:root{
  --bg:#0a0a0a; --bg2:#101010; --card:#151515;
  --line:#262626; --txt:#f5f5f5; --muted:#b0b0b0; --dim:#8a8a8a;
  --grad:linear-gradient(90deg,#a78bfa,#22d3ee);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.eyebrow{font-size:13px;letter-spacing:.18em;font-weight:600;color:var(--dim);}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.btn{
  display:inline-block;background:var(--grad);color:#0a0a0a;
  font-weight:700;font-size:15px;padding:14px 28px;border-radius:999px;
  transition:opacity .2s ease;
}
.btn:hover{opacity:.88;}
.btn-ghost{
  display:inline-block;border:1px solid var(--line);color:var(--txt);
  font-weight:600;font-size:15px;padding:13px 27px;border-radius:999px;
  transition:border-color .2s ease;
}
.btn-ghost:hover{border-color:#4b3f7a;}

/* NAV */
header.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,10,10,.8);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:68px;}
.logo{font-weight:800;font-size:19px;letter-spacing:-.01em;}
.nav__links{display:flex;gap:30px;align-items:center;}
.nav__links a{color:var(--muted);font-size:15px;transition:color .2s;}
.nav__links a:hover{color:var(--txt);}
@media(max-width:820px){.nav__links a:not(.btn){display:none;}}

/* HERO */
.hero{padding:96px 0 72px;text-align:center;}
.hero h1{font-size:clamp(38px,6.5vw,72px);line-height:1.03;font-weight:800;letter-spacing:-.03em;margin:22px auto 24px;max-width:900px;}
.hero p.lead{font-size:19px;color:var(--muted);max-width:620px;margin:0 auto 36px;}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.stats{display:flex;gap:56px;justify-content:center;flex-wrap:wrap;margin-top:72px;}
.stat b{display:block;font-size:40px;font-weight:800;letter-spacing:-.02em;}
.stat span{color:var(--dim);font-size:14px;}

/* SOCIAL STRIP */
.social{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0;text-align:center;}
.social .eyebrow{margin-bottom:18px;}
.social__links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.social__links a{border:1px solid var(--line);border-radius:999px;padding:9px 20px;font-size:14px;color:var(--muted);transition:border-color .2s,color .2s;}
.social__links a:hover{border-color:#4b3f7a;color:var(--txt);}

/* SECTION SHELL */
section.block{padding:96px 0;}
section.block.alt{background:var(--bg2);}
.head{max-width:720px;margin-bottom:56px;}
.head h2{font-size:clamp(30px,4.5vw,48px);line-height:1.06;font-weight:800;letter-spacing:-.02em;margin:14px 0 0;}
.head .sub{color:var(--muted);font-size:18px;margin-top:18px;}

/* GRID CARDS */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;}
.card{
  background:linear-gradient(180deg,var(--card),var(--bg2));
  border:1px solid var(--line);border-radius:20px;padding:34px 30px;
  display:flex;flex-direction:column;transition:border-color .25s,transform .25s;
}
.card:hover{border-color:#4b3f7a;transform:translateY(-4px);}
.card .kicker{font-size:12px;letter-spacing:.14em;font-weight:600;color:var(--dim);text-transform:uppercase;margin-bottom:16px;}
.card h3{font-size:22px;font-weight:700;margin-bottom:12px;letter-spacing:-.01em;}
.card p{font-size:15.5px;color:var(--muted);flex:1;}
.card .link{margin-top:22px;font-weight:700;font-size:15px;align-self:flex-start;}
.card.feature{grid-column:1/-1;background:linear-gradient(120deg,#17132a,#101010);border-color:#3a2f66;}

/* PROCESO */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;}
.step .kicker{color:#a78bfa;}
/* POR QUE */
.why{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;}
.why .card h3{font-size:19px;}

/* DEMOS */
.demo .kicker{color:var(--dim);}
.demo .btn{margin-top:26px;align-self:flex-start;}
.demo-note{margin-top:44px;color:var(--muted);font-size:16px;}
.demo-note a{font-weight:700;}

/* SEGURIDAD */
.sec .kicker{color:#22d3ee;}

/* FAQ */
.faq{max-width:820px;}
details.q{border-bottom:1px solid var(--line);padding:22px 0;cursor:pointer;}
details.q summary{font-size:18px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;}
details.q summary::-webkit-details-marker{display:none;}
details.q summary::after{content:"+";color:var(--dim);font-weight:400;font-size:24px;line-height:1;}
details.q[open] summary::after{content:"–";}
details.q p{color:var(--muted);margin-top:14px;font-size:16px;}

/* CTA */
.cta{text-align:center;padding:110px 0;border-top:1px solid var(--line);}
.cta h2{font-size:clamp(32px,5vw,54px);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin-bottom:20px;}
.cta p{color:var(--muted);font-size:18px;max-width:560px;margin:0 auto 34px;}
.cta__btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:64px 0 40px;}
.foot__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;}
.foot__grid h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);margin-bottom:16px;}
.foot__grid a,.foot__grid p{display:block;color:var(--muted);font-size:15px;margin-bottom:10px;transition:color .2s;}
.foot__grid a:hover{color:var(--txt);}
.foot__brand .logo{margin-bottom:14px;}
.foot__brand p{max-width:280px;}

/* TFH S.R.L. SEAL */
.tfh-seal{
  display:inline-flex;
  align-items:center;
  gap:12px;
  margin-top:20px;
  padding:10px 16px;
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(167,139,250,0.22);
  border-radius:12px;
  backdrop-filter:blur(8px);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.tfh-seal:hover{
  border-color:rgba(34,211,238,0.45);
  box-shadow:0 0 20px rgba(167,139,250,0.12);
  transform:translateY(-2px);
}
.tfh-seal__icon{
  width:36px;
  height:36px;
  border-radius:50%;
  background:linear-gradient(135deg,rgba(167,139,250,0.15),rgba(34,211,238,0.15));
  border:1px solid rgba(167,139,250,0.3);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#a78bfa;
  flex-shrink:0;
}
.tfh-seal__content{display:flex;flex-direction:column;}
.tfh-seal__tag{font-size:10px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--dim);line-height:1.2;}
.tfh-seal__company{font-size:14px;font-weight:800;letter-spacing:-.01em;color:var(--txt);line-height:1.3;}
.tfh-seal__company span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.tfh-seal__note{font-size:11px;color:var(--muted);line-height:1.2;}

.foot__bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);color:var(--dim);font-size:13px;}
@media(max-width:820px){.foot__grid{grid-template-columns:1fr 1fr;}.stats{gap:36px;}}
@media(max-width:520px){.foot__grid{grid-template-columns:1fr;}}