:root {
  --color-primary: hsl(241, 50%, 90%);
  --color-secondary: hsl(241, 50%, 10%);
  --color-tertiary: hsl(301, 80%, 20%);
  --color-accent: hsl(181, 80%, 20%);
}

.dark {
  --color-primary: hsl(241, 50%, 10%);
  --color-secondary: hsl(241, 50%, 90%);
  --color-tertiary: hsl(301, 80%, 80%);
  --color-accent: hsl(181, 80%, 80%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  font-family: Arial, sans-serif;
}

.signup-container,
.login-container {
  background-color: var(--color-tertiary);
  color: var(--color-primary);
  border: 1px solid var(--color-secondary);
  border-radius: 0.75rem;
  padding: 2rem;
  width: 20rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  animation: fadeIn 1s ease-out forwards;
  opacity: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.signup-container:hover,
.login-container:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.3);
}

h2 {
  color: var(--color-primary);
  margin-bottom: 1rem;
}

label {
  color: var(--color-primary);
  text-align: left;
  font-weight: 600;
  margin: 1rem 0 0.5rem;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--color-secondary);
  border-radius: 0.5rem;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  font-size: 1rem;
}

input[type="submit"] {
  margin-top: 1.5rem;
  background-color: var(--color-accent);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

input[type="submit"]:hover {
  background-color: var(--color-accent);
  transform: scale(1.05);
}

.signup-container a,
.login-container a {
  color: var(--color-primary);
  font-weight: bold;
  text-decoration: none;
  transition: color 0.3s ease;
}

.signup-container a:hover,
.login-container a:hover {
  transform: scale(1.05);
  text-decoration: underline;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}