/* ══════════════════════════════════════════════════════════
   PreservatiGold — estilos compartidos de páginas SEO
   (colección, regalos, blog). Cargado con <link> same-origin.
══════════════════════════════════════════════════════════ */
:root{
  --navy:#1A2540;--navy2:#3A4A65;--gold:#D4AF37;--gold-d:#B8860B;
  --gold-l:#E8C770;--bg:#FAFBFF;--ink:#1A2540;--muted:#4A6080;
  --line:rgba(212,175,55,0.18);--green:#1E9E5A;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Kanit',sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1000px;margin:0 auto;padding:0 clamp(1.1rem,4vw,2rem)}
.wrap--narrow{max-width:760px}
h1,h2,h3{text-transform:uppercase;letter-spacing:-0.01em;line-height:1.05}
h1{font-size:clamp(2rem,5.4vw,3.4rem);font-weight:900;color:var(--navy)}
h2{font-size:clamp(1.4rem,3vw,2.1rem);font-weight:900;margin-bottom:1rem}
h3{font-size:clamp(1.05rem,2vw,1.3rem);font-weight:800;margin-bottom:.5rem;letter-spacing:0}
p{margin-bottom:1rem;color:var(--muted)}
.gold-text{background:linear-gradient(180deg,#C49A28 0%,#D4AF37 40%,#E8C770 70%,#B8860B 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* Header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(250,251,255,0.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:58px;max-width:1080px;margin:0 auto;padding:0 clamp(1.1rem,4vw,2rem)}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:900;text-transform:uppercase;letter-spacing:.04em;text-decoration:none;color:var(--navy);font-size:.95rem}
.brand img{width:26px;height:26px}
.nav{display:flex;gap:1.35rem;align-items:center}
.nav a{text-decoration:none;font-weight:500;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);transition:color .2s}
.nav a:hover,.nav a[aria-current="page"]{color:var(--navy)}
.btn{display:inline-block;text-decoration:none;border:none;cursor:pointer;border-radius:9999px;background:linear-gradient(123deg,#B8860B 7%,#D4AF37 37%,#E8C770 72%,#D4AF37 100%);color:var(--navy);font-family:'Kanit',sans-serif;font-weight:900;text-transform:uppercase;letter-spacing:.1em;padding:.6rem 1.5rem;font-size:.82rem;box-shadow:0 4px 14px rgba(212,175,55,.38);transition:transform .2s,box-shadow .2s}
.btn:hover{transform:scale(1.03);box-shadow:0 8px 24px rgba(212,175,55,.55)}
.btn-lg{padding:.95rem 2.4rem;font-size:1rem}

/* Breadcrumb */
.crumb{font-size:.78rem;color:#8A9BB5;padding:1rem 0 .2rem;text-transform:uppercase;letter-spacing:.05em}
.crumb a{color:var(--gold-d);text-decoration:none}

/* Hero */
.hero{background:linear-gradient(180deg,#FAFBFF 0%,#EEF4FF 100%);padding:clamp(1.8rem,4.5vw,3.2rem) 0}
.hero h1{margin-bottom:1rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;align-items:center}
.hero-grid img{width:100%;height:auto;max-width:300px;margin:0 auto;filter:drop-shadow(0 16px 40px rgba(30,99,214,.18)) drop-shadow(0 4px 14px rgba(212,175,55,.25))}
.kicker{color:var(--gold-d);font-weight:700;text-transform:uppercase;letter-spacing:.2em;font-size:.72rem;margin-bottom:.6rem}
.lead{font-size:clamp(1rem,1.7vw,1.2rem);color:var(--navy2);font-weight:400;max-width:48ch}

/* Sections */
section.blk{padding:clamp(2rem,4.5vw,3.4rem) 0;border-bottom:1px solid #EEF0F6}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-top:1.4rem}
.cards--2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:1rem;padding:1.3rem;box-shadow:0 2px 14px rgba(26,37,64,.05)}
.card h3{color:var(--navy)}
.card p{font-size:.92rem;margin-bottom:0}

/* Collection grid (tiles cuadrados uniformes) */
.col-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.7rem;margin-top:1.4rem}
.col-grid figure{text-align:center}
.col-grid img{width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;background:linear-gradient(160deg,#fff,#EEF3FB);border:1px solid var(--line);border-radius:.7rem;padding:.5rem}
.col-grid figcaption{font-size:.72rem;color:var(--muted);margin-top:.4rem;text-transform:uppercase;letter-spacing:.04em}

