:root{
  --bg:#f7fafc;
  --surface:#ffffff;
  --text:#0f172a;
  --subtext:#334155;
  --primary:#3b82f6;
  --accent:#f7cf3d;
  --border: rgba(2,6,23,.08);
  --radius:16px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 70% -100px, #eaf2ff 0%, rgba(234,242,255,0) 60%),
              linear-gradient(180deg, #ffffff 0%, #f6f9ff 55%, #ffffff 100%);
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

.container{width:min(1180px, 92%); margin-inline:auto}

.header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(6px);
  background: rgba(255,255,255,.9);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; justify-content:flex-start;
  padding:14px 0;
}
.brand{display:flex; align-items:center; gap:.75rem; text-decoration:none}
.brand img{height:34px; width:auto}

.hero{padding: 28px 0 10px}

.card{
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(2,6,23,.06);
}
.frame-wrap{overflow:hidden; border-radius: var(--radius)}
.frame{width:100%; height: 82vh; border:0; display:block}

.referencia {
  text-align:center;
  margin-top: 24px;
  padding: 24px;
  font-size: 0.95rem;
  color: #334155;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px solid rgba(2,6,23,.05);
  box-shadow: 0 2px 6px rgba(0,0,0,.04);
}
.referencia a { color: #3b82f6; text-decoration: none }
.referencia a:hover { text-decoration: underline }

.footer {
  background: #3b82f6;
  color: #fff;
  padding: 24px 0;
  font-size: 0.95rem;
  box-shadow: 0 -6px 14px rgba(0,0,0,0.1);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
.footer img {
  height: 30px;
  width: auto;
}
.footer-center p {
  margin: 0;
  font-weight: 400;
  letter-spacing: 0.2px;
}
.footer a {
  color: #fff;
  font-weight: 500;
  text-decoration: none;
  margin-left: 4px;
}
.footer a:hover {
  text-decoration: underline;
}