* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: white;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-container {
  background: white;
  padding: 40px;
  border-radius: 10px;
  border: 1px solid #d0d0d0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 400px;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
  font-weight: 600;
}

.subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 30px;
  font-size: 14px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #555;
  font-weight: 500;
}

input[type="email"],
input[type="password"] {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #e1e1e1;
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.3s;
}

input[type="email"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: #667eea;
}

button {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

button:active {
  transform: translateY(0);
}

.message {
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  text-align: center;
  display: none;
}

.message.error {
  background: #fee;
  color: #c00;
}

.message.success {
  background: #e8f5e9;
  color: #2e7d32;
}

.message.show {
  display: block;
}

.auth-link {
  text-align: center;
  margin-top: 20px;
}

.auth-link a {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
}

.auth-link a:hover {
  text-decoration: underline;
}