* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Poppins', sans-serif; background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
        .login-container { background: white; border-radius: 20px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); overflow: hidden; max-width: 500px; width: 100%; }
        .login-header { background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%); padding: 30px; text-align: center; color: white; }
        .login-header h1 { font-size: 24px; font-weight: 700; margin-bottom: 5px; }
        .login-header p { font-size: 14px; opacity: 0.9; }
        .login-header i { font-size: 40px; margin-bottom: 10px; }
        .login-body { padding: 30px; }
        .nav-tabs { border-bottom: 2px solid #eee; margin-bottom: 25px; }
        .nav-tabs .nav-link { border: none; color: #666; font-weight: 500; padding: 12px 20px; }
        .nav-tabs .nav-link.active { color: #ff6b35; border-bottom: 2px solid #ff6b35; }
        .form-group label { font-weight: 500; color: #333; margin-bottom: 8px; display: block; }
        .form-control { border: 2px solid #e0e0e0; border-radius: 10px; padding: 12px 15px; font-size: 14px; }
        .form-control:focus { border-color: #ff6b35; box-shadow: 0 0 0 3px rgba(255,107,53,0.1); }
        .btn-login { background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%); border: none; color: white; padding: 14px; font-size: 16px; font-weight: 600; border-radius: 10px; width: 100%; cursor: pointer; transition: all 0.3s; }
        .btn-login:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(255,107,53,0.3); }
        .error-message { background: #fee2e2; color: #dc2626; padding: 12px; border-radius: 10px; margin-bottom: 20px; font-size: 14px; }
        .success-message { background: #d1fae5; color: #065f46; padding: 12px; border-radius: 10px; margin-bottom: 20px; font-size: 14px; }
        .back-link { text-align: center; margin-top: 20px; }
        .back-link a { color: #ff6b35; text-decoration: none; font-weight: 500; }