body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
}

header {
  background: #111827;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav button {
  margin-left: 10px;
  background: #1f2937;
  border: none;
  color: white;
  padding: 8px 12px;
  cursor: pointer;
}

nav button:hover {
  background: #2563eb;
}

main {
  padding: 20px;
}

textarea {
  width: 100%;
  height: 120px;
  padding: 10px;
  background: #1e293b;
  border: none;
  color: white;
  margin-bottom: 10px;
}

.buttons button {
  margin-right: 10px;
  padding: 10px 15px;
  background: #2563eb;
  border: none;
  color: white;
  cursor: pointer;
}

.buttons button:hover {
  background: #1d4ed8;
}

.tab {
  display: none;
}

.tab.active {
  display: block;
}

.card {
  background: #1e293b;
  padding: 10px;
  margin-bottom: 10px;
  border-left: 4px solid #2563eb;
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
  margin-right: 8px;
}

.switch input {
  display: none;
}

.slider {
  position: absolute;
  cursor: pointer;
  background-color: #374151;
  border-radius: 34px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: .2s;
}

input:checked + .slider:before {
  transform: translateX(26px);
}