:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --accent:#dbeafe;
  --link:var(--primary-dark);
  --ink-900:#0f172a;
  --ink-800:#1e293b;
  --ink-700:#334155;
  --ink-600:#475569;
  --ink-500:#64748b;
  --ink-400:#94a3b8;
  --ink-300:#cbd5e1;
  --ink-200:#e2e8f0;
  --ink-100:#f1f5f9;
  --ink-50:#f8fafc;
  --radius:16px;
  --radius-lg:28px;
  --radius-xl:36px;
  --page-bg:#fafbfe;
  --surface:#fff;
  --surface-soft:#f3f3f3;
  --header-bg:rgba(255,255,255,.9);
  --shadow-tint:37,99,235;
}
html[data-theme="dark"]{
  --primary:#3b82f6;
  --primary-dark:#2563eb;
  --accent:rgba(37,99,235,.2);
  --link:#93c5fd;
  --ink-900:#f1f5f9;
  --ink-800:#e2e8f0;
  --ink-700:#cbd5e1;
  --ink-600:#94a3b8;
  --ink-500:#94a3b8;
  --ink-400:#64748b;
  --ink-300:#475569;
  --ink-200:#1e293b;
  --ink-100:#1e293b;
  --ink-50:#0f1a30;
  --page-bg:#0b1220;
  --surface:#101c33;
  --surface-soft:#14213a;
  --header-bg:rgba(11,18,32,.85);
  --shadow-tint:0,0,0;
}

body{font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;background:var(--page-bg)}
h1,h2,h3,.section-title{font-family:'Inter',system-ui,sans-serif}
.header{background:var(--header-bg);border-color:var(--ink-200)}
.nav{padding:14px 0}
.nav-menu a{color:var(--ink-600)}
.btn{border-radius:999px}
.btn-primary{background:var(--primary-dark);box-shadow:0 8px 16px rgba(30,64,175,.25)}
.theme-toggle{border-radius:50%}

section{padding:96px 0}
.page-hero{position:relative;overflow:hidden;padding:56px 0 88px}
.page-hero #netbg{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;display:block}
.page-hero>.container{position:relative;z-index:1}
.page-hero .hero-card{display:block;padding:64px;background:var(--page-bg);border-radius:var(--radius-xl);box-shadow:0 24px 48px rgba(37,99,235,.2)}
.page-hero .hero-copy{max-width:820px;text-align:left}
.page-hero h1{font-size:clamp(36px,5vw,56px);font-weight:900;line-height:1.06;letter-spacing:-.035em;color:var(--ink-900)}
.page-hero .lead{max-width:720px;font-size:18px;color:var(--ink-600)}
.breadcrumb{margin-bottom:20px;color:var(--ink-500);font-family:'Inter',sans-serif;font-size:13px}
.breadcrumb a{color:var(--link)}
.badge,.section-badge{display:inline-flex;align-items:center;padding:6px 12px;border-radius:10px;background:var(--primary);color:#fff;font-family:'Inter',sans-serif;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.badge{gap:8px;margin-bottom:20px}
.badge svg{width:15px;height:15px}
.section-header{max-width:820px;margin:0 auto 48px;text-align:center}
.section-title{margin-top:12px;font-size:clamp(30px,4vw,42px);font-weight:900;line-height:1.12;letter-spacing:-.025em;color:var(--ink-900)}
.section-desc{max-width:720px;margin:12px auto 0;color:var(--ink-600);font-size:16px}

.features{background:var(--surface-soft);border-top:1px solid var(--ink-200);border-bottom:1px solid var(--ink-200)}
.card,.check-item,.faq-item{background:var(--surface);border:1px solid var(--ink-200);box-shadow:0 18px 38px rgba(37,99,235,.12)}
.card{border-radius:var(--radius-lg);padding:30px}
.card:hover{box-shadow:0 24px 48px rgba(37,99,235,.18)}
.problem-card{overflow:hidden;border-top:3px solid var(--primary)}
.problem-card .problem-num{color:var(--ink-200)}
.check-grid{gap:20px}
.check-item{border-radius:18px;padding:22px 24px}
.check-item .dot{border-radius:999px;background:var(--primary)}
.faq{gap:18px}
.faq-item{border-radius:18px;padding:26px 28px}
.faq-item h3{font-size:17px;color:var(--ink-900)}
.tag{background:var(--accent);color:var(--link);font-family:'Inter',sans-serif;border-radius:999px}
.related-card{min-height:150px;justify-content:space-between}

.process{padding:96px 0}
.timeline{grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.timeline::before{content:'';position:absolute;top:20px;left:5%;right:5%;height:2px;background:var(--ink-200)}
.t-step{position:relative;padding-top:0;border-top:0;text-align:center}
.t-num{position:relative;display:grid;place-items:center;width:42px;height:42px;margin:0 auto 14px;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:800}
.t-step h3{font-size:18px;color:var(--ink-900)}