/* Conversion block */
.conv{background:var(--navy);border-radius:1.4rem;padding:clamp(1.6rem,4vw,2.6rem);text-align:center;margin:1.6rem 0;color:#fff}
.conv h2{color:#fff}
.conv .price{font-size:clamp(2rem,5vw,3rem);font-weight:900}
.conv p{color:#B8D4F5}
.pill{display:inline-flex;gap:.5rem;align-items:center;background:rgba(212,175,55,.12);border:1.5px solid rgba(212,175,55,.4);border-radius:9999px;padding:.4rem 1rem;color:var(--gold-l);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1rem}
.trust{display:flex;flex-wrap:wrap;gap:1.2rem;justify-content:center;margin-top:1.2rem;color:#9AB0CE;font-size:.82rem}
.trust span{display:flex;align-items:center;gap:.4rem}
.certs{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.certs span{background:rgba(212,175,55,.1);border:1px solid var(--line);border-radius:9999px;padding:.4rem 1rem;font-size:.8rem;font-weight:700;color:var(--gold-d)}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:.8rem;padding:.1rem 1.1rem;margin-bottom:.7rem}
.faq summary{cursor:pointer;font-weight:700;padding:.95rem 0;list-style:none;color:var(--navy)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--gold-d);font-weight:900}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{color:var(--gold-d)}
.faq p{font-size:.92rem;padding-bottom:.95rem;margin:0;color:var(--muted)}

/* CTA box */
.cta-box{background:var(--navy);border-radius:1.2rem;padding:clamp(1.6rem,4vw,2.4rem);text-align:center;color:#fff;margin:2.2rem auto}
.cta-box p{color:#B8D4F5;margin-bottom:1rem}

/* Prose (blog / artículos) */
.prose{max-width:720px;margin:0 auto}
.prose h2{margin:2rem 0 .8rem}
.prose h3{margin:1.4rem 0 .5rem;color:var(--navy)}
.prose p{font-size:1.02rem;line-height:1.75}
.prose ul,.prose ol{margin:0 0 1.1rem 1.3rem;color:var(--muted)}
.prose li{margin-bottom:.4rem;line-height:1.7}
.prose blockquote{border-left:3px solid var(--gold);background:#fff;padding:1rem 1.2rem;margin:1.2rem 0;border-radius:0 .6rem .6rem 0;font-style:italic;color:var(--navy2)}
.prose a{color:var(--gold-d);font-weight:600}
.article-meta{color:#8A9BB5;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1.2rem}
.article-lead{font-size:clamp(1.05rem,1.8vw,1.25rem);color:var(--navy2);line-height:1.6;margin-bottom:1.5rem}

/* Intro block */
.intro{padding:1.4rem 0 .4rem}
.intro p{color:var(--muted);font-size:1.05rem;max-width:60ch}

/* Footer */
footer{background:var(--navy);color:#B8D4F5;padding:clamp(2.5rem,5vw,4rem) 0 2rem;border-top:2px solid var(--gold);margin-top:2rem}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;margin-bottom:2rem;max-width:1080px;margin-left:auto;margin-right:auto;padding:0 clamp(1.1rem,4vw,2rem)}
footer h4{color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:.9rem}
footer a{color:#B8D4F5;text-decoration:none;font-size:.85rem;display:block;margin-bottom:.4rem;transition:color .2s}
footer a:hover{color:var(--gold)}
.fdisc{color:#3A5070;font-size:.68rem;line-height:1.6;margin-top:.8rem}
.fbrand{color:var(--gold);font-weight:900;text-transform:uppercase;letter-spacing:.05em;font-size:1rem}
.fbase{border-top:1px solid rgba(255,255,255,.08);padding-top:1.2rem;color:#3A5070;font-size:.72rem}

@media(max-width:760px){
  .nav{display:none}
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .lead,.hero p.lead{margin:0 auto}
  .cards,.cards--2{grid-template-columns:1fr}
  .col-grid{grid-template-columns:repeat(3,1fr)}
  .fgrid{grid-template-columns:1fr;gap:1.6rem}
}