.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--btn-radius);
  transition: all 0.2s ease-in-out;
  text-decoration: none;
  gap: 0.5rem;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
  box-shadow: 0 4px 6px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 6px 8px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.input-control, .select-control {
  width: 100%;
  padding: 0.75rem;
  border-radius: var(--btn-radius);
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.input-control:focus, .select-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.drop-zone {
  width: 100%;
  height: 250px;
  border: 2px dashed var(--border-color);
  border-radius: var(--card-radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s;
  background-color: var(--bg-tertiary);
  cursor: pointer;
}

.drop-zone.drag-over {
  border-color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
}

.drop-zone svg {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  color: var(--text-tertiary);
}

.drop-zone:hover {
  border-color: var(--text-secondary);
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slider-control {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  outline: none;
}

.slider-control::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
}

.slider-control::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
}