.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease,
    transform 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(35, 77, 224, 0.22);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(35, 77, 224, 0.3);
}

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

.btn-secondary:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
  box-shadow: 0 4px 14px rgba(194, 43, 58, 0.22);
}

.btn-danger:hover {
  filter: brightness(0.92);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(194, 43, 58, 0.3);
}

.btn-block {
  width: 100%;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 6px 4px;
  transition: color 0.15s ease;
}

.back-button:hover {
  color: var(--color-primary);
}

.back-button:hover [data-icon] {
  transform: translateX(-2px);
}

.back-button [data-icon] {
  transition: transform 0.15s ease;
}