* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', system-ui, sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(45deg, #dae7f5, #ebf2fa);
  padding: 120px 20px 90px;
  position: relative;
}

.logo-grande {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  max-width: 200px;
  width: 30%;
  min-width: 150px;
}

.logo-grande img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.container {
  width: 100%;
  max-width: 800px;
  /* Aumentado de 700px a 800px */
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  padding: 40px;
  backdrop-filter: blur(8px);
  margin: 100px auto 50px;
  /* Centrado mejorado */
  position: relative;
  z-index: 1;
}

.container h1 {
  color: #2c3e50;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  /* Tamaño aumentado */
  margin-bottom: 1.8em;
  text-align: center;
  line-height: 1.3;
}

#formulario {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 500px;
  margin: 0 auto;
}

#nombre {
  width: 100%;
  padding: 12px 20px;
  border: 2px solid #e0e7ff;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
}

#nombre:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 8px rgba(52, 152, 219, 0.2);
}

button[type="submit"] {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
  padding: 12px 25px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.areas-curriculares {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.icono {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 16px;
  animation: float 6s ease-in-out infinite;
  opacity: 0.9;
  border: 3px solid;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}

/* Posiciones originales */
.icono-ciencias {
  top: 20%;
  left: 8%;
  border-color: #27ae60;
}

.icono-ciencias::before {
  content: '⚛';
  font-size: 50px;
  color: #2ecc71;
}

.icono-mate {
  top: 30%;
  right: 8%;
  border-color: #2980b9;
}

.icono-mate::before {
  content: '√π';
  font-size: 40px;
  color: #3498db;
}

.icono-lectura {
  top: 65%;
  left: 15%;
  border-color: #e74c3c;
}

.icono-lectura::before {
  content: '📖';
  font-size: 45px;
  color: #e74c3c;
}

.icono-ingles {
  top: 65%;
  right: 10%;
  border-color: #f39c12;
}

.icono-ingles::before {
  content: '✏ English';
  font-size: 18px;
  color: #f39c12;
}

.icono-digital {
  bottom: 15%;
  left: 10%;
  border-color: #8e44ad;
}

.icono-digital::before {
  content: '🖥';
  font-size: 50px;
  color: #8e44ad;
}

footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  padding: 15px 20px;
  text-align: center;
  font-size: 0.9em;
  color: #666;
  backdrop-filter: blur(8px);
  z-index: 2;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.logos-pequenos {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.logos-pequenos img {
  height: 30px;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.logos-pequenos img:hover {
  opacity: 1;
}

footer a {
  color: #3498db;
  text-decoration: none;
  margin: 0 8px;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  body {
    padding: 100px 15px 80px;
  }

  .container {
    padding: 25px;
    max-width: 90%;
    margin: 80px auto 40px;
  }

  .icono {
    width: 60px;
    height: 60px;
  }

  .icono::before {
    font-size: 30px !important;
  }

  .icono-ingles::before {
    font-size: 14px !important;
  }

  footer {
    font-size: 0.8em;
    padding: 10px;
  }

  .logos-pequenos img[alt*="OEI"] {
    height: 20px !important;
    transform: scale(0.8) translateY(1px);
  }

}

.logos-pequenos img[alt="OEI"] {
  height: 15px;
  margin-top: 8px;
}