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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-container {
  width: 100%;
  max-width: 440px;
}

.auth-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  padding: 40px;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-size: 28px;
  color: #1e293b;
  margin-bottom: 8px;
  font-weight: 600;
}

.auth-header p {
  font-size: 15px;
  color: #64748b;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: #334155;
}

.form-group input {
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 15px;
  transition: all 0.2s;
  outline: none;
}

.form-group input:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-hint {
  font-size: 13px;
  color: #64748b;
  margin-top: 4px;
}

.error-message {
  padding: 12px 16px;
  background-color: #fee;
  border: 1px solid #fcc;
  border-radius: 8px;
  color: #c00;
  font-size: 14px;
}

.success-message {
  padding: 12px 16px;
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
  border-radius: 8px;
  color: #155724;
  font-size: 14px;
}

.btn-primary {
  padding: 14px 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

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

.auth-footer {
  margin-top: 24px;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #e2e8f0;
}

.auth-footer p {
  font-size: 14px;
  color: #64748b;
}

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

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

/* Mobile responsive */
@media (max-width: 480px) {
  .auth-card {
    padding: 24px;
  }

  .auth-header h1 {
    font-size: 24px;
  }
}