .main-nav a.current::after{ display:none; }
  .main-nav a.current{ color:var(--accent); }
  .btn-whatsapp-header{ margin-left:auto; }
  .hero-pc-inner{ grid-template-columns:1fr; gap:40px; padding-top:40px; }
  .hero-visual{ height:min(460px, 95vw); }
  .hv-tag{ left:12px; bottom:12px; }
  .pc-grid, .dept-grid, .used-grid{ grid-template-columns:repeat(2,1fr); }
  .calc-wrap{ grid-template-columns:1fr; padding:32px; gap:28px; }
  .contact-inner{ grid-template-columns:1fr; padding:32px; }
  .trust-inner{ grid-template-columns:repeat(2,1fr); }
  .pd{ grid-template-columns:1fr; gap:22px; }
  .pd-flip .pd-media{ order:0; }
  .pd-info, .pd-flip .pd-info{ padding:0 6px 8px; }
}
@media (max-width:600px){
  .header-inner{ flex-direction:row !important; align-items:center !important; padding:12px 16px; gap:10px; }
  .brand-logo{ height:30px; }
  .btn-whatsapp-header{ width:auto !important; padding:10px 14px; }
  .btn-whatsapp-header span{ display:none; }
  .hero-pc-inner{ padding:30px 16px 48px; }
  .lead{ font-size:16.5px; }
  .hero-actions .btn{ flex:1 1 100%; }
  .hero-visual{ grid-template-columns:1.25fr 1fr; gap:10px; height:auto; aspect-ratio:1/1.05; }
  .trust-inner{ gap:16px 12px; padding:20px 16px; }
  .trust-inner strong{ font-size:14px; }
  .light-section{ padding:60px 16px; }
  .dark-section{ padding:60px 16px 12px; }
  .pc-grid, .dept-grid{ grid-template-columns:1fr; }
  .used-grid{ grid-template-columns:1fr 1fr; gap:12px; }
  .used-grid .card-body{ padding:12px; }
  .used-grid .card-desc{ display:none; }
  .used-grid .card-title{ font-size:14px; }
  .used-grid .card-price{ font-size:17px; }
  .used-grid .card-cta{ font-size:13px; padding:9px; }
  .calc-section{ padding:0 12px; }
  .calc-wrap{ padding:24px 18px; border-radius:22px; }
  .calc{ padding:16px; }
  .calc-figures{ grid-template-columns:repeat(2,1fr); gap:6px; }
  .calc-figures div{ padding:10px 8px; }
  .calc-figures strong{ font-size:18px; }
  .contact{ padding:24px 12px 90px; }
  .contact-inner{ padding:26px 20px; border-radius:22px; }
  .wa-float{ display:flex; }
  .pd{ padding:12px; border-radius:22px; }
  .pd-specs{ grid-template-columns:1fr; }
  .pd-buy .pc-price{ flex:1 1 100%; }
  .pd-buy .btn{ flex:1 1 100%; }
  .why-grid{ grid-template-columns:1fr; }
  .cat-tools{ flex-direction:column; align-items:stretch; gap:8px; padding:6px 16px 14px; }
  .filters{ flex-wrap:nowrap; overflow-x:auto; scrollbar-width:none; padding:0 16px 22px; }
  .filters::-webkit-scrollbar{ display:none; }
  .filter-btn{ white-space:nowrap; flex:0 0 auto; }
  .catalog{ padding:0 16px 40px; }
}

/* Evita desbordes en grillas con formularios */
.calc-wrap > *, .pd > *, .contact-inner > *, .hero-pc-inner > *{ min-width:0; }
.field{ min-width:0; }
.field input, .field select{ width:100%; min-width:0; }
.nowrap{ white-space:nowrap; }

.pc-box{ display:block; font-style:normal; font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size:13px; font-weight:700; color:var(--ink); margin-top:4px; }
.calc-total{ grid-column:1 / -1; background:linear-gradient(135deg,rgba(255,157,46,.16),rgba(255,106,0,.1)) !important; border:1px solid rgba(255,140,26,.35); }
.calc-total strong{ font-size:28px; }