html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  padding: 20px 0;
}

.spinner-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background-color: rgba(255, 255, 255, 0.9);
  z-index: 9999;
}

.spinner-container.d-none {
  display: none;
}

.spinner-border {
  width: 3rem;
  height: 3rem;
  border-width: 0.25em;
}

.login-container {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
}

.login-card {
  background: white;
  padding: 20px;
  border: 1px solid #ddd;
}

.login-card h2 {
  text-align: center;
  margin-bottom: 20px;
}

.form-label {
  margin-bottom: 8px;
}

.form-control {
  padding: 10px;
  border: 1px solid #ddd;
}

.form-control.is-invalid {
  border-color: #dc3545;
}

.invalid-feedback {
  display: block;
  color: #dc3545;
  font-size: 14px;
  margin-top: 5px;
}

.alert-danger {
  margin-top: 15px;
  padding: 12px;
}

/* Iframe Container Styles */
.iframe-container {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.iframe-header {
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #ddd;
  flex-shrink: 0;
}

.header-nav {
  display: flex;
  gap: 20px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: #333;
  padding: 8px 16px;
  border: 1px solid #ddd;
  background: white;
  cursor: pointer;
  transition: background-color 0.2s;
}

.nav-link:hover {
  background-color: #f5f5f5;
  text-decoration: none;
  color: #333;
}

.nav-link.active {
  background-color: #f2f2f2;
  font-weight: bold;
}

.iframe-content-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.content-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Responsive Design */
@media (max-width: 768px) {
  .iframe-header {
    padding: 10px 15px;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .iframe-header h3 {
    font-size: 18px;
  }
}