/* ================= BASE ================= */
* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top, rgba(220, 38, 38, 0.22), transparent 34%),
    linear-gradient(180deg, #8b0000 0%, #650000 45%, #4a0000 100%);
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: #fff;
  text-decoration: none;
}

/* ================= HEADER ================= */
header {
  height: 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 18px;
  background: #a40000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.title-header {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
}

.prelogo {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.logodef,
.logo2 {
  display: block;
}

.logo2 {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ================= MAIN COMPACTO ================= */
.main-frame {
  width: 92%;
  max-width: 960px;
  margin: 24px auto 16px;
  flex: 1;
}

.centerfull {
  width: 100%;
  text-align: center;
}

/* ================= PLAYER ================= */
.subiframe {
  width: 100%;
  margin: 0 auto;
  padding: 6px;
  background: rgba(90, 0, 0, 0.62);
  border: 1px solid #ef4444;
  border-radius: 12px;
}

.preframe {
  width: 100%;
  overflow: hidden;
  border-radius: 9px;
  background: #000;
}

#embedIframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}

/* ================= BOTÓN ================= */
#btnIframe {
  width: 100%;
  margin: 8px 0 2px;
  padding: 9px 12px;
  background: #e52525;
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

#btnIframe:hover {
  background: #ff3434;
}

/* ================= FOOTER ================= */
footer {
  width: 100%;
  background: #a40000;
  color: #fff;
  text-align: center;
  padding: 14px 10px;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.footer-title {
  display: block;
  font-size: 14px;
  font-weight: 800;
}

.redes {
  display: flex;
  justify-content: center;
  gap: 18px;
  padding: 0;
  margin: 7px 0 0;
}

.redes > li {
  list-style: none;
}

.red-item {
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  opacity: 0.92;
}

.red-item:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  header {
    height: 48px;
    padding: 7px 12px;
  }

  .title-header {
    font-size: 1.25rem;
  }

  .prelogo {
    width: 34px;
    height: 34px;
  }

  .main-frame {
    width: 96%;
    max-width: 100%;
    margin-top: 16px;
  }

  .subiframe {
    padding: 4px;
    border-radius: 10px;
  }

  #btnIframe {
    padding: 8px 10px;
    font-size: 13.5px;
  }

  footer {
    padding: 12px 10px;
  }
}