html, body {
  height: 100%;
  margin: 0;
}

section.full-height {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: #303030;
}

.card {
  box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

.sidebar {
  height: 100vh;
  width: 250px;
  position: fixed;
  top: 0;
  left: 0;
  background-color: #343a40;
  padding-top: 20px;
  z-index: 1000;
  overflow-y: auto;
}

.sidebar a {
  padding: 1rem 1.5rem;
  display: block;
  color: #fff;
  text-decoration: none;
  transition: background 0.2s ease;
}

.sidebar .menu-title {
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
  color: #adb5bd;
  margin-bottom: 10px;
}

.sidebar a:hover,
.sidebar a.active {
  background-color: #495057;
}

.main-content {
  margin-left: 220px;
  padding: 2rem;
  transition: margin-left 0.3s ease;
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .main-content {
    margin-left: 0;
  }
}

.toggle-btn {
  position: fixed;
  top: 15px;
  left: 15px;
  z-index: 1051;
  background-color: #343a40;
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 4px;
}

.topbar {
  height: 56px;
  background-color: #f8f9fa;
  margin-left: 250px;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #dee2e6;
}

@media (max-width: 768px) {
  .topbar {
    margin-left: 0;
  }
}

.modal-content {
    background-color: #fff !important;
    color: #000 !important;
    border-radius: 6px;
  }

  .modal-backdrop.show {
    opacity: 0.5;
  }