body {
  background-color: #f0f2f5;
  min-height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.container {
  width: 100%;
  max-width: 100%;
  padding: 0;
}

.login-box {
  background: white;
  padding: 3rem;
  border-radius: 15px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  max-width: 450px;
  margin: 0 auto;
  width: 90%;
}

.login-box h2 {
  color: #1a1a1a;
  font-weight: 600;
  margin-bottom: 2rem;
}

.form-floating .form-control {
  border-radius: 8px;
  border: 2px solid #e1e1e1;
  padding: 1rem;
  height: auto;
}

.form-floating .form-control:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
}

.btn-primary {
  padding: 0.75rem 2rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.trend-box {
  background: white;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  margin-bottom: 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.trend-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-color: #0d6efd;
}

.trend-box h3 {
  color: #1a1a1a;
  font-weight: 600;
  margin-bottom: 1rem;
}

.trend-box p {
  color: #666;
  margin-bottom: 0;
}

.navbar {
  background: linear-gradient(135deg, #1e2a78 0%, #0d6efd 100%) !important;
  padding: 1rem 2rem;
  margin-bottom: 2rem;
  border-radius: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.4rem;
}

.btn-outline-light {
  border-width: 2px;
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-outline-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

#dashboard-container {
  padding: 0 2rem 2rem 2rem;
}

#trend-view {
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.iframe-container {
  flex-grow: 1;
  position: relative;
  height: calc(100vh - 90px);
  margin: 0 2rem 2rem 2rem;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: white;
}

#error-message {
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.row {
  margin: 0;
}

@media (max-width: 768px) {
  .login-box {
    padding: 2rem;
  }
  
  #dashboard-container {
    padding: 0 1rem 1rem 1rem;
  }
  
  .iframe-container {
    margin: 0 1rem 1rem 1rem;
  }
  
  .navbar {
    padding: 1rem;
  }
  
  .trend-box {
    padding: 1.5rem;
  }
}