/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
  padding: 0;
  background-color: #f7f7f7;
  color: #333;
  overflow-x: hidden;
}

/* Cabecera */
.header {
  background-color: white;
  padding: 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid #eaeaea;
}

.header .container {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
}

.logo {
  max-width: 80px;
  height: auto;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.1);
}

.card-header {
  margin-top: 15px;
  font-size: 20px;
  color: #101E7D;
  font-weight: bold;  
}

/* Contenido principal */
.main-content {
  text-align: center;
  padding: 50px 20px;
  background: linear-gradient(145deg, #ffffff, #f4f4f4);
  min-height: 100vh;
  background-image: url('/img/5.webp');
  background-size: cover;
  background-repeat: no-repeat;
}

.welcome-text {
  font-size: 18px;
  color: #00468B;
  margin-bottom: 40px;
  font-weight: 500;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

/* Tarjeta de certificación */
.certification-card {
  background: white;
  /* padding: 30px; */
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.1);
  max-width: 450px;
  margin: 0 auto;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.certification-card >img {
  width: 100%;
}

.certification-card:hover {
  transform: translateY(-5px);
  box-shadow: 0px 15px 30px rgba(0, 0, 0, 0.2);
}

.card-image img {
  width: 100%;
  border-radius: 10px;
  object-fit: cover;
  height: auto;
}

.card-title {
  font-size: 22px;
  font-weight: bold;
  margin: 20px 0 15px;
  color: #00468B;
}

.card-title span {
  color: #72BE44;
  text-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1);
}

/* Botones de inicio de sesión */
.login-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 20px;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  font-weight: bold;
  text-transform: uppercase;
  box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.google-btn {
  background: #4285F4;
  color: white;
}

.google-btn:hover {
  background: #357AE8;
  transform: translateY(-2px);
  box-shadow: 0px 6px 12px rgba(66, 133, 244, 0.3);
}

.outlook-btn {
  background: #0072C6;
  color: white;
}

.outlook-btn:hover {
  background: #005BA1;
  transform: translateY(-2px);
  box-shadow: 0px 6px 12px rgba(0, 114, 198, 0.3);
}

.btn img {
  width: 20px;
  height: 20px;
  object-fit: cover;
}

.card-body {
  padding: 30px;
}

/* Responsividad */
@media (max-width: 768px) {
  .welcome-text {
    font-size: 16px;
    padding: 0 15px;
  }

  .certification-card {
    padding: 20px;
  }

  .btn {
    font-size: 14px;
    padding: 10px 15px;
  }
}