/* Estilos compartidos de las landings de DH1 — mismos tokens que index.html */
:root{
  --dh-blue:#1e4fa3;--dh-blue-deep:#0f3272;--dh-blue-bright:#2e6cd6;
  --dh-gold:#e8a324;--dh-gold-bright:#f5b83a;
  --dh-ink:#0a0e1a;--dh-ink-soft:#141a2e;--dh-paper:#f7f6f1;
  --dh-line:rgba(255,255,255,0.08);--dh-line-strong:rgba(255,255,255,0.18);
  --dh-text-dim:rgba(255,255,255,0.66);
  --grad-core:linear-gradient(135deg,#2e6cd6 0%,#1e4fa3 45%,#e8a324 100%);
  --grad-warm:linear-gradient(135deg,#f5b83a 0%,#e8a324 60%,#c48715 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--dh-ink);color:#fff;overflow-x:hidden;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}

/* Nav */
.l-nav{position:sticky;top:0;z-index:50;padding:12px clamp(16px,4vw,40px);display:flex;align-items:center;justify-content:space-between;gap:16px;backdrop-filter:blur(14px);background:rgba(10,14,26,0.82);border-bottom:1px solid var(--dh-line)}
.l-brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.l-brand img{width:38px;height:38px;border-radius:9px}
.l-brand span{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:20px;letter-spacing:-0.03em}
.l-brand span b{color:var(--dh-gold);font-weight:800}
.l-nav-links{display:flex;align-items:center;gap:22px}
.l-nav-links a{color:var(--dh-text-dim);text-decoration:none;font-size:14px;font-weight:500}
.l-nav-links a:hover{color:#fff}
.l-nav-links .cta{padding:9px 18px;background:#fff;color:var(--dh-ink);border-radius:999px;font-weight:600;font-size:13px}
.l-nav-links .cta:hover{color:var(--dh-ink)}
@media(max-width:720px){.l-nav-links a:not(.cta){display:none}}

/* Breadcrumb */
.crumbs{max-width:calc(1100px + 2 * clamp(16px,4vw,40px));margin:0 auto;padding:22px clamp(16px,4vw,40px) 0;font-size:13px;color:var(--dh-text-dim)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:#fff}

/* Hero */
.l-hero{position:relative;padding:clamp(40px,7vw,80px) clamp(16px,4vw,40px) clamp(56px,8vw,96px);overflow:hidden}
.l-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 700px 500px at 10% 0%,rgba(46,108,214,0.32),transparent 60%),radial-gradient(ellipse 600px 420px at 100% 100%,rgba(232,163,36,0.18),transparent 60%);z-index:0}
.l-hero > *{position:relative;z-index:1}
.l-wrap{max-width:1100px;margin:0 auto}
.tag{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--dh-gold);letter-spacing:0.15em;text-transform:uppercase;margin-bottom:18px}
.l-hero h1{font-family:'Bricolage Grotesque',sans-serif;font-size:clamp(36px,5.6vw,66px);font-weight:800;letter-spacing:-0.035em;line-height:1;max-width:900px;margin-bottom:22px}
.l-hero h1 em{font-style:italic;font-weight:700;background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,1.7vw,19px);color:var(--dh-text-dim);max-width:720px;margin-bottom:34px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;background:var(--grad-core);color:#fff;border-radius:12px;font-weight:600;font-size:15px;text-decoration:none;box-shadow:0 10px 30px rgba(46,108,214,0.35);transition:transform .2s}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;background:rgba(255,255,255,0.05);color:#fff;border:1px solid var(--dh-line-strong);border-radius:12px;font-weight:600;font-size:15px;text-decoration:none}
.btn-ghost:hover{background:rgba(255,255,255,0.1)}

