/* Contenedor central para centrar botones y logo */
.central-container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  margin-top: 1.5rem;
}

.botones-box {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

body {
  background:
    linear-gradient(rgba(80,0,120,0.7), rgba(80,0,120,0.7)),
    url('images/UPV.webp') center center/cover no-repeat;
  color: white;
  font-family: T, Helvetica, sans-serif;
  min-height: 100vh;
  margin: 0;
  gap: 0.5rem;
}

.main-container {
  min-height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  /* El fondo sigue siendo del body, así que el div es transparente */
  background: transparent;
}

/* Estilos para los botones llamativos */
button#boton {
  font-size: 2rem;
  padding: 1.1rem 0;
  margin: 0;
  border: none;
  border-radius: 1.5rem;
  background: linear-gradient(90deg, #360953, #a259c6 80%);
  color: white;
  box-shadow: 0 4px 18px rgba(80,0,120,0.25);
  font-family: 'Segoe UI', Arial, sans-serif;
  font-weight: 600;
  letter-spacing: 1px;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
  width: 320px;
  min-width: 220px;
  max-width: 400px;
  text-align: center;
  display: block;
}
button#boton:hover {
  transform: scale(1.07);
  box-shadow: 0 8px 24px rgba(80,0,120,0.35);
  background: linear-gradient(90deg, #661992, #a259c6 80%);
}

.header-box {
  background: rgba(40, 0, 60, 0.55);
  border-radius: 1.5rem;
  box-shadow: 0 6px 32px rgba(80,0,120,0.18);
  padding: 2.2rem 2.5rem 1.5rem 2.5rem;
  margin: 2.5rem auto 1.5rem auto;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 2px solid rgba(162,89,198,0.25);
}

#frase {
  display: flex;
  justify-content: center;
  align-items: center;
  height: auto;
  margin: 0.2rem 0;
  text-align: center;
  font-size: 3.2rem;
  font-family: 'Segoe UI', 'Arial Rounded MT Bold', Arial, sans-serif;
  font-weight: 700;
  color: #fff;
  text-shadow: 2px 4px 18px #360953, 0 1px 0 #fff;
  letter-spacing: 2px;
  background: linear-gradient(90deg, #fff 0%, #a259c6 40%, #661992 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2#frase {
  font-size: 2rem;
  font-weight: 500;
  margin: 0.5rem 0 0.5rem 0;
  text-shadow: 1px 2px 10px #360953, 0 1px 0 #fff;
  background: none;
  color: #fff;
  -webkit-text-fill-color: #fff;
}

#logo {
  width: 220px;
  height: auto;
  margin-top: 0;
  margin-bottom: 0;
  border: 3px solid #fff;
  border-radius: 1.5rem;
  box-shadow: 0 4px 24px rgba(80,0,120,0.25);
}