:root{
  color-scheme: dark;

  /* Base */
  --bg: #0f0b0b;
  --text: #ffffff;
  --muted: rgba(255,255,255,.72);
  --muted2: rgba(255,255,255,.55);

  /* ÚNICO ACENTO */
  --red: #e11d2e;

  /* UI */
  --border: rgba(255,255,255,.16);
  --panel: rgba(255,255,255,.04);
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:
    radial-gradient(
      900px 500px at 50% 0%,
      rgba(225,29,46,.18),
      transparent 60%
    ),
    #0f0b0b;
  color:#ffffff;
  min-height:100vh;
}
a{color:var(--text);opacity:.9;text-decoration:none}
a:hover{opacity:1;text-decoration:underline}

.wrap{
  min-height:100vh;
  display:flex;
  justify-content:center;
  align-items:center;
  padding:28px;
  max-width:900px;
  margin:0 auto;
}

/* Panel sobrio, sin gradientes */
.card{
  width:100%;
  max-width:520px;
  padding:26px 22px 18px;
  border-radius:0;
  border:1px solid var(--border);
  background: var(--panel);
  box-shadow: 0 12px 40px rgba(0,0,0,.45);
  position:relative;
  overflow:hidden;
}

/* Barra roja simple arriba (humano, directo) */
.card::before{
  content:"";
  position:absolute;
  left:0; top:0; right:0;
  height:3px;
  background: var(--red);
  pointer-events:none;
}

.badge{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  padding:6px 10px;
  border-radius:0;
  border:1px solid rgba(225,29,46,.55);
  background: rgba(225,29,46,.10);
  color: rgba(255,255,255,.92);
  margin-bottom:14px;
  position:relative;
  z-index:1;
}

h1{
  margin:0 0 10px;
  font-size:clamp(30px,5vw,46px);
  letter-spacing:-.02em;
  line-height:1.05;
  position:relative;
  z-index:1;
}

.sub{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.5;
  max-width:55ch;
  position:relative;
  z-index:1;
}
.muted{color:var(--text); opacity:.92}

.form{width:100%; margin-top:6px; position:relative; z-index:1}

input[type="email"]{
  width:100%;
  padding:14px 14px;
  border-radius:0;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.02);
  color:#fff;
  font-size:16px;
  outline:none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
input[type="email"]::placeholder{opacity:.6}

input[type="email"]:focus{
  border-color: rgba(225,29,46,.75);
  box-shadow: 0 0 0 4px rgba(225,29,46,.18);
}

.consent{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin:12px 0 14px;
  font-size:14px;
  color:var(--muted);
}
.consent input{margin-top:3px}

.btn{
  width:100%;
  padding:12px 14px;
  border-radius:0;
  border:1px solid rgba(225,29,46,.65);
  background: var(--red);
  color:#fff;
  font-weight:900;
  font-size:16px;
  cursor:pointer;
  transition: filter .15s ease, transform .15s ease, opacity .15s ease;
}
.btn:hover{
  filter: brightness(1.05);
  transform: translateY(-1px);
}
.btn:active{transform: translateY(0px)}
.btn:disabled{opacity:.6;cursor:not-allowed}

.msg{
  margin-top:12px;
  min-height:22px;
  font-size:14px;
  color: rgba(255,255,255,.88);
}

.fineprint{
  margin:12px 0 0;
  font-size:13px;
  color:var(--muted2);
}

.footer{
  margin-top:18px;
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
  color:var(--muted2);
  font-size:13px;
  position:relative;
  z-index:1;
}

.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}

/* Mobile */
@media (max-width: 420px){
  .card{padding:22px 16px 16px}
}