.cta-band{padding:52px;border-radius:var(--radius-lg);background:linear-gradient(150deg,var(--primary) 0%,var(--primary-dark) 100%);box-shadow:0 24px 48px rgba(37,99,235,.2)}
.cta-band h2{font-size:clamp(28px,4vw,40px);font-weight:900;letter-spacing:-.025em}
.cta-band .btn-primary{background:#fff;color:var(--primary-dark)}
.footer{padding:0;background:#0f172a}
.footer .row{padding:28px 0;border-top:1px solid rgba(255,255,255,.14)}

@media (max-width:900px){
  section{padding:80px 0}
  .page-hero{padding:40px 0 72px}
  .page-hero .hero-card{padding:44px 32px}
  .timeline{grid-template-columns:1fr 1fr}
  .timeline::before{display:none}
}
@media (max-width:520px){
  section{padding:68px 0}
  .page-hero .hero-card{padding:34px 22px}
  .page-hero h1{font-size:34px}
  .timeline{grid-template-columns:1fr}
  .cta-band{padding:38px 22px}
}


/* Capacidades principales: composición editorial del home */
.features{background:#0f172a;color:#fff;padding:104px 0;border:0}
.features .section-header{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);column-gap:64px;align-items:end;max-width:none;margin:0 0 48px;text-align:left}
.features .section-header .section-badge{grid-column:1/-1;justify-self:start;background:#2563eb;color:#fff}
.features .section-header .section-title{color:#fff}
.features .section-header .section-desc{margin:0;color:#aeb8cb}
.features .grid-3{display:block;border-top:1px solid rgba(255,255,255,.2)}
.features .problem-card{display:grid;grid-template-columns:72px minmax(0,1.15fr) minmax(220px,.65fr);grid-template-rows:auto auto;column-gap:28px;align-items:start;min-height:0;padding:30px 16px;border:0;border-bottom:1px solid rgba(255,255,255,.16);border-radius:0;background:transparent;box-shadow:none;transition:background-color .18s ease}
.features .problem-card:hover{background:rgba(255,255,255,.035);box-shadow:none}
.features .problem-card .problem-num{grid-column:1;grid-row:1/span 2;font-size:30px;font-weight:800;line-height:1;color:#60a5fa}
.features .problem-card h3{grid-column:2;grid-row:1;margin:0 0 8px;font-size:22px;color:#fff}
.features .problem-card .muted{grid-column:2;grid-row:2;max-width:58ch;font-size:14.5px;color:#aeb8cb}
@media(max-width:900px){
  .features .section-header{grid-template-columns:1fr;gap:12px}
  .features .problem-card{grid-template-columns:54px 1fr;column-gap:18px;padding-left:0;padding-right:0}
  .features .problem-card .problem-num{grid-column:1;grid-row:1/span 2;font-size:24px}
  .features .problem-card h3{grid-column:2;grid-row:1}
  .features .problem-card .muted{grid-column:2;grid-row:2}
}
@media(max-width:520px){.features{padding:80px 0}.features .problem-card{padding-top:24px;padding-bottom:24px}}


/* FAQ: contraste claro frente al bloque oscuro de capacidades */
.features.faq-section{background:var(--page-bg);color:var(--ink-900);border:0}
.features.faq-section .section-header{display:block;max-width:820px;margin:0 auto 48px;text-align:center}
.features.faq-section .section-header .section-badge{display:inline-flex;background:var(--accent);color:var(--link)}
.features.faq-section .section-header .section-title{color:var(--ink-900)}
.features.faq-section .faq{max-width:900px;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.features.faq-section .faq-item{position:relative;padding:28px 30px;border:1px solid var(--ink-200);border-radius:20px;background:var(--surface);box-shadow:0 16px 34px rgba(37,99,235,.1)}
.features.faq-section .faq-item::before{content:"";position:absolute;top:0;left:28px;width:42px;height:3px;border-radius:999px;background:var(--primary)}
.features.faq-section .faq-item h3{font-size:17px;line-height:1.4;color:var(--ink-900)}
.features.faq-section .faq-item .muted{color:var(--ink-600)}
@media(max-width:700px){.features.faq-section .faq{grid-template-columns:1fr}}


/* FAQ editorial alineado */
.features.faq-section .section-header{display:block;max-width:none;margin:0 0 44px;text-align:left}
.features.faq-section .section-header .section-badge{justify-self:auto}
.features.faq-section .section-header .section-title{max-width:760px;margin-top:14px}
.features.faq-section .faq{display:block;max-width:none;border-top:1px solid var(--ink-300)}
.features.faq-section .faq-item{display:grid;grid-template-columns:minmax(260px,.85fr) minmax(0,1.15fr);gap:56px;align-items:start;padding:30px 16px;border:0;border-bottom:1px solid var(--ink-200);border-radius:0;background:transparent;box-shadow:none}
.features.faq-section .faq-item::before{display:none}
.features.faq-section .faq-item:hover{background:var(--surface)}
.features.faq-section .faq-item h3{margin:0;font-size:17px;font-weight:750;line-height:1.45;letter-spacing:-.01em}
.features.faq-section .faq-item .muted{margin:0;font-size:15px;line-height:1.75}
@media(max-width:700px){
  .features.faq-section .section-header{margin-bottom:32px}
  .features.faq-section .faq-item{grid-template-columns:1fr;gap:10px;padding:24px 0}
}