/* correo24.es — moderno, oscuro */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#0a0e16; --bg2:#0f1523; --card:#141c2b; --line:#233046;
  --tx:#e8edf7; --mut:#8a99b3;
  --a:#3ddc97; --b:#4aa8ff;
}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--tx);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:720px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(34px,5.2vw,58px);font-weight:800}
h2{font-size:clamp(26px,3.4vw,38px);font-weight:750}
h3{font-size:19px;font-weight:700}
p{margin:0 0 1em}
a{color:inherit}
.muted{color:var(--mut);font-size:14px}
.grad{background:linear-gradient(100deg,var(--a),var(--b));-webkit-background-clip:text;background-clip:text;color:transparent}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(10,14,22,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;text-decoration:none;letter-spacing:-.02em}
.logo b{color:var(--a)}
.logo-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(140deg,var(--a),var(--b));color:#06101a;font-weight:800}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:15px}
.nav-links a{color:var(--mut);text-decoration:none}
.nav-links a:hover{color:var(--tx)}

/* buttons */
.btn{display:inline-block;border:0;cursor:pointer;text-decoration:none;font-weight:650;
  background:linear-gradient(135deg,var(--a),var(--b));color:#05121c;border-radius:11px;
  padding:13px 22px;font-size:15px;font-family:inherit;transition:transform .12s ease,filter .12s ease}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-block{display:block;width:100%;text-align:center}

.pill{display:inline-block;font-size:13px;color:var(--a);border:1px solid rgba(61,220,151,.32);
  background:rgba(61,220,151,.08);padding:5px 13px;border-radius:99px;margin-bottom:22px}
.pill-dark{color:var(--b);border-color:rgba(74,168,255,.3);background:rgba(74,168,255,.08);margin:0}

/* hero */
.hero{padding:86px 0 70px;background:
  radial-gradient(800px 420px at 12% -8%,rgba(61,220,151,.14),transparent 60%),
  radial-gradient(700px 420px at 88% 8%,rgba(74,168,255,.14),transparent 62%)}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.lead{font-size:18px;color:#c3cede;max-width:52ch}
.hero-cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:26px 0 22px}
.ticks{list-style:none;padding:0;margin:0;display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--mut)}
.ticks li::before{content:"✓";color:var(--a);font-weight:800;margin-right:7px}

/* mock inbox */
.inbox{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:0 30px 70px rgba(0,0,0,.45)}
.inbox-bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid var(--line);background:#111828}
.inbox-bar span{width:10px;height:10px;border-radius:50%;background:#2b3a52}
.inbox-bar em{margin-left:12px;font-style:normal;font-size:13px;color:var(--mut)}
.row{display:flex;align-items:center;gap:13px;padding:13px 16px;border-bottom:1px solid rgba(35,48,70,.6)}
.row i{font-style:normal;color:var(--a);font-size:13px}
.row b{display:block;font-size:14px}
.row small{color:var(--mut);font-size:13px}
.row time{margin-left:auto;font-size:12px;color:var(--mut)}
.row-mute{opacity:.42}
.row-mute b{font-weight:500}
.divider{padding:9px 16px;background:#0e1524;font-size:12px;color:var(--mut);border-bottom:1px solid var(--line)}

/* strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip-in{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:34px 24px;text-align:center}
.strip b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em}
.strip span{font-size:14px;color:var(--mut)}

/* sections */
.sec{padding:84px 0}
.sec-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-lead{color:var(--mut);max-width:60ch;margin-bottom:40px;font-size:17px}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.steps article{border-left:2px solid var(--line);padding-left:20px}
.num{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:rgba(74,168,255,.12);
  color:var(--b);font-weight:800;font-size:14px;margin-bottom:14px}
.steps p{color:var(--mut);font-size:15px;margin:0}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px}
.card p{color:var(--mut);font-size:15px;margin:0}
.ico{font-size:24px;margin-bottom:12px}

/* plan */
.plan{max-width:560px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px;
  box-shadow:0 24px 60px rgba(0,0,0,.35)}
.plan-head{text-align:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
.price{margin:16px 0 6px}
.price b{font-size:52px;font-weight:800;letter-spacing:-.03em}
.price span{color:var(--mut);margin-left:8px}
.plan-after{font-size:13px;color:var(--mut);margin:0}
.plan-list{list-style:none;padding:0;margin:24px 0 28px;display:grid;gap:11px;font-size:15px}
.plan-list li::before{content:"✓";color:var(--a);font-weight:800;margin-right:10px}

/* form */
.form{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px;display:grid;gap:18px}
.form label{display:grid;gap:7px;font-size:14px;color:var(--mut)}
.form input[type=text],.form input[type=email],.form input[type=password]{
  width:100%;background:#0c1220;border:1px solid var(--line);color:var(--tx);border-radius:10px;
  padding:13px 14px;font:inherit;font-size:15px}
.form input:focus{outline:2px solid rgba(74,168,255,.45);outline-offset:1px;border-color:transparent}
.addr{display:flex;align-items:center;gap:10px}
.addr input{flex:1}
.addr em{font-style:normal;color:var(--mut);font-size:15px;white-space:nowrap}
.check{display:flex!important;align-items:flex-start;gap:10px;font-size:13px}
.check input{margin-top:3px}
.form-note{font-size:12px;color:var(--mut);text-align:center;margin:0}
.alert{background:rgba(255,86,86,.08);border:1px solid rgba(255,86,86,.35);color:#ffc0c0;
  border-radius:12px;padding:16px 18px;margin-bottom:22px;font-size:15px}
.alert b{display:block;color:#ff8f8f;margin-bottom:3px}

/* faq */
details{border-bottom:1px solid var(--line);padding:16px 0}
summary{cursor:pointer;font-weight:650;font-size:16px;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";color:var(--a);font-weight:800;margin-right:11px}
details[open] summary::before{content:"–"}
details p{color:var(--mut);font-size:15px;margin:11px 0 0 24px}

.foot{border-top:1px solid var(--line);padding:30px 0;font-size:13px;color:var(--mut)}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media(max-width:900px){
  .hero-in{grid-template-columns:1fr;gap:40px}
  .steps,.cards,.strip-in{grid-template-columns:1fr}
  .nav-links{display:none}
}