:root {
  --primary: #6356f2;
  --accent: #9b59ff;
  --background: #1e1b2e;
  --foreground: #e0e0ff;
  --card: #2a1e3d;
  --border: #4b3a66;
  --muted: #b0a6d0;
  --hover: #3b2a5e;
}

html, body {
  height: 100%;
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: var(--background);
  color: var(--foreground);
  display: flex;
  flex-direction: column;
}

body > .page-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex: 1;
  padding: 2rem 1rem;
  background: rgba(42,30,61,0.3);
}

.signup-error {
  color: #f55;
  background: rgba(255,0,0,0.05);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  text-align: center;
  font-weight: 500;
}

.login-card {
  background: var(--card);
  padding: 3rem 2.5rem;
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  max-width: 400px;
  width: 100%;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.login-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 35px rgba(0,0,0,0.5);
}

.login-card h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.login-card p {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.login-form input {
  padding: 14px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  outline: none;
  background: var(--background);
  color: var(--foreground);
  transition: border 0.3s, box-shadow 0.3s;
}

.login-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,86,242,0.2);
}

.login-form button {
  margin-top: 1rem;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
}

.login-form button:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.login-links {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.login-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.login-links a:hover {
  text-decoration: underline;
  color: var(--accent);
}

.login-links p {
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .login-card {
    padding: 2rem;
  }
  .login-container {
    padding: 1.5rem;
  }
}