/* Sections */
.l-sec{padding:clamp(56px,8vw,96px) clamp(16px,4vw,40px)}
.l-sec.alt{background:var(--dh-ink-soft);border-top:1px solid var(--dh-line);border-bottom:1px solid var(--dh-line)}
.l-sec.paper{background:var(--dh-paper);color:var(--dh-ink)}
.l-sec h2{font-family:'Bricolage Grotesque',sans-serif;font-size:clamp(28px,4vw,44px);font-weight:700;letter-spacing:-0.03em;line-height:1.08;margin-bottom:16px;max-width:820px}
.l-sec h2 em{font-style:italic;font-weight:500;background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;color:transparent}
.l-sec .intro{color:var(--dh-text-dim);max-width:720px;font-size:16.5px;margin-bottom:40px}
.l-sec.paper .intro{color:#505870}
.l-sec.paper .tag{color:var(--dh-blue)}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.cards{grid-template-columns:1fr}}
.card{background:rgba(255,255,255,0.025);border:1px solid var(--dh-line);border-radius:18px;padding:28px 24px;transition:border-color .3s,transform .3s}
.card:hover{border-color:var(--dh-line-strong);transform:translateY(-3px)}
.card .ic{width:44px;height:44px;border-radius:12px;background:rgba(46,108,214,0.15);border:1px solid rgba(46,108,214,0.35);display:grid;place-items:center;font-size:20px;margin-bottom:18px}
.card.gold .ic{background:rgba(232,163,36,0.15);border-color:rgba(232,163,36,0.35)}
.card h3{font-family:'Bricolage Grotesque',sans-serif;font-size:20px;font-weight:700;letter-spacing:-0.02em;margin-bottom:8px}
.card p{color:var(--dh-text-dim);font-size:14.5px;line-height:1.6}

/* Problem / solution two-column */
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:760px){.split{grid-template-columns:1fr}}
.panel{border-radius:18px;padding:28px 26px;background:#fff;border:1px solid rgba(10,14,26,0.07)}
.panel h3{font-family:'Bricolage Grotesque',sans-serif;font-size:20px;font-weight:700;margin-bottom:14px;letter-spacing:-0.02em}
.panel ul{list-style:none;display:grid;gap:10px}
.panel li{position:relative;padding-left:26px;color:#3c4458;font-size:15px}
.panel.before li::before{content:'✕';position:absolute;left:0;color:#c0453a;font-weight:700}
.panel.after li::before{content:'✓';position:absolute;left:0;color:var(--dh-blue);font-weight:700}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{padding:26px 22px;border-radius:18px;border:1px solid var(--dh-line);background:rgba(255,255,255,0.02)}
.step::before{counter-increment:s;content:'0' counter(s);display:block;font-family:'Bricolage Grotesque',sans-serif;font-size:48px;font-weight:800;letter-spacing:-0.05em;line-height:1;background:var(--grad-core);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
.step h3{font-family:'Bricolage Grotesque',sans-serif;font-size:18px;font-weight:700;margin-bottom:6px}
.step p{color:var(--dh-text-dim);font-size:14px}

/* FAQ */
.faq{max-width:820px;display:grid;gap:12px}
.faq details{border:1px solid var(--dh-line);border-radius:14px;background:rgba(255,255,255,0.02);padding:4px 22px}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:16px;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--dh-gold);font-size:22px;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:'−'}
.faq details p{color:var(--dh-text-dim);padding:0 0 18px;font-size:15px}

/* Related */
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:820px}
@media(max-width:600px){.related{grid-template-columns:1fr}}
.related a{display:block;padding:20px 22px;border-radius:14px;border:1px solid var(--dh-line);text-decoration:none;transition:border-color .2s}
.related a:hover{border-color:rgba(232,163,36,0.5)}
.related small{display:block;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--dh-gold);letter-spacing:.1em;margin-bottom:6px}
.related strong{font-family:'Bricolage Grotesque',sans-serif;font-size:18px}

/* CTA */
.l-cta{padding:clamp(80px,11vw,130px) 20px;text-align:center;position:relative;overflow:hidden}
.l-cta::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(46,108,214,0.28),transparent 60%),radial-gradient(ellipse at 30% 100%,rgba(232,163,36,0.18),transparent 60%)}
.l-cta > *{position:relative;z-index:1}
.l-cta h2{font-family:'Bricolage Grotesque',sans-serif;font-size:clamp(32px,5.5vw,60px);font-weight:800;letter-spacing:-0.04em;line-height:1;max-width:820px;margin:0 auto 18px}
.l-cta h2 em{font-style:italic;font-weight:600;background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;color:transparent}
.l-cta p{color:var(--dh-text-dim);max-width:560px;margin:0 auto 30px;font-size:17px}
.l-cta .btns{justify-content:center}

/* Footer */
.l-foot{padding:36px clamp(16px,4vw,40px);background:var(--dh-ink-soft);border-top:1px solid var(--dh-line);color:var(--dh-text-dim);font-size:14px}
.l-foot .row{max-width:1100px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px}
.l-foot nav{display:flex;flex-wrap:wrap;gap:8px 20px}
.l-foot a{text-decoration:none}
.l-foot a:hover{color:#fff}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}